ryuk

General

Target

46f4bff5e7232f725ea596b736d95e59f4ff45dc49c93ba275a4360216d76238
Size

170KB
Sample

220220-jna86sbcdn
MD5

10bec3496015cbe868396b2b492b7c7d
SHA1

51ca1c61c5cb3be6a27ab8ea921e41bf2598f023
SHA256

46f4bff5e7232f725ea596b736d95e59f4ff45dc49c93ba275a4360216d76238
SHA512

907d9759db4be17929f6418438791fff079f0ddb6bb8aff175389f41742c95229afd1dcd72a72193f0cdd5e225555781189244ecb9a3991d62f82db1fcd790b1

Score

10^/10

Malware Config

Extracted

Path

C:\RyukReadMe.txt

Family

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

Emails

[email protected]

Wallets

14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk

Targets

- Target
  
  46f4bff5e7232f725ea596b736d95e59f4ff45dc49c93ba275a4360216d76238
- Size
  
  170KB
- MD5
  
  10bec3496015cbe868396b2b492b7c7d
- SHA1
  
  51ca1c61c5cb3be6a27ab8ea921e41bf2598f023
- SHA256
  
  46f4bff5e7232f725ea596b736d95e59f4ff45dc49c93ba275a4360216d76238
- SHA512
  
  907d9759db4be17929f6418438791fff079f0ddb6bb8aff175389f41742c95229afd1dcd72a72193f0cdd5e225555781189244ecb9a3991d62f82db1fcd790b1
Score

10^/10

ryuk persistence ransomware
- Ryuk
  Ransomware distributed via existing botnets, often Trickbot or Emotet.
  ransomware ryuk
- Suspicious use of NtCreateProcessExOtherParentProcess
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Adds Run key to start application
  persistence
behavioral1 behavioral2