2016-08-26 - EITEST RIG EK SENDS CRYPTFILE2 RANSOMWARE

ASSOCIATED FILES:

  • 2016-08-26-EITest-Rig-EK-sends-CryptFile2.pcap   (335,251 bytes)
  • 2016-08-26-EITest-Rig-EK-flash-exploit.swf   (46,200 bytes)
  • 2016-08-26-EITest-Rig-EK-landing-page.txt   (5,252 bytes)
  • 2016-08-26-EITest-Rig-EK-payload-CryptFile2.exe   (130,048 bytes)
  • 2016-08-26-EITest-flash-redirect-from-mapobifi.xyz.swf   (5,508 bytes)
  • 2016-08-26-page-from-tdca.ca-with-injected-EITest-script.txt   (118,395 bytes)
  • HELP_DECRYPT_YOUR_FILES.HTML   (2,118 bytes)
  • HELP_DECRYPT_YOUR_FILES.TXT   (3,170 bytes)

 

BACKGROUND ON THE EITEST CAMPAIGN:

BACKGROUND ON CRYPTFILE2 RANSOMWARE:

 


Shown above:  Flowchart for this infection traffic.

 

TRAFFIC


Shown above:  Injected script in page from the compromised site pointing to the EITest gate.

 


Shown above:  Traffic from the pcap filtered in Wireshark.

 

ASSOCIATED DOMAINS:

EMAILS TO GET THE DECRYPT INSTRUCTIONS:

 

FILE HASHES

FLASH FILES:

PAYLOAD:

 

IMAGES


Shown above:  The infected Windows desktop after rebooting.

 


Shown above:  Example of the encrypted file names from an infected host.

 


Shown above:  Registry entries showing how the CryptFile2 ransomware stays persistent on an infected Windows host.

 

FINAL NOTES

Once again, here are the associated files:

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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