Rig Exploit Kit via pseudoDarkleech delivers Cerber Ransomware

NOTES:

  • Today I captured traffic from the latest version of Cerber ransomware. The ransomware was delivered via the pseudoDarkleech campaign with use of the Rig Exploit Kit.
  • The injection method was an Iframe, as mentioned in a post on SANS Internet Storm Center forum Change in patterns for the pseudoDarkleech campaign.
  • It appears the pseudoDarkleech campaign has switched from CrypMic ransomware to Cerber ransomware.

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:
2016-10-01-Rig-EK-pcap.zip

 

ASSOCIATED DOMAINS AND IP ADDRESSES:

  • casanovaturne.hu – COMPROMISED SITE
  • 109.234.37.218 – re.flighteducationfinancecompany.com – RIG EK LANDING PAGE
  • 148.251.6.214 – btc.blockr.io – CERBER POST INFECTION TRAFFIC
  • 45.59.114.125 – ffoqr3ug7m726zou.6tjvli.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.6tjvli.bid
http://ffoqr3ug7m726zou.twyjdx.bid
http://ffoqr3ug7m726zou.3nke6l.bid
http://ffoqr3ug7m726zou.onion

 

IMAGES AND DETAILS OF INFECTION CHAIN:

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

 

Shown above: Injected 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

 

Shown above: Cerber ransomware encrypts files with .8d44 file extension

 

MALICIOUS PAYLOAD ASSOCIATED WITH RIG EXPLOIT: