ryuk

General

Target

d27d318e35c5a625f2f29128dea3982dede23c96292056c6c2d18a73b82f946b
Size

203KB
Sample

220220-b2p1gsfdf8
MD5

1204f4881b1b67007e74e3129ae74992
SHA1

1a184b8e44c447140300946287300b8f382654ac
SHA256

d27d318e35c5a625f2f29128dea3982dede23c96292056c6c2d18a73b82f946b
SHA512

c87ef11347596e0969309568a92f138810eb13b46378ce5c2321597d2b006d65165d711ebb9a3372d3396c730ce7c552a0b54562e873ddba8513590316458e47

Score

10^/10

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\RyukReadMe.html

Family

ryuk

Ransom Note

<html><body><p style="font-weight:bold;font-size:125%;top:0;left:0;"> [email protected] <br> </p><p style="position:absolute;bottom:0;right:1%;font-weight:bold;font-size:170%">balance of shadow universe</p><div style="font-size: 550%;font-weight:bold;width:50%;height:50%;overflow:auto;margin:auto;position:absolute;top:35%;left:40%;">Ryuk</div></body></html��

Emails

[email protected]

Extracted

Path

C:\Documents and Settings\RyukReadMe.html

Family

ryuk

Ransom Note

[email protected] balance of shadow universe Ryuk

Emails

[email protected]

Targets

- Target
  
  d27d318e35c5a625f2f29128dea3982dede23c96292056c6c2d18a73b82f946b
- Size
  
  203KB
- MD5
  
  1204f4881b1b67007e74e3129ae74992
- SHA1
  
  1a184b8e44c447140300946287300b8f382654ac
- SHA256
  
  d27d318e35c5a625f2f29128dea3982dede23c96292056c6c2d18a73b82f946b
- SHA512
  
  c87ef11347596e0969309568a92f138810eb13b46378ce5c2321597d2b006d65165d711ebb9a3372d3396c730ce7c552a0b54562e873ddba8513590316458e47
Score

10^/10

ryuk persistence ransomware
- Ryuk
  Ransomware distributed via existing botnets, often Trickbot or Emotet.
  ransomware ryuk
- Executes dropped EXE
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL
- Adds Run key to start application
  persistence
behavioral1 behavioral2