ryuk

General

Target

fd28106da79d2948865ba105fe5d342515c49a6fb216028fa52ac7d058f14684
Size

170KB
Sample

220219-3zyy6affam
MD5

b87e9dd18a5533a09d3e48a7a1efbcf6
SHA1

f041500d895259431f30907f711c7208ebde2a19
SHA256

fd28106da79d2948865ba105fe5d342515c49a6fb216028fa52ac7d058f14684
SHA512

29c6c8690bee5db3891ae083ae99de451a589546cc698869eccb92f30a50c585e0e07e54d9387893e203b74d2ec043afb84cf67ff74bbac8874c4d6ae575df90

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 or deleted or backup disks were formatted. 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 No decryption software is available in the public. DO NOT RESET OR SHUTDOWN - files may be damaged. DO NOT RENAME OR MOVE the encrypted and readme files. DO NOT DELETE readme files. This may lead to the impossibility of recovery of the certain files. To get info (decrypt your files) contact us at [email protected] or [email protected] BTC wallet: 14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk Ryuk No system is safe

Emails

[email protected]

Wallets

14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk

Targets

- Target
  
  fd28106da79d2948865ba105fe5d342515c49a6fb216028fa52ac7d058f14684
- Size
  
  170KB
- MD5
  
  b87e9dd18a5533a09d3e48a7a1efbcf6
- SHA1
  
  f041500d895259431f30907f711c7208ebde2a19
- SHA256
  
  fd28106da79d2948865ba105fe5d342515c49a6fb216028fa52ac7d058f14684
- SHA512
  
  29c6c8690bee5db3891ae083ae99de451a589546cc698869eccb92f30a50c585e0e07e54d9387893e203b74d2ec043afb84cf67ff74bbac8874c4d6ae575df90
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