Cortex 101: Dissecting Observables a Hundred Ways

TheHive Project’s Code Chefs are glad to announce that, thanks to the precious contributions of the user community, Cortex has broken the one hundred analyzer mark.

Cortex-Analyzers version 1.14.0 is out and includes new analyzers, some improvements and some bug fixes.

New Analyzers

New and enhanced analyzers, described below, are:

  • Cisco Investigate by Cisco Umbrella Research @opendns
  • Proofpoint Forensics Lookup by Emmanuel Torquato
  • Proofpoint Threat Insight Forensics Analyzer by Emmanuel Torquato
  • RecordedFuture by jojoob
  • urlscan.io search by ninoseki
  • Google DNS over HTTP by 0xswitch
  • RTF files support in FileInfo by Nils Kuhnert
  • Datascan and Inetnum flavors in Onyphe analyzer by Pierre Baudry and Adrien Barchapt

Again, huge thanks for the awesome work that has been performed by all our contributors!

Investigate

Cisco Umbrella Investigate provides threat intelligence about domains and IP addresses accross the Internet. The analyzer can be used to query the Cisco Umbrella (formerly OpenDNS) API and get information about an IP or a domain name. An API key is required to use this analyzer.

Results are displayed in TheHive in the following manner:

sc-investigate-short

sc-investigate-long
Cisco Investigate: short and long reports

Proofpoint Forensics Lookup

According to Proofpoint’s website, the Forensics API allows insight in detailed forensic evidences about individual threats or compaigns. The analyzer can be used to check observables against given indicators of compromise stored in the ProofPoint service.

Unfortunately, there are currently no sample report screenshots available, because TheHive’s Core Team does not have access to Proofpoint services. Also, due to the same reason, this analyzer could not be tested by us. If you have access to the service and can test the analyzer and/or provide report screenshots, please let us know.

RecordedFuture

This analyzer lets you get the latest risk data from RecordedFuture for a hash, domain or an IP address. It can be used to query the API and get information. An API key is required to use this analyzer.

Results are displayed in TheHive in the following manner:

sc-recordedfuture-short

sc-recordedfuture-long
RecordedFuture: short and long reports

Urlscan.io search

Urlscan.io is a service that scans and analyzes websites. Submitted pages will be browsed like a regular user would do and every activity gets recorded. The analyzer submitted by ninoseki queries urlscan without initiating a scan which would be publicly visible on the website. Accepted datatypes for this analyzer are URL, domain, hash and IP.

The templates which display the results of the analyzer look like the following screenshots:

Screenshot from 2018-10-25 09-55-34

Screenshot from 2018-10-25 09-48-58
Urlscan.io: short and long reports

Google DNS over HTTP

This analyzer provides DNS information for an IP, a domain or a FQDN by making calls to Google DNS-over-HTTP (DoH). No API key is required.

Results are displayed in TheHive in the following manner:sc-googleDNS-short

sc-googleDNS-long
Google DNS: short and long reports

RTF files support in FileInfo

The FileInfo meta analyzer has been improved and now leverages the rtfobj tool provided in the Oletools suite by Decalage.

Results are displayed in TheHive in the following manner:

sc-fileinfo_RTF-short

sc-rtfobj-long
FileInfo with rtfobj: short and long reports

Datascan and Inetnum flavors in Onyphe analyzer

The Onyphe analyzer has been enhanced with two new flavors. Datascan provides information about known open ports on a specific IP, and Inetnum enumerates all known network information about the analyzed IP address.

An API key is required to use the analyzer and can be obtained by creating an account on the Onyphe website.

Results are displayed in TheHive in the following manner:

sc-onyphe-inetnum-short

sc-onyphe_inetnum-long
Onyphe  Inetnum: short and long reports

sc-onyphe_datascan-short

sc-onyphe_datascan-long
Onyphe Datascan: long and short reports

Bug fixes and enhancements

  • #248: Improve error msg when VT Get Report does not have an entry for
  • #323: Fix an issue with HybridAnalysis analyzer filenames handler
  • #329: Enhance PassiveTotal Passive DNS report
  • #348: Fix a typo in URLhaus’s long.html
  • #356 : Force the use of Python3 in MISP analyzer
  • #362: Fix file not found issue and empty result set in CERT.at passive DNS analyzer

Get It While Supply Lasts!

Each analyzer comes with its own, pip compatible requirements.txt file. To update your Cortex analyzers to 1.14.0, run the following commands:

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

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.

Update TheHive Report Templates

If you are using TheHive, get the latest version of  the report templates and import them into TheHive.

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!