Rig Exploit Kit via EITEST delivers Cerber ransomware

NOTES:

  • Today I captured traffic from the Rig Exploit Kit (EK) which delivered Cerber  ransomware via the EITEST campaign.
  • The last time I saw the EITEST campaign deliver Cerber ransomware was August 25th, 2016 – Rig Exploit Kit via EITEST delivers Cerber ransomware.
  • This is a change for the EITEST campaign. Over the last few weeks I have seen the EITEST campaign delivering Crypt2 ransomware.

I have added a zipped pcap file for your analysis. The password for the zipped pcap is infected all lowercase.

PCAP file of the infection traffic:
2016-10-09-Rig-EK-pcap.zip

 

ASSOCIATED DOMAINS AND IP ADDRESSES:

  • www.whsadelaide.com.au – COMPROMISED SITE
  • 108.61.167.148 – tree.maslaknurolplaza.net – RIG EK LANDING PAGE
  • 148.251.6.214 – btc.blockr.io – CERBER POST INFECTION TRAFFIC
  • 173.254.231.111 – ffoqr3ug7m726zou.xilm3s.bid – CERBER POST INFECTION TRAFFIC
  • 31.184.234.0 – 31.184.235.255 UDP Port 6892 – CERBER POST INFECTION TRAFFIC

ASSOCIATED DOMAINS FOR RANSOM PAYMENT:

http://ffoqr3ug7m726zou.xilm3s.bid
http://ffoqr3ug7m726zou.aovd1w.bid
http://ffoqr3ug7m726zou.onion.to

NOTE: Any earlier EITEST Cerber infection showed different associated domains for ransom payment. At first I thought the possibility of the compromised site being infected by both the EITEST campaign and the pseudoDarkleech campaign, however I was not able to find an evidence. Here are those domains for ransom payment:
-http://xrhwryizf5mui7a5.l7g2sv.bid
-http://xrhwryizf5mui7a5.tauunm.bid
-http://xrhwryizf5mui7a5.onion.to

[UPDATE] 2016-10-09
After running the compromised site again below information shows different domains for ransom payment . See below:

Shown above: Domain for ransom payment “http://xrhwryizf5mui7a5” associated with the EITEST campaign

 

IMAGES AND DETAILS OF INFECTION CHAIN:

Shown above: Network traffic  associated with the Rig exploit and Cerber ransomware infection.

 

Shown above: Injected obfuscated hexadecimal script found on index page of compromised site which redirects visitor to the Rig EK landing page to start infection chain – Web page source code can be found by right clicking on web page and selecting “View source”

 

Shown above: Infected host desktop displaying Cerber ransom note and payment instructions

 

MALICIOUS PAYLOAD ASSOCIATED WITH RIG EXPLOIT: