Cortex-Analyzers 2.7.0: 5 Analyzers, 1 Responder

Good morning (or evening if you are on that side of the planet) folks!

We had a very busy week, packed with announcements. First, we released TheHive 4.0-RC2 which you’ve certainly taken to test, then we announced two patch releases for TheHive 3.4. And guess what? Here are some additional Cortex analyzers, a responder and a number of fixes and improvements for existing ones, bringing the total to a whopping 146 analyzers and 18 responders!

New Analyzers

New Responders

Analyzers

ANY.RUN

ANY.RUN is a malware sandbox service in the cloud. By using this analyzer, an analyst can submit a suspicious file or URL to the service for analysis and get a report. The report can contain various information such as:

  • Interactive access
  • Research threats by filter in public submissions
  • File and URL dynamic analysis
  • Mitre ATT&CK mapping
  • Detailed malware reports
ANY.RUN short report
ANY.RUN long report

CyberChef

CyberChef is a simple, intuitive web app for carrying out all manner of “cyber” operations within a web browser. These operations include simple encoding like XOR or Base64, more complex encryption like AES, DES and Blowfish, creating binary and hexdumps, compression and decompression of data, calculating hashes and checksums, IPv6 and X.509 parsing, changing character encodings, and much more.

This analyzer connects to a CyberChef-server and comes in 3 flavors:

  • CyberChef_FromBase64, that takes Base64 strings as input for CyberChef-server
  • CyberChef_FromCharCode, that takes CharCode as input for CyberChef-server and run this recipe
  • CyberChef_FromHex, that takes Hex strings as input for CyberChef-server

TheHive displays the analyzer results as follows:

CyberChef short report
image
CyberChef long report

MalwareBazaar

MalwareBazaar is a project from abuse.ch with the goal of sharing malware samples with the infosec community, AV vendors and threat intelligence providers.

This analyzer allows analysts to query the API of this service on observables of types ip, domain, fqdn, url, and hash.

TheHive displays the analyzer results as follows:

MalwareBazaar short report
MalwareBazaar long report

OpenCTI

OpenCTI is an open source platform allowing organisations to manage their Cyber Threat Intelligence knowledge and observables. It has been created in order to structure, store, organise and visualise technical and non-technical information about cyber threats.

This analyzer allows an analyst to query the API and request for information about observables of types domain, ip, url, fqdn, uri_path, user-agent, hash, email, mail, mail_subject, registry, regexp, filename and other.

TheHive displays the analyzer results as follows:

OpenCTI short report
OpenCTI long report

MISPWarningLists reloaded (need for speed aka DB support)

The previous version of this analyzer basically used to clone the MISP Warning lists repository and do a lookup in downloaded files. This can be very long to complete.

This new version introduces the optional support of PostgreSQL:

  • To store warning lists, in a similar way to the NSRL (National Software Reference Library) Analyzer.
  • Make lookups through these lists faster.

If you want to benefit from the performance boost, using a PostgreSQL server to store the data, you can simply install the requirements.txt, feed the database and configure the connection in the configuration as well:

  • First, sync with the misp-warninglists GitHub repository
  • In the analyzer folder, use the program warninglists_create_db.py to import the warning lists in PostgreSQL. Before running, edit the program file and update the path of where your lists are stored (warninglists_path = "misp-warninglists/**/list.json")
  • You can schedule these jobs (ex. with cron): first, sync a folder with the repository, and then run the program to update the database.

Once done, configure the analyzer with the conn parameter to connect to the database, or, if you prefer to continue using the previous behaviour and do your lookups in files, just specify the path of the folder:

MISPWarningList Configuration example

Templates have also been updated, and TheHive displays the analyzer results as follows:

MISPWarningList short report
MISPWarningList long report

Responders

RT4-CreateTicket

RT4 (Request Tracker) is a ticketing system. With this responder, an analyst can create a ticket in RT. CaseID is submitted to RT as a reference.

