2016-10-06 - PSEUDO-DARKLEECH RIG EK FROM 107.191.63[.]102 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:

• 2016-10-06-pseudoDarkleech-Rig-EK-sends-Cerber-ransomware.pcap.zip   349.4 kB (349,390 bytes)

• 2016-10-06-pseudoDarkleech-Rig-EK-sends-Cerber-ransomware.pcap   (461,857 bytes)

• 2016-10-06-pseudoDarkleech-Rig-EK-and-Cerber-ransomware-files.zip   329.1 kB (329,071 bytes)

• 2016-10-06-Cerber-ransomware-decrypt-instructions-README.hta   (63,059 bytes)
• 2016-10-06-page-from-howmuchtofly_com-with-injected-script.txt   (28,871 bytes)
• 2016-10-06-pseudoDarkleech-Rig-EK-flash-exploit.swf   (24,738 bytes)
• 2016-10-06-pseudoDarkleech-Rig-EK-landing-page.txt   (30,091 bytes)
• 2016-10-06-pseudoDarkleech-Rig-EK-payload-Cerber-ransomware.exe   (284,645 bytes)

 

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 page from the compromised site.

 

Shown above:  Traffic from the pcap filtered in Wireshark.

 

ASSOCIATED DOMAINS:

• howmuchtofly[.]com - Compromised website
• 107.191.63[.]102 port 80 - pop.42-maslak[.]net - Rig EK
• 31.184.234[.]0 - 31.184.235[.]255 port 6892 (UDP) - UDP traffic caused by Cerber ransomware
• 173.254.231[.]111 port 80 - ffoqr3ug7m726zou.l4jpwv[.]bid - HTTP traffic caused by Cerber ransomware

DOMAINS FROM THE DECRYPT INSTRUCTIONS:

• ffoqr3ug7m726zou.13uvry[.]top
• ffoqr3ug7m726zou.3nke6l[.]bid
• ffoqr3ug7m726zou[.]onion[.]to

 

FILE HASHES

FLASH EXPLOIT:

• SHA256 hash:  662ba372c286dcd19d52720052b2f8bb9042d60dea47349974016f39b454d46e
  File name:  2016-10-06-pseudoDarkleech-Rig-EK-flash-exploit.swf   (24,738 bytes)

PAYLOAD:

• SHA256 hash:  5a657b257dea1e2e0703a3afaac814bdca239721d51b293581de71b4a90ea624
  File name:  2016-10-06-pseudoDarkleech-Rig-EK-payload-Cerber-ransomware.exe   (284,645 bytes)

 

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