2016-05-12 - PSEUDO-DARKLEECH ANGLER EK FROM 69.162.126.171 SENDS CRYPTXXX

ASSOCIATED FILES:

• ZIP archive of the pcap:  2016-05-12-pseudo-Darkleech-Angler-EK-sends-CryptXXX.pcap.zip   993.1 kB (993,127 bytes)

• 2016-05-12-pseudo-Darkleech-Angler-EK-sends-CryptXXX.pcap   (1,080,228 bytes)

• ZIP archie of the malware and artifacts:  2016-05-12-pseudo-Darkleech-Angler-EK-sends-CryptXXX-malware-and-artifacts.zip   332.7 kB (332,655 bytes)

• 2016-05-12-CryptXXX-decrypt-instructions.bmp   (368,6454 bytes)
• 2016-05-12-CryptXXX-decrypt-instructions.html   (14,190 bytes)
• 2016-05-12-CryptXXX-decrypt-instructions.txt   (1,755 bytes)
• 2016-05-12-page-from-itsocialtech.com-with-injected-pseudo-Darkleech-script.txt   (92,707 bytes)
• 2016-05-12-pseudo-Darkleech-Angler-EK-CryptXXX-ransomware.dll   (247,296 bytes)
• 2016-05-12-pseudo-Darkleech-Angler-EK-flash-exploit.swf   (66,811 bytes)
• 2016-05-12-pseudo-Darkleech-Angler-EK-landing-page.txt   (95,516 bytes)

NOTES:

• Today's CryptXXX ransomware DLL:  C:\Users\[username]\AppData\Local\Temp\D2B9.tmp.dll   [VT link]
• Today's rundll32.exe used to run the CryptXXX DLL:  C:\Users\[username]\AppData\Local\Temp\schost.exe   [VT link]

• Background on the pseudo-Darkleech campaign is aailable here.
• Proofpoint's blog on Angler EK spreading CryptXXX can be found here.
• An ISC diary I wrote about pseudo-Darkleech causing Angler EK/Bedep/CryptXXX infections is located here.

Shown aboe:  Chain of eents for today's infection.

TRAFFIC

Shown aboe:  Pcap of the traffic on a normal host filtered in Wireshark.   http.request or (tcp.port eq 443 and tcp.flags eq 0x0002)

ASSOCIATED DOMAINS:

• 69.162.126.171 port 80 - prookasieskansanlaulun.jamesaweddingphotography.co.uk - Angler EK
• 144.76.82.19 port 443 - CryptXXX post-infection traffic (custom encoded)

IMAGES

Shown aboe:  Start of injected pseudo-Darkleech script from the compromised website.

Shown aboe:  Somewhere in the middle of injected pseudo-Darkleech script from the compromised website.

Shown aboe:  End of injected pseudo-Darkleech script from the compromised website.

Shown aboe:  Lock screen from the Windows host after today's Angler EK/CryptXXX infection.

FINAL NOTES

Once again, here are the associated files:

• ZIP archive of the pcap:  2016-05-12-pseudo-Darkleech-Angler-EK-sends-CryptXXX.pcap.zip   993.1 kB (993,127 bytes)
• ZIP archie of the malware and artifacts:  2016-05-12-pseudo-Darkleech-Angler-EK-sends-CryptXXX-malware-and-artifacts.zip   332.7 kB (332,655 bytes)

ZIP files are password-protected with the standard password.  If you don't know it, look at the "about" page of this website.

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