2017-01-20 - EITEST RIG-V FROM 92.53.120[.]142 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:

• 2017-01-20-EITest-Rig-V-sends-Cerber-ransomware.pcap.zip   608.8 kB (608,766 bytes)

• 2017-01-20-EITest-Rig-V-sends-Cerber-ransomware.pcap   (729,857 bytes)

• 2017-01-20-EITest-Rig-V-artifacts-and-Cerber-ransomware.zip   528.2 kB (528,188 bytes)

• 2017-01-20-Cerber_HELP_HELP_HELP_XZILQ.hta   (75,794 bytes)
• 2017-01-20-Cerber_HELP_HELP_HELP_XZILQ.jpg   (230,523 bytes)
• 2017-01-20-EITest-Rig-V-artifact-QTTYUADAF.txt   (1,137 bytes)
• 2017-01-20-EITest-Rig-V-flash-exploit.swf   (38,165 bytes)
• 2017-01-20-EITest-Rig-V-landing-page.txt   (5,185 bytes)
• 2017-01-20-EITest-Rig-V-payload-Cerber-rad12A26.tmp.exe   (279,012 bytes)
• 2017-01-20-page-from-activaclinics.com-wtih-injected-EITest-script.txt   (59,338 bytes)

BACKGROUND ON RIG EXPLOIT KIT:

• 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.
• I currently call it "Rig-V" out of habit.  You can probably just call it Rig EK now.
• Before 2017, I used to see Empire Pack (Rig-E) which is a variant of Rig EK with older-style URLs as described by Kafeine here.
• I haven't seen anything other than Rig-V (Rig 4.0) when looking at Rig EK-based campaigns so far in 2017.

BACKGROUND ON THE EITEST CAMPAIGN:

• My most recent write-up on the EITest campaign can be found here.

Shown above:  Flowchart for this infection traffic.

 

TRAFFIC

ASSOCIATED DOMAINS:

• activaclinics[.]com - Compromised site
• 92.53.120[.]142 port 80 - try.ciela[.]co - Rig-V

• 17.55.12[.]0 to 17.55.12[.]31 (17.55.12[.]0/27) UDP port 6892 - Cerber ransomware post-infection UDP traffic
• 39.16.22[.]0 to 39.16.22[.]31 (39.16.22[.]0/27) UDP port 6892 - Cerber ransomware post-infection UDP traffic
• 91.239.24[.]0 to 91.239.25[.]255 (91.239.24[.]0/23) UDP port 6892 - Cerber ransomware post-infection UDP traffic
• 162.220.244[.]29 port 80 - p27dokhpz2n7nvgr.1em2j4[.]top - HTTP post-infection traffic caused by Cerber ransomware

 

FILE HASHES

FLASH EXPLOIT:

• SHA256 hash:  c6c505bbee04362a0c7a6cbebcdee963432be874f2adf27f952ea060e229ad22   (38,165 bytes)
  File description:  Rig-V Flash exploit seen on 2017-01-20

PAYLOAD (CERBER RANSOMWARE):

• SHA256 hash:  d4d43ef2a2ccf156b3f1143d83a9798325651c5d5e94fc6dfcbef16aa90ca6b1   (279,012 bytes)
  File path example:  C:\Users\[username]\AppData\Local\Temp\rad12A26.tmp.exe

 

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