2016-12-26 - PSEUDO-DARKLEECH RIG-V FROM 194.87.232.80 SENDS CERBER RANSOMWARE
ASSOCIATED FILES:
- ZIP archive of the pcap: 2016-12-26-pseudoDarkleech-Rig-V-sends-Cerber-ransomware.pcap.zip 731 kB (731,249 bytes)
- 2016-12-26-pseudoDarkleech-Rig-V-sends-Cerber-ransomware.pcap (817,113 bytes)
- ZIP archive of the malware: 2016-12-26-pseudoDarkleech-Rig-V-sends-Cerber-malware-and-artifacts.zip 565 kB (565,067 bytes)
- 2016-12-26-Cerber-decryption-instructions_3QXHSK_README_.hta (67,164 bytes)
- 2016-12-26-Cerber-decryption-instructions_3QXHSK_README_.jpg (234,008 bytes)
- 2016-12-26-page-from-joellipman.com-with-injected-pseudoDarkleech-script.txt (68,440 bytes)
- 2016-12-26-pseudoDarkleech-Rig-V-OTTYUADAF.txt (1,137 bytes)
- 2016-12-26-pseudoDarkleech-Rig-V-flash-exploit.swf (12,765 bytes)
- 2016-12-26-pseudoDarkleech-Rig-V-landing-page.htm (90,277 bytes)
- 2016-12-26-pseudoDarkleech-Rig-V-payload-Cerber-radBC234.tmp.exe (306,878 bytes)
BACKGROUND ON RIG EXPLOIT KIT:
- I'm routinely intercepting 2 versions of Rig EK as classified in an October 2016 blog post by Kafeine.
- Rig-V: a "VIP version" with new URL patterns and RC4 encryption for the payload. Used by the Afraidgate, EITest, and pseudoDarkleech campaigns.
- Rig-E: a variant with old URL patterns, but uses with RC4 encryption for the payload. Also known as Empire Pack. I often see Rig-E 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 from the compromised site.
Shown above: Pcap of the infection traffic filtered in Wireshark.
ASSOCIATED DOMAINS:
- joellipman.com - Compromised site
- 194.87.232.80 port 80 - end.wealthismybirthright.com - Rig-V
- 1.22.15.0 to 1.22.15.31 (1.22.15.0/27) UDP port 6892 - Cerber post-infection UDP traffic
- 2.23.16.0 to 2.23.16.31 (2.23.16.0/27) UDP port 6892 - Cerber post-infection UDP traffic
- 91.239.24.0 to 91.239.25.255 (91.239.24.0/23) UDP port 6892 - Cerber post-infection UDP traffic
- 31.214.157.47 port 80 - ffoqr3ug7m726zou.1jpogn.top - Cerber post-infection HTTP traffic
FILE HASHES
FLASH EXPLOIT:
- SHA256 hash: 7a0902d6ceb67717f0b19bd042787e92bdc2ca41ebe9676315e554125754e4e9 (12,765 bytes)
File description: Rig-V Flash exploit seen on 2016-12-26
PAYLOAD (CERBER RANSOMWARE):
- SHA256 hash: 384b89f1cf6cddeda7a5c05c23ac5709588bd341f329d48dae6eab228b444ef3 (306,878 bytes)
File path: C:\Users\[Username]\AppData\Local\Temp\radBC234.tmp.exe
IMAGES
Shown above: Desktop of an infected Windows host.
FINAL NOTES
Once again, here are the associated files:
- ZIP archive of the pcap: 2016-12-26-pseudoDarkleech-Rig-V-sends-Cerber-ransomware.pcap.zip 731 kB (731,249 bytes)
- ZIP archive of the malware: 2016-12-26-pseudoDarkleech-Rig-V-sends-Cerber-malware-and-artifacts.zip 565 kB (565,067 bytes)
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