Unfortunately, like for some other analyzers and responders, we have not been able to test this responder on our side. Please feel free to share your feedback with us and also with Michael Davis, who we would like to thank for the hard work and for having shared this responder with the community.

Fixes and Improvements

  • Fix Inconsistent Key References in Shodan Analyzer (#748)
  • Fix SSL & python3 for Yeti Analyzer (#468 , #708)
  • Fix bug in Emlparser Analyzer (#730)
  • Fix in Shodan Analyzer: Inconsistent Key References (#748)
  • Support python3 in DNSDB Analyzer (#613)
  • Support APIKey for EmailRep Analyzer (#750)
  • Improvement: EmlParser now extracts some useful IOCs (#710)

Get It While Supply Lasts!

If you are still using the old-style way of installing analyzers and responders, run the following commands:

cd path/to/Cortex-Analyzers
git pull
for I in analyzers/*/requirements.txt; do sudo -H pip3 install -U -r $I || true; done
for I in responders/*/requirements.txt; do sudo -H pip3 install -U -r $I || true; done

Once done, ensure to refresh your analyzers and responders in the Cortex WebUI. Connect as an orgadmin and go to the Organization menu. Click on the Analyzers tab and click on the Refresh analyzers button. Do the same for the Responders tab: click on the Refresh responders button. Refer to the online Cortex documentation for further details.

Update TheHive Report Templates

If you are using TheHive, you must import the new report templates in your instance as follows:

  • download the updated package
  • log in TheHive using an administrator account
  • go to Admin > Report templates` menu
  • click on Import templates button and select the downloaded package

Running Into Trouble?

Shall you encounter any difficulty, please join our user forum, contact us on Gitter, or send us an email at support@thehive-project.org. We will be more than happy to help!

Cortex-Analyzers 2.6.0: 146 Analyzers, 18 Responders

Amidst the ongoing COVID-19 crisis, we managed to release Cortex-Analyzers 2.6.0, which includes 4 new Analyzers, 2 new Responders, and a large number of bug fixes and improvements.

We’d like to thank all the contributors for their awesome work!

We truly appreciate the time they generously give away for helping our fellow cyberdefenders out there protect their environments against attackers who are also in lockdown mode. Attackers who, instead of playing board games or chess, are playing with our nerves and the hordes of teleworkers who are willing to click on anything that provide the ‘latest and greatest COVID-19 information’ or which can help them do their jobs (like this wonderful ‘Zoon’ video-conferencing application 😋).

Les Temps modernes - Film (1936) - SensCritique
Source: senscritique.com

What’s New?

New Analyzers

New Responders

Analyzers

DomainTools Iris

The Investigate flavour was missing from the DomainToolsIris analyzer that was included in Cortex-Analyzers 2.4.0. This is now fixed. This new flavour can be used to gather interesting information on a domain.

TheHive displays the analyzer results as follows:

DomainToolsIris_Investigate short reports
DomainToolsIris_Investigate long report

IntezerCommunity

Intezer Analyze™ is a cloud-based malware analysis service that provides an extensive understanding of any executable file by comparing code on a massive scale to a comprehensive database of malware and trusted software. 

This analyzer can be used to submit a file to the Intezer service for analysis.

TheHive displays the analyzer results as follows:

IntezerCommunity short report
IntezerCommunity long report

NSRL

The National Software Reference Library (NSRL) is designed to collect software from various sources and incorporate file profiles computed from this software into a Reference Data Set (RDS) of information. The RDS can be used by law enforcement, government, and industry organisations to review files on a computer by matching file profiles in the RDS. This will help alleviate much of the effort involved in determining which files are important as evidence on computers or file systems that have been seized as part of criminal investigations.

In order to use this analyzer, you must download and extract NSRLFile files from the NIST website. You can pick multiple files but you need to rename them in order to understand which file contains the required information.

