ryuk

General

Target

7433f2a47d324d386ed215930ab6607a7cce28d5cef868afe994582c409e5dc9
Size

191KB
Sample

220220-ge513sacfn
MD5

708f63f5ef0bafa61743f242f470480f
SHA1

96233bf3b488a31852b8e32f7cb91dd5d935f9c2
SHA256

7433f2a47d324d386ed215930ab6607a7cce28d5cef868afe994582c409e5dc9
SHA512

5e202f916430e179373c814e2b2cefbb993b83c597776afecea731c190f3aec1ce21c76ce1786afc8ab5d92c060201ce0828b9ac81d709407a8b6358146260c9

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

Family

ryuk

Ransom Note

[email protected] balance of shadow universe Ryuk

Emails

[email protected]

Targets

- Target
  
  7433f2a47d324d386ed215930ab6607a7cce28d5cef868afe994582c409e5dc9
- Size
  
  191KB
- MD5
  
  708f63f5ef0bafa61743f242f470480f
- SHA1
  
  96233bf3b488a31852b8e32f7cb91dd5d935f9c2
- SHA256
  
  7433f2a47d324d386ed215930ab6607a7cce28d5cef868afe994582c409e5dc9
- SHA512
  
  5e202f916430e179373c814e2b2cefbb993b83c597776afecea731c190f3aec1ce21c76ce1786afc8ab5d92c060201ce0828b9ac81d709407a8b6358146260c9
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