General

  • Target
    97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5
  • Size 384KB
  • Sample220220-ev2mgshfdk
  • SHA256 97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5
  • MD5 SHA1 SHA512

Malware Config

Extracted

Path
  • C:\RyukReadMe.txt

  • ryuk

Ransom Note
  • Your network has been penetrated. All files on each host in the network have been encrypted with a strong algorithm. Backups were either encrypted or deleted or backup disks were formatted. Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover. We exclusively have decryption software for your situation No decryption software is available in the public. DO NOT RESET OR SHUTDOWN - files may be damaged. DO NOT RENAME OR MOVE the encrypted and readme files. DO NOT DELETE readme files. This may lead to the impossibility of recovery of the certain files. To get info (decrypt your files) contact us at [email protected] or [email protected] BTC wallet: 14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk Ryuk No system is safe
Wallets
  • 14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk

Targets

    • Target
      97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5
    • Size 384KB
    • SHA256 97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5
    • MD5 SHA1 SHA512
    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

MITRE ATT&CK Enterprise v6

Tasks