All files are called NSRLFile.txt, renaming them permit to understand in which file the record has been found.

The analyzer can operate in 2 different ways with 2 completely different performance profiles (we’re speaking around 30 secs vs 0.05 sec):

  1. lookup in plain files
  2. lookup in a database

If you are planning to use this analyzer for many searches, then the second option is suggested and we provide a script to help you parse, validate and insert data in a PostgreSQL database. If you choose this option, consider that the DB size can be around 4 times bigger than plain files.

NSRL Lookup short template
NSRL Lookup long report

UrlScan.io

The URLScan.io analyzer has been updated with a new Scan flavour. Until now, this analyzer allowed to request report regarding a url, domain, fqdn observable. With this new flavour, anyone with a valid API key, which can be obtained for free, can request a scan on observables of the same type.

UrlScan.io short template
UrlScan.io long template

Responders

DomainToolsIris_CheckMaliciousTags

Depending on the reports generated by the DomainToolsIris analyzer, this responder adds a tag at the Case and Observable level if something malicious is found. This responder can be updated to add more custom actions depending on your needs and environment.

DomainToolsIris_AddRiskyDNSTag

Depending on on the reports generated by the DomainToolsIris analyzer, this responder adds a tag at the Case and Observable level if one of the domain observables is considered risky. This responder can be updated to add more custom actions depending on your needs and environment.

Fixes and Improvements

  • Improve TalosReputation analyzer (#521)
  • MISP WarningList analyzer fixed (#538)
  • Error fixed in ThreatCrowd (#518)
  • Encoding related bug fixed in Mailer 1_0 (#573)
  • API has changed: temporary fix for Crt_sh_Transparency_Logs_1_0 (#594)
  • Analyzers missing cortexutils in requirements (#695)
  • New mime types for Office documents in FileInfo (#705)
  • UmbrellaBlacklister analyzer now support fqdn and url observables (#547)
  • URLHaus analyzer support fqdn observables (#556)
  • Abuselpdb now support APIv2 (#618)

Get It While Supply Lasts!

If you are still using the old-style way of installing analyzers and responders, run the following commands:

cd path/to/Cortex-Analyzers
git pull
for I in analyzers/*/requirements.txt; do sudo -H pip3 install -U -r $I || true; done
for I in responders/*/requirements.txt; do sudo -H pip3 install -U -r $I || true; done

Once done, ensure to refresh your analyzers and responders in the Cortex WebUI. Connect as an orgadmin and go to the Organization menu. Click on the Analyzers tab and click on the Refresh analyzers button. Do the same for the Responders tab: click on the Refresh responders button. Refer to the online Cortex documentation for further details.

Update TheHive Report Templates

If you are using TheHive, you must import the new report templates in your instance as follows:

  • download the updated package
  • log in TheHive using an administrator account
  • go to Admin > Report templates` menu
  • click on Import templates button and select the downloaded package

Running Into Trouble?

Shall you encounter any difficulty, please join our user forum, contact us on Gitter, or send us an email at support@thehive-project.org. We will be more than happy to help!

Cortex-Analyzers 2.5.0: 142 Analyzers, 16 Responders

Shortly after the release of Cortex-Analyzers 2.4.0, TheHive Project’s code Chefs are happy to announce Cortex-Analyzers 2.5.0, a new Cortex analyzer & responder release which brings the total to 142 analyzers and 16 responders, up from 138 and 10 respectively!

We’d like to thank all the contributors for their precious work which will certainly provide more options to fellow cyber defenders and cyber threat intelligence analysts for improving their efficiency and focus on what really matters.

Source: https://dilbert.com/strip/2007-08-03

What’s New?

New Analyzers

New Responders

Analyzers

Clamav

Clamav is a powerful and open source antivirus engine that allows writing custom signatures using Yara and sigtool. @Hestat contributed with this analyzer that permits to TheHive to communicate with a local clamav-daemon.

