2016-11-04 - PSEUDO-DARKLEECH RIG-V FROM 109.234.37[.]37 SENDS CERBER RANSOMWARE

NOTICE:

• The zip archives on this page have been updated, and they now use the new password scheme.  For the new password, see the "about" page of this website.

ASSOCIATED FILES:

• 2016-11-04-pseudoDarkleech-RIGv-sends-Cerber-ransomware.pcap.zip   310.7 kB (310,715 bytes)

• 2016-11-04-pseudoDarkleech-RIGv-sends-Cerber-ransomware.pcap   (517,052 bytes)

• 2016-11-04-pseudoDarkleech-RIGv-and-Cerber-ransomware-files.zip   506.9 kB (506,897 bytes)

• 2016-11-04-Cerber-ransomware-decryption-instructions-README.hta   (63,083 bytes)
• 2016-11-04-Cerber-ransomware-decryption-instructions.bmp   (1,920,054 bytes)
• 2016-11-04-page-from-joellipman_com-with-injected-script.txt   (68,032 bytes)
• 2016-11-04-pseudoDarkleech-RIGv-flash-exploit.swf   (51,785 bytes)
• 2016-11-04-pseudoDarkleech-RIGv-landing-page.txt   (5,122 bytes)
• 2016-11-04-pseudoDarkleech-RIGv-payload-Cerber-ransomware.exe   (221,813 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 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
• 109.234.37[.]37 port 80 - new.ginnyeast[.]com - RIGv
• 194.165.16[.]0 - 194.165.19[.]255 (194.165.16[.]0/22) port 6892 (UDP) - UDP traffic caused by Cerber ransomware
• 200.63.47[.]104 port 80 - xrhwryizf5mui7a5.cv0fk0[.]top - HTTP traffic caused by Cerber ransomware

 

OTHER DOMAINS FROM THE DECRYPT INSTRUCTIONS:

• xrhwryizf5mui7a5.c4cwr4[.]bid
• xrhwryizf5mui7a5[.]onion[.]to

 

FILE HASHES

FLASH EXPLOIT:

• SHA256 hash:  a47a9a66351bce381814eff55774fad9ea374d758e53589a862e946b590c5a23
  File name:  2016-11-04-pseudoDarkleech-RIGv-flash-exploit.swf   (51,785 bytes)

PAYLOAD (CERBER RANSOMWARE):

• SHA256 hash:  37e908f803ffdf9128f3d930977076de6636b54804e51b94322b3d7c31ee3b5a
  File name:  C:\Users\[username]\AppData\Local\Temp\rad197DB.tmp.exe   (221,813 bytes)

 

IMAGES

Shown above:  Malware made persistent on the infected host.

 

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