ryuk

General

Target

23e7c1b52d6ea8adec233eaff38c6a00153de3b99f51b02fe6a297ee5210f9c8
Size

170KB
Sample

220220-k9ts3sahc3
MD5

c4a5c4a20aa92002fd73ffa1eae12875
SHA1

de32df32c920015197ed7304d67ac3475876502b
SHA256

23e7c1b52d6ea8adec233eaff38c6a00153de3b99f51b02fe6a297ee5210f9c8
SHA512

0c8b7702f0f8cfb715f4c7d2c254d3224c7f4f2aacc6cef30f774be8d3210b2defacbabf812d936d590ec720ab7c19c69ae8844f5a55993d0e31d3041fdf9e0b

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
  
  23e7c1b52d6ea8adec233eaff38c6a00153de3b99f51b02fe6a297ee5210f9c8
- Size
  
  170KB
- MD5
  
  c4a5c4a20aa92002fd73ffa1eae12875
- SHA1
  
  de32df32c920015197ed7304d67ac3475876502b
- SHA256
  
  23e7c1b52d6ea8adec233eaff38c6a00153de3b99f51b02fe6a297ee5210f9c8
- SHA512
  
  0c8b7702f0f8cfb715f4c7d2c254d3224c7f4f2aacc6cef30f774be8d3210b2defacbabf812d936d590ec720ab7c19c69ae8844f5a55993d0e31d3041fdf9e0b
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