A detailed configuration guide is available on Hetstat’s website.

Clamav short report for safe and malicious samples

IPVoid

Contributed by @jdsnape, this analyzer leverages the IP reputation check of apivoid.com, the API of www.ipvoid.com. As you can probably guess by its name, this analyzer can be used to enrich ip observables.

In order to use this analyzer, an account and a valid subscription to apivoid.com are required. An API key needs then to be provided.

TheHive displays the analyzer results as follows:

IPVoid analyzer short report
IPVoid analyzer long report

ThreatResponse

This analyzer lets you leverage the Cisco Threat Response service. Query Threat Response for verdicts and sightings for observables of type domain, filename, fqdn, hash (MD5, SHA1, SHA256), ip and url.

The analyser report lets you pivot into a Threat Response investigation of an observable.

Combining it with AMP for Endpoints Responder

It will extract the connector GUIDs as new observables to enable seamless use of the AMP for Endpoints Responder if a target is returned from the AMP for Endpoints module. It requires the AMP for Endpoints module to be configured in Threat Response.

A valid Cisco ThreatResponse subscription is required, and you have to provide your client ID and password information to use this analyzer.

TheHive displays the analyzer results as follows:

ThreatResponse analyzer short report
ThreatResponser analyzer long report

ThreatGrid

This analyzer queries Cisco Threat Grid for file, url, or hash and deliver analysis report. It also lets you pivot into the Threat Grid report to access more information related to Behavioral indicators or TCP/IP stream.

A valid Cisco Threat Grid subscription is required, and you have to provide hostname and api key to use this analyzer.

TheHive displays the analyzer results as follows:

ThreatGrid analyzer short report
ThreatGrid analyzer long report

Responders

AMPForEndpoints

This responders performs several actions on Cisco AMP for Endpoints. It comes in 5 flavors:

  • AMPforEndpoints_IsolationStart: Start Host Isolation.
  • AMPforEndpoints_IsolationStop: Stop Host Isolation.
  • AMPforEndpoints_MoveGUID: Move Connector GUID to a new group.
  • AMPforEndpoints_SCDAdd: Add SHA256 to a Simple Custom Detection List. TheHive’s case ID and description are appended to the description
  • AMPforEndpoints_SCDRemove: Remove SHA256 from a Simple Custom Detetion List.

A valid Cisco AMP for Endpoints subscription is required, and you have to provide the client id, api key and several context information to use this responder.

Redmine

Redmine is a free and open source, web-based project management and issue tracking tool. It allows users to manage multiple projects and associated subprojects. 

This responder, contribuited by srilumpa, can be used to create an issue in the Redmine ticketing system from a case. It will use the case title as the issue subject and the case description as the issue body.

To set it up in Cortex, you will need:

  • To define a user to allow Cortex to connect to Redmine and with access to the various projects in which issues should be created
  • Define three custom fields in TheHive that will be used to select the project, the tracker and, optionally, the assignee of the issue. These fields can be free form or can be custom fields with preset values.
Custom fields in TheHive for Redmine integration

At the moment the responder has few capabilities. If you need any other integration feel free to discuss on the pull issue.

Cortex responder output and corresponding issue in Redmine

Fixes

  • Umbrella Investigate [#698]

Get It While Supply Lasts!

If you are still using the old-style way of installing analyzers and responders, run the following commands:

cd path/to/Cortex-Analyzers
git pull
for I in analyzers/*/requirements.txt; do sudo -H pip3 install -U -r $I || true; done
for I in responders/*/requirements.txt; do sudo -H pip3 install -U -r $I || true; done

Once done, ensure to refresh your analyzers and responders in the Cortex WebUI. Connect as an orgadmin and go to the Organization menu. Click on the Analyzers tab and click on the Refresh analyzers button. Do the same for the Responders tab: click on the Refresh responders button. Refer to the online Cortex documentation for further details.

