2016-10-28 - PSEUDO-DARKLEECH RIG-V FROM 109.234.35.124 SENDS CERBER RANSOMWARE

ASSOCIATED FILES:

• ZIP archive of the pcap:  2016-10-28-pseudoDarkleech-RIGv-sends-Cerber-ransomware.pcap.zip   377 kB (377,485 bytes)

• 2016-10-28-pseudoDarkleech-RIGv-sends-Cerber-ransomware.pcap   (585,585 bytes)

• ZIP archive of the malware:  2016-10-28-pseudoDarkleech-RIGv-sends-Cerber-malware-and-artifacts.zip   539 kB (539,426 bytes)

• 2016-10-28-Cerber-decryption-instructions-README.hta   (63,083 bytes)
• 2016-10-28-Cerber-decryption-instructions.bmp   (1,920,054 bytes)
• 2016-10-28-page-from-joellipman.com-with-inejcted-pseudoDarkleech-script.txt   (68,179 bytes)
• 2016-10-28-pseudoDarkleech-RIGv-flash-exploit.swf   (51,814 bytes)
• 2016-10-28-pseudoDarkleech-RIGv-landing-page.txt   (5,101 bytes)
• 2016-10-28-pseudoDarkleech-RIGv-payload-Cerber.exe   (265,123 bytes)

 

NOTES:

• There are currently at least 2 versions of Rig EK being used by different campaigns.
• One is an updated/evolving "VIP version" version of Rig EK that @kafeine has been calling RIG-v as described here.
• The other version of Rig EK is "regular Rig" that generally looks the same as it has for a while now.
• RIG-v is currently being used by the Afraidgate and pseudoDarkleech campaigns.
• Regular Rig EK is still used by the EITest campaign.

 

BACKGROUND ON THE PSEUDO-DARKLEECH CAMPAIGN:

• Something I wrote on exploit kit (EK) fundamentals:  link
• 2016-03-22 - PaloAlto Networks Unit 42 blog:  Campaign Evolution: Darkleech to Pseudo-Darkleech and Beyond
• 2016-07-02 - SANS ISC diary:  Change in patterns for the pseudoDarkleech campaign
• 2016-09-14 - Malware-traffic-analysis.net:  The pseudoDarkleech campaign starts using Rig EK instead of Neutrino EK
• 2016-10-03 - Malware-traffic-analysis.net:  The pseudoDarkleech campaign stops sending CryptXXX, starts sending Cerber ransomware

 

Shown above:  Flowchart for this infection traffic.

 

TRAFFIC

Shown above:  Injected script from the pseudoDarkleech campaign in a page from the compromised site.

Shown above:  Traffic from the infection filtered in Wireshark.

 

ASSOCIATED DOMAINS:

• joellipman.com - Compromised site
• port 80 - do.stlouisescapegame.com109.234.35.124 - RIGv
• 194.165.16.0 - 194.165.19.255 (194.165.16.0/22) port 6892 (UDP) - UDP traffic caused by Cerber
• 200.63.47.104 port 80 - ffoqr3ug7m726zou.1zdllt.bid - HTTP traffic caused by Cerber

OTHER DOMAINS FROM THE DECRYPT INSTRUCTIONS:

• ffoqr3ug7m726zou.f5x6ws.top
• ffoqr3ug7m726zou.onion.to

 

FILE HASHES

FLASH EXPLOIT:

• SHA256 hash:  46aea534c87a11bb39d103fd32a6c76c8b86dfae5fc18f7ebffbefe40f9840c9
  File name:  2016-10-28-pseudoDarkleech-RIGv-flash-exploit.swf   (51,814 bytes)

PAYLOAD (CERBER RANSOMWARE):

• SHA256 hash:  ebc1390d7bcfafe9940989a1b5fcae82f6b92f7f85c65645cb94fd2406038a50
  File name:  C:\Users\[username]\AppData\Local\Temp\rad42400.tmp.exe   (265,123 bytes)

 

FINAL NOTES

Once again, here are the associated files:

• ZIP archive of the pcap:  2016-10-28-pseudoDarkleech-RIGv-sends-Cerber-ransomware.pcap.zip   377 kB (377,485 bytes)
• ZIP archive of the malware:  2016-10-28-pseudoDarkleech-RIGv-sends-Cerber-malware-and-artifacts.zip   539 kB (539,426 bytes)

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