ryuk

General

Target

05731714429349d9b4effbf0d1de415bc603c2c29803408f0cec4f02183d9012
Size

148KB
Sample

220219-kl4y5sbabq
MD5

ff13e065cd7fe469f4aac4fcdcd55359
SHA1

b16de52db11a6cf5a60f3f6cde49a52a1370e9b4
SHA256

05731714429349d9b4effbf0d1de415bc603c2c29803408f0cec4f02183d9012
SHA512

f916e17a2cd09b617b9d660b6b8a021f759468c18df776674e48a171ef1615b7f3f545b5de1d9c70635a3a123a78fa55bc55a7e0ef05857c476bab0b633bb101

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 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. More than a year ago, world experts recognized the impossibility of deciphering by any means except the original decoder. No decryption software is available in the public. Antiviruse companies, researchers, IT specialists, and no other persons cant help you encrypt the data. DO NOT RESET OR SHUTDOWN - files may be damaged. DO NOT DELETE readme files. To confirm our honest intentions.Send 2 different random files and you will get it decrypted. It can be from different computers on your network to be sure that one key decrypts everything. 2 files we unlock for free To get info (decrypt your files) contact us at [email protected] or [email protected] BTC wallet: 14aJo5L9PTZhv8XX6qRPncbTXecb8Qohqb Ryuk No system is safe

Emails

[email protected]

Wallets

14aJo5L9PTZhv8XX6qRPncbTXecb8Qohqb

Targets

- Target
  
  05731714429349d9b4effbf0d1de415bc603c2c29803408f0cec4f02183d9012
- Size
  
  148KB
- MD5
  
  ff13e065cd7fe469f4aac4fcdcd55359
- SHA1
  
  b16de52db11a6cf5a60f3f6cde49a52a1370e9b4
- SHA256
  
  05731714429349d9b4effbf0d1de415bc603c2c29803408f0cec4f02183d9012
- SHA512
  
  f916e17a2cd09b617b9d660b6b8a021f759468c18df776674e48a171ef1615b7f3f545b5de1d9c70635a3a123a78fa55bc55a7e0ef05857c476bab0b633bb101
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
- Drops desktop.ini file(s)
behavioral1 behavioral2