Update TheHive Report Templates

If you are using TheHive, you must import the new report templates in your instance as follows:

  • download the updated package
  • log in TheHive using an administrator account
  • go to Admin > Report templates` menu
  • click on Import templates button and select the downloaded package

Running Into Trouble?

Shall you encounter any difficulty, please join our user forum, contact us on Gitter, or send us an email at support@thehive-project.org. We will be more than happy to help!

Mum, Docker Docks Don’t Dock Well!

Soon after we released Cortex-Analyzers 2.4.0, Jérôme noticed that something was definitely wrong. And that something was plural.

As he set to retest a few things here and there, he realised that many docker images, for the latest and greatest analyzers and responders, were not automatically built. The code factory wasn’t working 😰

Source: https://www.flickr.com/photos/8021817@N07/6262431675

So he started digging. And the more he dug, the more bugs he discovered. Our user community also reported a few issues. He thought it was about time he opens that bottle of Aloxe-Corton, put a Makaya McCraven album to play on his turntable, and rolls his sleeves to address all these problems headfirst 🍷

After a few hours of intense work, he managed to fix the docker build process and release Cortex-Analyzers 2.4.1, a hotfix that corrects the following issues:

  • [#545] Message extraction using FileInfo doesn’t always work
  • [#610] The VirusTotal analyzer contains a typo which prevents it from running
  • [#614] Many analyzers fail to run due to incorrect permissions
  • [#619] Abuse Finder not working with docker after force usage of python3
  • [#620] Missing library prevented the build of the docker image corresponding to the new MalwareClustering analyzer

Finally, he took the opportunity to rename Palo Alto AUTOFOCUS analyzers to Autofocus, for consistency purposes.

Please refer to our previous blog post, pertaining to Cortex-Analyzers 2.4.0, for update instructions.

Thank you in advance for your understanding and happy cyberfighting! 💪🏼

Cortex-Analyzers 2.4.0: 138 Ways to Analyze, 10 Methods to Respond

Guess what? TheHive Project is still alive and well, as Saâd already mentioned in a previous blog post.

We’ve been certainly very busy lately, preparing the upcoming release of TheHive 4 and doing many other things beside working on our FOSS project. As a result, it took us a rather long time to merge several community contributions and reduce the sizeable pile of pull requests.

We would like to thank our contributors for their patience and we hope the cyberdefenders out there will enjoy the brand new Cortex-Analyzers 2.4.0 release, with many new analyzers, responders and some bug fixes & improvements, bringing the total to a whooping 138 analyzers (counting all flavors) and 10 responders!

Additionally, with this release, all analyzers are now using Python 3. No more Python 2 technodebt!

Photo by Saâd Kadhi

What’s New?

New Analyzers

8 new analyzers have been added to this release:

1 analyzer has new flavors:

New Responders

3 new responders have been added:

Overview of the New Analyzers

DomainToolsIris

This analyzer looks up domain names, IP addresses, e-mail addresses, and SSL hashes using the popular DomainTools Iris service API.

The analyzer comes in 2 flavors:

  • DomainToolsIris_Investigate: use DomainTools Iris API to investigate a domain.
  • DomainToolsIris_Pivot: use DomainTools Iris API to pivot on ssl_hash, ip, or email.

A valid DomainTools API integration subscription is needed to run this analyzer.

TheHive displays the analyzer results as follows:

DomainToolsIris short report
DomainToolsIris long report

EmailRep

The EmailRep analyzer checks the reputation of an email address against the emailrep.io database.

IPInfo

This analyzer accesses IP-centric features provided by ipinfo.io. While the EmailRep API can be used without a token for limited usage, the ipinfo.io analyzer requires the configuration of an API token before use.

Maltiverse

This analyzer lets you query the free Maltiverse Threat Intelligence platform for enrichment information about a particular hash, domain, ip or url.

