2017-01-19 - EITEST RIG-V FROM 92.53.119[.]137 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:

• 2017-01-19-EITest-Rig-V-sends-Cerber-ransomware.pcap.zip   1.1 MB (1,120,836 bytes)

• 2017-01-19-EITest-Rig-V-sends-Cerber-ransomware.pcap   (1,244,877 bytes)

• 2017-01-19-EITest-Rig-V-artifacts-and-Cerber-ransomware.zip   658.0 kB (658,030 bytes)

• 2017-01-19-Cerber-ransomware_HELP_HELP_HELP_GTJK.hta   (75,787 bytes)
• 2017-01-19-Cerber-ransomware_HELP_HELP_HELP_GTJK.jpg   (239,008 bytes)
• 2017-01-19-EITest-Rig-V-artifact-QTTYUADAF.txt   (1,137 bytes)
• 2017-01-19-EITest-Rig-V-flash-exploit.swf   (38,321 bytes)
• 2017-01-19-EITest-Rig-V-landing-page.txt   (5,187 bytes)
• 2017-01-19-EITest-Rig-V-payload-Cerber-ransomware-radF2A80.tmp.exe   (516,467 bytes)
• 2017-01-19-page-from-activaclinics_com-with-injected-EITest-script.txt   (59,324 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

Shown above:  Injected script from the EITest campaign from the compromised site.

 

Shown above:  Pcap of the infection traffic filtered in Wireshark.

 

ASSOCIATED TRAFFIC:

• activaclinics[.]com - Compromised site
• 92.53.119[.]137 port 80 - 4rl.sensorigames[.]com - Rig-V

• 90.2.1[.]0 to 90.2.1[.]31 (90.2.1[.]0/27) UDP port 6892 - Cerber ransomware post-infection UDP traffic
• 90.3.1[.]0 to 90.3.1[.]31 (90.3.1[.]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.1kja1j[.]top - HTTP post-infection traffic caused by Cerber ransomware

 

FILE HASHES

FLASH EXPLOIT:

• SHA256 hash:  48b4ead5c286c616d7cb11900ef01b41893aae710c255ffd4b12933d7d5cbcbc   (38,321 bytes)
  File description:  Rig-V Flash exploit seen on 2017-01-19

PAYLOAD (CERBER RANSOMWARE):

• SHA256 hash:  872d8c03172435bda8f5a4beae2453220bff64fb83e97a3662ab570dab50e94e   (516,467 bytes)
  File path example:  C:\Users\[username]\AppData\Local\Temp\radF2A80.tmp.exe

 

IMAGES

Shown above:  Desktop of the infected Windows host.

 

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