ryuk

General

Target

3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f
Size

150KB
Sample

220220-kn35maafd5
MD5

d7fe5e5a7f201faa9e4c170a6b5584de
SHA1

b18fd85bd286be4390b6a2479dbbc63dac48ff56
SHA256

3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f
SHA512

da7369aee1407d170217f0ec824cbaf38c5c4433280bd349ffc90ec0d57891bdc0e9f3b86c3f05b859ff665bb2d76464216c0dd4f93e22c6edba4fa6dfe58c0e

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
  
  3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f
- Size
  
  150KB
- MD5
  
  d7fe5e5a7f201faa9e4c170a6b5584de
- SHA1
  
  b18fd85bd286be4390b6a2479dbbc63dac48ff56
- SHA256
  
  3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f
- SHA512
  
  da7369aee1407d170217f0ec824cbaf38c5c4433280bd349ffc90ec0d57891bdc0e9f3b86c3f05b859ff665bb2d76464216c0dd4f93e22c6edba4fa6dfe58c0e
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