TheHive displays the analyzer results as follows:

Maltiverse short report
Maltiverse long report

MalwareClustering

Andrea Garavaglia contributed this one a long time ago and we finally merged it into the Cortex-Analyzers repository. Andrea gave a talk about the background of this analyzer at the fourth MISP summit. You can watch it here.

In order to use the analyzer, you need to point it to a Neo4j server (you need to supply the host, port, login & password).

PaloAlto Autofocus

This analyzer lets you leverage PaloAlto Autofocus services. Provided you are an Autofocus customer and you have access to their API, you need to configure the analyzer with your username and a token key.

The analyzer comes with 3 flavors:

  • AUTOFOCUS_GetSampleAnalysis lets you request a full report for a given hash.
  • AUTOFOCUS_SearchIOC lets you research for samples linked to specific IoCs with datatypes like domain, fqdn, user-agent, imphash, ip, mutex, tag and url. Please note that mutex and tag are not default datatypes in TheHive. You need to create them in TheHive before you can leverage them.
  • AUTOFOCUS_SearchJSON lets you research for samples based on a complex JSON query.

Important: TheHive has no templates corresponding to this analyzer have been published yet. They will be provided in the near future.

SpamhausDBL

This analyzer performs reputation lookups of a domain or a fqdn against Spamhaus Domain Block List (DBL).

TheHive displays the analyzer results as follows:

SpamhausDBL short report
SpamhausDBL long report

TeamCymruMHR

This analyzer queries Team Cymru’s Malware Hash Registry for known malware hashes (MD5 or SHA-1). If it is malware and known by the service, it returns the last time it has been seen along with an approximate anti-virus detection percentage.

Overview of the New Responders

KnowBe4

This responder allows the integration between TheHive/Cortex and KnowBe4’s User Events API.
If a mail observable is tagged with a specified tag, corresponding to the responder’s configuration (e.g. phished), then the associated user will have a custom event added to their profile in KnowBe4.

A valid account on KnowBe4 and an API key are required to run this responder.

Minemeld

This responder sends observables you select to a Palo Alto Minemeld instance.

To run this responder, a MineMeld Threat Intelligence Sharing account is needed.

Wazuh

This responder performs actions on Wazuh, the open source security monitoring platform. It currently supports ad-hoc firewall blocking of ip observables.

Improvements

New PassiveTotal flavors

Thanks to Brandon Dixon, the PassiveTotal analyzer gains 3 new flavors, bringing the total to 11:

  • PassiveTotal_Trackers let you make tracker lookups on observables of type domain, fqdn and ip.
  • PassiveTotal_Host_Pairs let you make host pair lookups on observables of type domain, fqdn and ip.
  • PassiveTotal_Components lets you make components lookup on observables of type domain, fqdn and ip.

They come with their own report templates.

GreyNoise Analyzer

The analyzer has been updated to support GreyNoise API v2, thanks to the contribution of Whitney Champion (#562).

New Data Types Supported by Some Analyzers

  • VirusTotal_GetReporthas been updated to allow requests for observables of type fqdn.
  • Threatcrowd has been updated to allow requests for observables of type domain.
  • Shodan has been updated to allow requests for observables of type fqdn.

Fixes

  • [#602] The MISP analyzer was bumped to version 2.1 and is ready to use PyMISP 2.4.120.

Get It While Supply Lasts!

I’m Hype

If you are using the dockerized analyzers & responders, ensure to refresh your analyzers and responders in the Cortex WebUI. Connect as an orgadmin and go to the Organization menu. Click on the Analyzers tab and click on the Refresh analyzers button. Do the same for the Responders tab: click on the Refresh responders button.

I’m Country

If you are still using the old-style way of installing analyzers and responders, run the following commands:

cd path/to/Cortex-Analyzers
git pull
for I in analyzers/*/requirements.txt; do sudo -H pip3 install -U -r $I || true; done

for I in responders/*/requirements.txt; do sudo -H pip3 install -U -r $I || true; done

Once done, ensure to refresh your analyzers and responders in the Cortex WebUI. Connect as an orgadmin and go to the Organization menu. Click on the Analyzers tab and click on the Refresh analyzers button. Do the same for the Responders tab: click on the Refresh responders button. Refer to the online Cortex documentation for further details.

