2017-01-13 - AFRAIDGATE RIG-V FROM 92.53.120[.]233 SENDS "OSIRIS" VARIANT LOCKY 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:

• 2017-01-13-Afraidgate-Rig-V-sends-Locky-ransomware.pcap.zip   261 kB (261,334 bytes)

• 2017-01-13-Afraidgate-Rig-V-sends-Locky-ransomware.pcap   (282,727 bytes)

• 2017-01-13-Afraidgate-Rig-V-artifacts-and-Locky-ransomware.zip   245.5 kB (245,549 bytes)

• 2017-01-13-Afraidgate-Rig-V-flash-exploit.swf   (18,074 bytes)
• 2017-01-13-Afraidgate-Rig-V-followup-malware-Locky-ransomware-S5FsUsH4K0hEGopi5d4VwLYFV.exe   (214,528 bytes)
• 2017-01-13-Afraidgate-Rig-V-landing-page.txt   (5,217 bytes)
• 2017-01-13-Afraidgate-Rig-V-payload-Locky-ransomware-downloader-radAE4F3.tmp.exe   (47,616 bytes)
• 2017-01-13-colored.controlweb_com_ve-scripts-imagesloaded.min.js.txt   (490 bytes)
• 2017-01-13-Locky-ransomware-decryption-instructions-DesktopOSIRIS.bmp   (3,864,030 bytes)
• 2017-01-13-Locky-ransomware-decryption-instructions-DesktopOSIRIS.htm   (9,231 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.
• 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 AFRAIDGATE CAMPAIGN:

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

Shown above:  Flowchart for this infection traffic.

 

TRAFFIC

Shown above:  Afraidgate redirect URL leading to a Rig-V landing page.

 

Shown above:  Traffic from the pcap filtered in Wireshark.

 

ASSOCIATED DOMAINS:

• [information removed] - Compromised website
• 178.62.242[.]179 port 80 - colored.controlweb[.]com[.]ve - GET /scripts/imagesloaded.min.js - Afraidgate URL
• 92.53.120[.]233 port 80 - add.travelwriter[.]news - Rig-V
• 200.7.102[.]105 port 80 - lingvitopr[.]com - GET /main.php?g=-590272420&k=6xC7FIJdRpKbQSSE8p36kJ0Bn - Downloader grabbing Locky ransomware binary
• 188.127.239[.]53 port 80 - 188.127.239[.]53 - POST /checkupdate - Locky ransomware post-infection traffic

TOR DOMAIN FROM THE LOCKY RANSOMWARE DECRYPTION INSTRUCTIONS:

• g46mbrrzpfszonuk[.]onion

 

FILE HASHES

RIG-V FLASH EXPLOIT:

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

RIG EK PAYLOAD (LOCKY RANSOMWARE DOWNLOADER):

• SHA256 hash:  e1be9d76fdcd42f1f035fd97ff920582b435e2a0aa9366635e0d971088473f27   (47,616 bytes)
  File location:  C:\Users\[username]\AppData\Local\Temp\radAE4F3.tmp.exe

FOLLOW-UP MALWARE (LOCKY RANSOMWARE):

• SHA256 hash:  d716daefc7d3cc8d97f011d590a2a88f5fc310f73e58f7dcb69801fee1480763   (214,528 bytes)
  File location:  C:\Users\[username]\AppData\Local\Temp\S5FsUsH4K0hEGopi5d4VwLYFV.exe

 

IMAGES

Shown above:  Desktop of an infected Windows host after rebooting.

 

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