ryuk

General

Target

be1b021843326399a29f22897b25162986389905d25102c47a7d7a5853cc315a
Size

885KB
Sample

221107-n2tpwsedf5
MD5

622bc38dee08e70e91e2be32a58b6d1f
SHA1

7cfec4859fa7ca178095983b3f174f842a44b0c2
SHA256

be1b021843326399a29f22897b25162986389905d25102c47a7d7a5853cc315a
SHA512

176b6ef6eb7ca308df5418643c9054caa41de726546834aea0e964adbe011a127a3eb440becc32a7d7ff922e48242c73c5abeac0688feec123478597a542692d
SSDEEP

12288:BdJPiMwyM02Jl5YqWYgeWYg955/155/0QebUlAAszsK6Qo1Rn6X:BPiMtklagQKUKRzsK6QmN6

Score

10^/10

Malware Config

Extracted

Path

C:\ProgramData\RyukReadMe.txt

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 decrypt 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] You will receive btc address for payment in the reply letter Ryuk No system is safe

Emails

[email protected]

Targets

- Target
  
  be1b021843326399a29f22897b25162986389905d25102c47a7d7a5853cc315a
- Size
  
  885KB
- MD5
  
  622bc38dee08e70e91e2be32a58b6d1f
- SHA1
  
  7cfec4859fa7ca178095983b3f174f842a44b0c2
- SHA256
  
  be1b021843326399a29f22897b25162986389905d25102c47a7d7a5853cc315a
- SHA512
  
  176b6ef6eb7ca308df5418643c9054caa41de726546834aea0e964adbe011a127a3eb440becc32a7d7ff922e48242c73c5abeac0688feec123478597a542692d
- SSDEEP
  
  12288:BdJPiMwyM02Jl5YqWYgeWYg955/155/0QebUlAAszsK6Qo1Rn6X:BPiMtklagQKUKRzsK6QmN6
Score

10^/10

ryuk discovery evasion ransomware
- Ryuk
  Ransomware distributed via existing botnets, often Trickbot or Emotet.
  ransomware ryuk
- Disables Task Manager via registry modification
  evasion
- Drops startup file
- Modifies file permissions
  discovery
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
behavioral1