Update TheHive Report Templates

If you are using TheHive, you must import the new report templates in your instance as follows:

  • download the updated package
  • log in TheHive using an administrator account
  • go to Admin > Report templates menu
  • click on Import templates button and select the downloaded package

Running Into Trouble?

Shall you encounter any difficulty, please join our user forum, contact us on Gitter, or send us an email at support@thehive-project.org. We will be more than happy to help!

Unleash the Power of Dockerized Analyzers in 5 Minutes

One of the big improvements you’ll notice in Cortex 3 is the support for dockerized analyzers. And amongst some of their benefits, the installation process has been significantly simplified. So let’s assume you do not want to bang your head against Python, or other library dependencies. Then read one for a way to set up analyzers and run them quickly.

The following instructions have been tested on Ubuntu 18.04. If you already have a Cortex instance up and running, you can jump directly to the docker installation section below.

Install System Packages

Prerequisites

  • Ensure your system contains the required packages:
sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
  • Oh, and Cortex should have access to the internet 😉

Cortex

Configure your system to install packages from TheHive-Project repositories.

echo 'deb https://dl.bintray.com/thehive-project/debian-stable any main' | sudo tee -a /etc/apt/sources.list.d/thehive-project.list
sudo apt-key adv --keyserver hkp://pgp.mit.edu --recv-key 562CBC1C

Install Cortex:

sudo apt-get update
sudo apt-get install cortex

The Cortex files will be put in /opt/cortex. The Cortex binary will be executed using the cortex account.

The configuration file is /etc/cortex/application.conf.

The Cortex log file is /var/log/cortex/application.log.

Docker

We recommend reading the Docker documentation to install the software.

For Ubuntu 18.04, you can run the following commands:

wget -O- https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable"
sudo apt-get update
sudo apt-get install docker-ce

Use Docker with Cortex

Start by giving the cortex account the permission to run Docker.

usermod -a -G docker cortex

Next, in the Cortex configuration file (/etc/cortex/application.conf) ensure jobs will be executed using Docker:

job {
runner = [docker]
}

Follow the Standard Analyzer Catalog

If you are a complete Cortex noob, please read the Quick Start Guide.

Configure Cortex to get the catalog with up-to-date versions of analyzers. Edit /etc/cortex/application.conf to set the catalog URLs in the analyzer configuration section as shown below:

## ANALYZERS
#
analyzer {
  urls = ["https://dl.bintray.com/thehive-project/cortexneurons/analyzers.json"]
[..]
}

Once Cortex is configured, restart the service with the following command, wait a few seconds and you should be able to connect to Cortex on https://<cortex_host&gt;:9001 et voilà!

sudo service restart cortex

Important Note: The catalog analyzers.json contains information regarding versions of analyzers we consider stable and that are updated with bug fixes. This is typically synchronised with our master branch on Github. When you are using this catalog, you are de facto benefiting from the latest analyzer updates without needing to refresh anything in Cortex or setup again the configuration to get the latest version.

We also provide two additional catalogs:

  • analyzers-stable.json which strictly follows versions of analyzers if you do not want any uncontrolled updates. What does that mean in practice? You will have to click on the Refresh button in Cortex to update your analyzers, disable old ones and enable new versions. Moreover, you will also have to setup again their configuration. Typically, if you installed and setup Cortex with this catalog and the current version of FileInfo analyzers is 6.0, you won’t benefit from the next version, let’s say 6.1, unless you refresh Cortex.
  • analyzers-devel.jsonwhich contains information about new analyzers or version of analyzers that contains code that has been reviewed but not tested enough (or even not tested at all at times) to be deemed ready for production environments. This is typically synchronized with the develop branch of our Github repository.

