2017-01-13 - PSEUDO-DARKLEECH RIG-V FROM 92.53.120.233 SENDS CERBER RANSOMWARE

ASSOCIATED FILES:

• ZIP archive of the pcap:  2017-01-13-pseudoDarkleech-Rig-V-sends-Cerber-ransomware.pcap.zip   207 kB (206,952 bytes)

• 2017-01-13-pseudoDarkleech-Rig-V-sends-Cerber-ransomware.pcap   (252,920 bytes)

• ZIP archive of the malware:  2017-01-13-pseudoDarkleech-Rig-V-sends-Cerber-malware-and-artifacts.zip   548 kB (548,005 bytes)

• 2017-01-13-Ceber_HELP_DECRYPT_8MD7KN_.hta   (67,697 bytes)
• 2017-01-13-Ceber_HELP_DECRYPT_8MD7KN_.jpg   (238,188 bytes)
• 2017-01-13-page-from-joellipman.com-with-injected-pseudoDarkleech-script.txt   (66,797 bytes)
• 2017-01-13-pseudoDarkleech-Rig-V-artifact-QTTYUADAF.txt   (1,137 bytes)
• 2017-01-13-pseudoDarkleech-Rig-V-flash-exploit.swf   (18,074 bytes)
• 2017-01-13-pseudoDarkleech-Rig-V-landing-page.txt   (5,196 bytes)
• 2017-01-13-pseudoDarkleech-Rig-V-payload-Cerber-rad5E5E4.tmp.exe   (269,279 bytes)

BACKGROUND ON RIG EXPLOIT KIT:

• I usually run across 2 versions of Rig EK:  Rig-V (Rig 4.0) and Rig-E (Empire Pack).
• Rig-V is what security researchers called Rig EK version 4 when it was only accessible by "VIP" customers, while the old version (Rig 3) was still in use (reference).
• I currently call it "Rig-V" out of habit.
• The proper name for Rig-E is "Empire Pack".  Empire Pack a variant of Rig EK as described by Kafeine here.
• I haven't seen Empire Pack traffic in 2017 yet, but I often see it from the EITest campaign (when EITest is distributing something other than CryptoMix/CryptFile2 or Cerber).

BACKGROUND ON THE PSEUDO-DARKLEECH CAMPAIGN:

• My most recent in-depth write-up on the pseudoDarkleech campaign can be found here.

Shown above:  Flowchart for this infection traffic.

 

TRAFFIC

Shown above:  Injected script in page from compromised website.

 

Shown above:  Traffic from the pcap filtered in Wireshark.

 

ASSOCIATED DOMAINS:

• joellipman.com - Compromised website
• 92.53.120.233 port 80 - add.travelwriter.news - Rig-V
• 97.15.12.0 to 97.15.12.31 (97.15.12.0/27) UDP port 6892 - Cerber post-infection UDP traffic
• 97.2.48.0 to 97.2.48.31 (97.2.48.0/27) 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
• 173.254.204.104 port 80 - p27dokhpz2n7nvgr.1nos7n.top - Cerber post-infection HTTP traffic

 

FILE HASHES

RIG-V FLASH EXPLOIT:

• SHA256 hash:  76cd48af0b8a0dbaa9260996cd4347a811bc0a09efce18c9d25f7cc59828d335   (18,074 bytes)
  File description:  Rig-V Flash exploit seen on 2017-01-13

RIG-V PAYLOAD:

• SHA256 hash:  c55be2790f79fcc87d72f6f0fd00c06e8dc35b905f8fdf8db2142d9715796881   (269,279 bytes)
  File location:  C:\Users\[username]\AppData\Local\Temp\rad5E5E4.tmp.exe
  File description:  Rig-V payload (Cerber ransomware) seen on 2017-01-13

 

IMAGES

Shown above:  Desktop of an infected Windows host.

 

FINAL NOTES

Once again, here are the associated files:

• ZIP archive of the pcap:  2017-01-13-pseudoDarkleech-Rig-V-sends-Cerber-ransomware.pcap.zip   207 kB (206,952 bytes)
• ZIP archive of the malware:  2017-01-13-pseudoDarkleech-Rig-V-sends-Cerber-malware-and-artifacts.zip   548 kB (548,005 bytes)

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