ryuk

General

Target

85d9b9e22f6b8e1f1d6a56d219d7c4d486b72657834050ce7652792536d0c8e3
Size

385KB
Sample

220220-fn4zpshaa2
MD5

3895a370b0c69c7e23ebb5ca1598525d
SHA1

0eea1b978df04a50f44657bbdc520905fdcd11cc
SHA256

85d9b9e22f6b8e1f1d6a56d219d7c4d486b72657834050ce7652792536d0c8e3
SHA512

bc87ca0f0a4ba081e92eaab959988f29c8c0d2d338a7d679025a3d4c5921d20856b55febcc41b19c67f6a5a9f8e89bb60a11e641f54d2de62949e37ce6305f1c

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: 15FC73BdkpDMUWmxo7e7gtLRtM8gQgXyb4 Ryuk No system is safe

Emails

[email protected]

Wallets

15FC73BdkpDMUWmxo7e7gtLRtM8gQgXyb4

Targets

- Target
  
  85d9b9e22f6b8e1f1d6a56d219d7c4d486b72657834050ce7652792536d0c8e3
- Size
  
  385KB
- MD5
  
  3895a370b0c69c7e23ebb5ca1598525d
- SHA1
  
  0eea1b978df04a50f44657bbdc520905fdcd11cc
- SHA256
  
  85d9b9e22f6b8e1f1d6a56d219d7c4d486b72657834050ce7652792536d0c8e3
- SHA512
  
  bc87ca0f0a4ba081e92eaab959988f29c8c0d2d338a7d679025a3d4c5921d20856b55febcc41b19c67f6a5a9f8e89bb60a11e641f54d2de62949e37ce6305f1c
Score

10^/10

ryuk persistence ransomware
- Ryuk
  Ransomware distributed via existing botnets, often Trickbot or Emotet.
  ransomware ryuk
- 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
  persistence
behavioral1 behavioral2