Same goes for responders. All available catalogs for Cortex are published on bintray so you can choose the one that better fits your needs (or your risk/gambling profile :p).

More than 120 ways of Analyzing your Observables

There’s a new version of Cortex-Analyzers in cybertown and its has an awesome, mind-blowing name and that’s… wait for it… wait for it: 2.1.0.

In this new release, we added two analyzers which bring the total number to more than 120:

We could not duly test DNSSinkhole since we do not have access to the associated service. So we would really appreciate it if you could test it and let us know whether it works or not.

Others analyzers have been fixed or improved:

DNSSinkhole

This analyzer lets you check if an IP address has been registered in your DNS sinkhole. TheHive displays the analyzer results as follows:

DNSSinkhole analyzer: long report
DNSSinkhole analyzer: short report

TalosReputation

This analyzer lets you determine whether an IP address has been reported as a threat on Cisco Talos Intelligence service. No special access to the service is required to run the analyzer.

TheHive displays the analyzer results as follows:

Talos Reputation: long report
Talos Reputation analyzer : short report

Crt.sh

This analyzer has been enriched to display SHA-1 fingerprints. The long report format has been updated to reflect this new information.

Crt.sh analyzer: long report

FileInfo

FileInfo has been updated and is now able to parse PDF files and extract IOCs such as URLs, hosts, domains, IPs, hashes and many more.The analyzer does also support the last version of the extract-msg library.

FileInfo analyzer: IOC Parser long report
FileInfo analyzer: IOC Parser short report

VirusTotal and Python3

The VirusTotal analyzer, including all its flavours, now uses Python3 and an updated virustotal-api library.

Yeti API key

An optional API key can now be configured and used by the Yeti analyzer.

Malwares_GetReport

A hash computation has been fixed in this analyzer.

EMLParser

A first fix has been introduced to avoid this analyzer to crash when there is no content-description in content_header, and a second has been added to correct a header display issue.

IBM XForce Lookup

The analyzer has been improved to allow users to add a trailing / at the end of the API URL without breaking everything.

Updating your Analyzers in Cortex 2.x

Each analyzer and responder comes with its own, pip compatible requirements.txt file. Run the following commands to update your Cortex analyzers to the latest version:

cd path/to/Cortex-Analyzers
git pull
for I in analyzers/*/requirements.txt; do sudo -H pip2 install -U -r $I || true; done && \
for I in analyzers/*/requirements.txt; do sudo -H pip3 install -U -r $I || true; done

for I in responders/*/requirements.txt; do sudo -H pip3 install -U -r $I || true; done

Once done, do not forget to login to Cortex as an orgadmin and click on the Refresh Analyzers button. Refer to the online Cortex documentation for further details.

Dockerised Analyzers

Cortex 3.x gives you the opportunity to run dockerised analyzers and responders. This means that you no longer have to download all the git repository of Cortex-Analyzers and run lengthy commands to update your analyzers and responders.

If you want to use dockerised analyzers and responders, ensure that the URL of the catalog.json file corresponding to the Cortex-Analyzers repository is registered in application.conf. Please note that this won’t work if you are tracking the stable catalog.

After doing so, do not forget to login to Cortex as an orgadmin, click on the Refresh Analyzers button, then Disable and Enable again each analyzer and responder. Analyzer (and responder) updates should occur automatically as long as docker.autoUpdate is set to true in application.conf (this is the default setting).

Update TheHive Report Templates

If you are using TheHive, you must import the new report templates in your instance as follows:

  • download the updated package
  • log in TheHive using an administrator account
  • go to Admin > Report templates menu
  • click on Import templates button and select the downloaded package

Running Into Trouble?

Shall you encounter any difficulty, please join our  user forum, contact us on Gitter, or send us an email at support@thehive-project.org. We will be more than happy to help!