ryuk

General

Target

unequal-impact
Size

121KB
Sample

210427-lal68ywkjs
MD5

7364f6222ac58896e8920f32e4d30aac
SHA1

915fd6fb4e20909025f876f3bb453ec52e21b7be
SHA256

23e95ba67603234352ff2864dc7fa54742f501e5922f01f8c182dbefc116f97f
SHA512

f5e2b5a17ed04c7edb904e867cec2f66a59b887176bd3e25803e82a390fc36fc47002df747099ca4e6960f020afe1137f4ba24b28613423b5de0b09ff7048026

Score

10^/10

Malware Config

Extracted

Path

C:\users\Public\RyukReadMe.html

Family

ryuk

Ransom Note

contact balance of shadow universe Ryuk $password = 'RCCF8gd'; $torlink = 'http://rdmnobnbtxh5sm3iiczazaregkpyyub3gktwneeehx62tyot5bc4qhad.onion'; function info(){alert("INSTRUCTION:\r\n1. Download tor browser.\r\n2. Open link through tor browser: " + $torlink + "\r\n3. Fill the form, your password: "+ $password +"\r\nWe will contact you shortly.\r\nAlways send files for test decryption.");};

URLs

http://rdmnobnbtxh5sm3iiczazaregkpyyub3gktwneeehx62tyot5bc4qhad.onion

Targets

- Target
  
  unequal-impact
- Size
  
  121KB
- MD5
  
  7364f6222ac58896e8920f32e4d30aac
- SHA1
  
  915fd6fb4e20909025f876f3bb453ec52e21b7be
- SHA256
  
  23e95ba67603234352ff2864dc7fa54742f501e5922f01f8c182dbefc116f97f
- SHA512
  
  f5e2b5a17ed04c7edb904e867cec2f66a59b887176bd3e25803e82a390fc36fc47002df747099ca4e6960f020afe1137f4ba24b28613423b5de0b09ff7048026
Score

10^/10

ryuk discovery ransomware
- Ryuk
  Ransomware distributed via existing botnets, often Trickbot or Emotet.
  ransomware ryuk
- Executes dropped EXE
- Modifies extensions of user files
  Ransomware generally changes the extension on encrypted files.
  ransomware
- Loads dropped DLL
- Modifies file permissions
  discovery
- Drops desktop.ini file(s)
behavioral1