Rig Exploit Kit via EITEST gate 31.184.192.188 delivers GootKit banking malware

NOTES:

  • Today I captured traffic from the Rig Exploit Kit (EK) which delivered GootKit banking malware via the EITEST campaign.
  • EITEST campaign has again changed its gate to IP address 31.184.192.188

I have added a zipped pcap file for your analysis. The password is the usual used by malware researchers. If you do not know it please email me.
info@broadanalysis.com

PCAP file of the infection traffic:
2016-09-15-Rig-EK-pcap.zip

 

ASSOCIATED DOMAINS AND IP ADDRESSES:

  • 31.184.192.188 – bz-party.top – EITEST GATE
  • 185.117.73.174 – k48v.hdep1wfa.top – RIG EK LANDING PAGE
  • 148.251.222.143 – sarlncha.com Port 80 and 443 –POST INFECTION TRAFFIC
  • 198.105.254.228 – obrenese.com –POST INFECTION TRAFFIC [404 ERROR]
  • 198.105.254.228 – shubaaka.com –POST INFECTION TRAFFIC [404 ERROR]
  • 198.105.254.228 – marenule.com –POST INFECTION TRAFFIC [404 ERROR]
  • 198.105.254.228 – chupasab.com –POST INFECTION TRAFFIC [404 ERROR]
  • 198.105.254.228 – galaxans.com –POST INFECTION TRAFFIC [404 ERROR]
  • 198.105.254.228 – purquewe.com –POST INFECTION TRAFFIC [404 ERROR]
  • 198.105.254.228 – quporost.com –POST INFECTION TRAFFIC [404 ERROR]
  • 198.105.254.228 – piploeno.com –POST INFECTION TRAFFIC [404 ERROR]

 

DETAILS OF INFECTION CHAIN FOR RIG EK:

Shown above: Network traffic  associated with the initial Rig exploit and GootKit infection

 

Shown above: DNS traffic traffic  associated with the GootKit infection

 

Shown above: 404 Bad Request error when GootKit attempts connection with IP address 198.105.254.228

 

Shown above: Obfuscated injected script found on index page of compromised site which redirects visitor to the EITEST gate to start infection chain – Web page source code can be found by right clicking on web page and selecting “View source”. See blog post [HERE] for un-obfuscation procedure.

 

Shown above: Alerts generated by Snort using Emerging Threats Open Rule Set

 

MALICIOUS PAYLOAD ASSOCIATED WITH RIG EXPLOIT: