ryuk

General

Target

23bc676a012c7fda532cbfc0d41ecd0bdda9b1cdd261e2923a03a7303bc1f33c
Size

150KB
Sample

220220-k92tpacaek
MD5

b490d304dae26ddc3af849ec4a820abd
SHA1

1a66f0ade41ae203217177c1be1cea0017d33aec
SHA256

23bc676a012c7fda532cbfc0d41ecd0bdda9b1cdd261e2923a03a7303bc1f33c
SHA512

6a849674fbc350f4f5ebefb5ee39483b5cdac93e3b81c5b5c098ad6a78bbcaafa27de668a31bb227a91407ea01712776405cb7c8b16fc3633c53a4def088d809

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: 1FRNVupsCyTjUvF36GxHZrvLaPtY6hgkTm Ryuk No system is safe

Emails

[email protected]

Wallets

1FRNVupsCyTjUvF36GxHZrvLaPtY6hgkTm

Targets

- Target
  
  23bc676a012c7fda532cbfc0d41ecd0bdda9b1cdd261e2923a03a7303bc1f33c
- Size
  
  150KB
- MD5
  
  b490d304dae26ddc3af849ec4a820abd
- SHA1
  
  1a66f0ade41ae203217177c1be1cea0017d33aec
- SHA256
  
  23bc676a012c7fda532cbfc0d41ecd0bdda9b1cdd261e2923a03a7303bc1f33c
- SHA512
  
  6a849674fbc350f4f5ebefb5ee39483b5cdac93e3b81c5b5c098ad6a78bbcaafa27de668a31bb227a91407ea01712776405cb7c8b16fc3633c53a4def088d809
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