ryuk

General

Target

3af6d8ae486dc533fdbb81ca77b33765b9652d173c490862b9b7ea9d42f46794
Size

385KB
Sample

220220-j9bf3abefl
MD5

ab9efa39a5aecf383c095401c1b6c658
SHA1

f72409d3048d4c62cc12ceee280750f44e7eb3fc
SHA256

3af6d8ae486dc533fdbb81ca77b33765b9652d173c490862b9b7ea9d42f46794
SHA512

f4ff7547104c9de4c018daa36e7d60612691c4e07573a2bfe7fdf7dbdad9380251dad76a44a97d4c1eb81c1cc4584ce8c41888c892cd4b947061b5fc90964bb2

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
  
  3af6d8ae486dc533fdbb81ca77b33765b9652d173c490862b9b7ea9d42f46794
- Size
  
  385KB
- MD5
  
  ab9efa39a5aecf383c095401c1b6c658
- SHA1
  
  f72409d3048d4c62cc12ceee280750f44e7eb3fc
- SHA256
  
  3af6d8ae486dc533fdbb81ca77b33765b9652d173c490862b9b7ea9d42f46794
- SHA512
  
  f4ff7547104c9de4c018daa36e7d60612691c4e07573a2bfe7fdf7dbdad9380251dad76a44a97d4c1eb81c1cc4584ce8c41888c892cd4b947061b5fc90964bb2
Score

10^/10

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