2016-10-24 - PSEUDO-DARKLEECH RIG EK FROM 95.183.12.11 SENDS CERBER RANSOMWARE
ASSOCIATED FILES:
- ZIP archive of the pcap: 2016-10-24-pseudoDarkleech-Rig-EK-sends-Cerber-ransomware.pcap.zip 274.5 kB (274,485 bytes)
- 2016-10-24-pseudoDarkleech-Rig-EK-sends-Cerber-ransomware.pcap (477,703 bytes)
- ZIP archive of the malware: 2016-10-24-pseudoDarkleech-Rig-EK-sends-Cerber-malware-and-artifacts.zip 540.0 kB (540,013 bytes)
- 2016-10-24-Cerber-decryption-instructions-README.hta (63,083 bytes)
- 2016-10-24-Cerber-decryption-instructions.bmp (1,920,054 bytes)
- 2016-10-24-page-from-avalon-logistic.com-with-injected-script.txt (46,084 bytes)
- 2016-10-24-pseudoDarkleech-Rig-EK-flash-exploit.swf (51,786 bytes)
- 2016-10-24-pseudoDarkleech-Rig-EK-landing-page.txt (5,075 bytes)
- 2016-10-24-pseudoDarkleech-Rig-EK-payload-Cerber.exe (265,339 bytes)
NOTES:
- Thanks to @BroadAnalysis for emailing me about the compromised site.
- Looks like Rig EK changed its URL patterns since yesterday.
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:
- avalon-logistic.com - Compromised site
- 95.183.12.11 port 80 - ds.mapalocksmith.com - Rig EK
- 194.165.16.0 - 194.165.19.255 (194.165.16.0/22) port 6892 (UDP) - UDP traffic caused by Cerber
- 136.243.157.171 port 80 - ffoqr3ug7m726zou.0ndl3j.bid - HTTP traffic caused by Cerber
OTHER DOMAINS FROM THE DECRYPT INSTRUCTIONS:
- ffoqr3ug7m726zou.osc6l4.bid
- ffoqr3ug7m726zou.onion.to
FILE HASHES
FLASH EXPLOIT:
- SHA256 hash: 0289e0909b4141e37e2a7f3a5de4390d64f444081b507502976f6b4dc2ab3baa
File name: 2016-10-24-pseudoDarkleech-Rig-EK-flash-exploit.swf (51,786 bytes)
PAYLOAD:
- SHA256 hash: 382624b9587792bcf5d16bf6b123ce4d810d702b0b4cc71624a170d76a8b0d97
File name: C:\Users\[username]\AppData\Local\Temp\rad91739.tmp.exe (265,339 bytes)
IMAGES
Shown above: Desktop of the infected Windows host after rebooting and checking one of the Cerber Decryptor URLs.
FINAL NOTES
Once again, here are the associated files:
- ZIP archive of the pcap: 2016-10-24-pseudoDarkleech-Rig-EK-sends-Cerber-ransomware.pcap.zip 274.5 kB (274,485 bytes)
- ZIP archive of the malware: 2016-10-24-pseudoDarkleech-Rig-EK-sends-Cerber-malware-and-artifacts.zip 540.0 kB (540,013 bytes)
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