General

  • Target
    2025-11-11_b260254b5f12dd88f7c6032ad4fff38a_njrat_ryuk
  • Size 213KB
  • Sample251111-nfenvatpgn
  • SHA256 3e69a2dec173369677126163772d46575e9961794df9a1b2b5d2d97edb9b2539
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • F:\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: 1KURvApbe1yC7qYxkkkvtdZ7hrNjdp18sQ Ryuk No system is safe
Wallets
  • 1KURvApbe1yC7qYxkkkvtdZ7hrNjdp18sQ

Targets

    • Target
      2025-11-11_b260254b5f12dd88f7c6032ad4fff38a_njrat_ryuk
    • Size 213KB
    • SHA256 3e69a2dec173369677126163772d46575e9961794df9a1b2b5d2d97edb9b2539
    • MD5 SHA1 SHA512 SSDEEP
    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • Ryuk family

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

    • Network Share Discovery

      Attempt to gather information on host network.

MITRE ATT&CK Enterprise v16

Tasks