2016-10-26 - PSEUDO-DARKLEECH RIG-V FROM 212.8.246.7 SENDS CERBER RANSOMWARE

ASSOCIATED FILES:

• ZIP archive of the pcap:  2016-10-26-pseudoDarkleech-RIGv-sends-Cerber-ransomware.pcap.zip   471 kB (471,356 bytes)

• 2016-10-26-pseudoDarkleech-RIGv-sends-Cerber-ransomware.pcap   (684,888 bytes)

• ZIP archive of the malware:  2016-10-26-pseudoDarkleech-RIGv-sends-Cerber-malware-and-artifacts.zip   624 kB (624,415 bytes)

• 2016-10-26-Cerber-decryption-instructions-README.hta   (63,083 bytes)
• 2016-10-26-Cerber-decryption-instructions.bmp   (1,920,054 bytes)
• 2016-10-26-page-from-joellipman.com-with-injected-script.txt   (68,401 bytes)
• 2016-10-26-pseudoDarkleech-RIGv-flash-exploit.swf   (51,789 bytes)
• 2016-10-26-pseudoDarkleech-RIGv-landing-page.txt   (5,119 bytes)
• 2016-10-26-pseudoDarkleech-RIGv-payload-Cerber.exe   (347,878 bytes)

 

NOTES:

• There are currently at least 2 versions of Rig EK being used in the wild 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 campaign and the pseudoDarkleech campaign.
• Regular Rig EK is still being 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
• 212.8.246.7 port 80 - add.ibeattheclockatticktock.com - RIGv
• 194.165.16.0 - 194.165.19.255 (194.165.16.0/22) port 6892 (UDP) - UDP traffic caused by Cerber
• 172.245.208.5 port 80 - ffoqr3ug7m726zou.ihuk7s.top - HTTP traffic caused by Cerber

OTHER DOMAINS FROM THE DECRYPT INSTRUCTIONS:

• ffoqr3ug7m726zou.72z4vw.top
• ffoqr3ug7m726zou.onion.to

 

FILE HASHES

FLASH EXPLOIT:

• SHA256 hash:  dec250e39815b1efa0a412270155adcae86dcfeed64537cad67ddddc4fb71124
  File name:  2016-10-26-pseudoDarkleech-RIGv-flash-exploit.swf   (51,789 bytes)

PAYLOAD:

• SHA256 hash:  180f6d1b75b66e2e1fee2c332bc022e66bc91adc489c2d2ddadd45616f752663
  File name:  C:\Users\[username]\AppData\Local\Temp\rad01EB7.tmp.exe   (347,878 bytes)

 

IMAGES

Shown above:  Desktop of the infected Windows host after rebooting.

 

FINAL NOTES

Once again, here are the associated files:

• ZIP archive of the pcap:  2016-10-26-pseudoDarkleech-RIGv-sends-Cerber-ransomware.pcap.zip   471 kB (471,356 bytes)
• ZIP archive of the malware:  2016-10-26-pseudoDarkleech-RIGv-sends-Cerber-malware-and-artifacts.zip   624 kB (624,415 bytes)

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