ryuk

General

Target

aa76633d91e96a6e583883381639329afc97f8bbda699c74577f32f35610df35
Size

168KB
Sample

220220-d18gjsgcc6
MD5

226a208a5421b06f3e2189f1ce516ae3
SHA1

5b375d13a7a92962a4bbd7dac44e0c340e1de8b9
SHA256

aa76633d91e96a6e583883381639329afc97f8bbda699c74577f32f35610df35
SHA512

537351deba56379b58e98ecb1d885cab6ced7c406071477d69b33ea8b98fd5aa82b684a2c8503b188dba71c9c88cdacd94c67358ce9166b64afff3ef719fa1c4

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
  
  aa76633d91e96a6e583883381639329afc97f8bbda699c74577f32f35610df35
- Size
  
  168KB
- MD5
  
  226a208a5421b06f3e2189f1ce516ae3
- SHA1
  
  5b375d13a7a92962a4bbd7dac44e0c340e1de8b9
- SHA256
  
  aa76633d91e96a6e583883381639329afc97f8bbda699c74577f32f35610df35
- SHA512
  
  537351deba56379b58e98ecb1d885cab6ced7c406071477d69b33ea8b98fd5aa82b684a2c8503b188dba71c9c88cdacd94c67358ce9166b64afff3ef719fa1c4
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