VMRay, FireHOL, Joe Sandbox & Fortiguard Analyzers

Announcement, Cortex

We are pleased to announce the availability of 2 new Cortex analyzers and an update to 2 existing ones:

  • New: VMRay and FireHOL
  • Updated: Joe Sandbox and Fortiguard URL Category

We would like to thank Nils Kuhnert from CERT-BUND, CERT-BDF and Eric Capuano for their precious contributions.

To install the new analyzers, grab the Cortex-Analyzers repository and unpack its content (or git pull the master  branch) in your existing /path/to/cortex-analyzers. Then follow the Cortex analyzers guide.

To import the new report templates in your instance of TheHive:

  • 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

VMRay

The VMRay analyzer has been submitted by Nils Kunhert from CERT-BUND. It lets you run a file in a local or remote (cloud) VMRay sandbox. The analyzer also lets you check existing analysis reports.

The analyzer accepts files and hashes as input. VMRay is a commercial service and you need an API key to run the analyzer. To make it work, install the requests Python library. It should already have been installed since it is used by other analyzers as well.

To use the analyzer, add the following section to the Cortex configuration file (application.conf):

VMRay {
 url = ""
 key = ""
 certpath = ""
 }

When called from TheHive, the following output is produced:

sc-short-vmray.png

sc-long-vmray.png
TheHive: VMRay Analyzer – Short and Long Report Samples

Important note: an analysis on VMRay, like on any other sandbox, can take a long time. That is why the analyzer tries to fetch the report until it is ready.

FireHOL

The FireHOL analyzer has been submitted by Nils Kuhnert from CERT-BUND. It lets you use the lists maintained by FireHOL project and check if an IP resides in one of them. FireHOL is an open source project. The analyzer reports the block lists in which an IP resides with the latest updated ones displayed first. To make it work, you’ll need to download the lists in a directory first (and it would be wise to do it on a regular fashion using a cron entry for example):

git clone https://github.com/firehol/blocklist-ipsets

The FireHOL analyzer depends on the following librairies:

ipaddress
pytz
dateutil
datetime

Add the following section to the Cortex configuration file (application.conf) to activate the analyzer:

FireHOLBlocklists {
 blocklistpath = ""
 ignoreolderthandays = <int>
 }

The ignoreolderthandays parameter lets you tell the analyzer to ignore matches found in lists that have not been refreshed in <int> days where <int> is an integer.

When called from TheHive, the following output is produced:

sc-short-fireHOL.png

sc-long-firehol.png

TheHive: FireHOL Analyzer – Short and Long Report Samples

Joe Sandbox

Thanks to CERT-BDF, the Joe Sandbox analyzer has been updated to support Joe Sandbox Cloud service beside the on-premises version (Ultimate). Like with other Joe Sandbox services, you need to add the following section to the Cortex configuration file (application.conf):

JoeSandbox {
 url = ""
 apikey = ""
 }

Fortiguard URL Category

Thanks to Eric Capuano, the Fortiguard URL Category analyzer is working again. Eric has modified it to handle the changes made by Fortiguard to their free online API.

Correction: May 23, 2017
An earlier version of this post used ignoredays instead of ignoreolderthandays for the FireHOL Blocklists analyzer. This parameter has also been described.

Published by Jérôme Leonard

Published