ryuk

General

Target

present-evidence
Size

170KB
Sample

210427-12x2gdxl2x
MD5

f8b4e1f992524d675052d26e1a464803
SHA1

771d3a140959a1c1890351a842fe8c63e4da6eb7
SHA256

efbdbacda5b2b84165f3d4a5a974f98032b3f0dd2733188e079cda131671bde5
SHA512

ea80225dac886a7543ee49d0fb2c4ada057ae489f18da02653a1978808e2501e64e558a0dab9b3dd0512dfbff7180d2749632763a84d17e933d73dd2975aa04e

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
  
  present-evidence
- Size
  
  170KB
- MD5
  
  f8b4e1f992524d675052d26e1a464803
- SHA1
  
  771d3a140959a1c1890351a842fe8c63e4da6eb7
- SHA256
  
  efbdbacda5b2b84165f3d4a5a974f98032b3f0dd2733188e079cda131671bde5
- SHA512
  
  ea80225dac886a7543ee49d0fb2c4ada057ae489f18da02653a1978808e2501e64e558a0dab9b3dd0512dfbff7180d2749632763a84d17e933d73dd2975aa04e
Score

10^/10

ryuk persistence ransomware spyware stealer
- Ryuk
  Ransomware distributed via existing botnets, often Trickbot or Emotet.
  ransomware ryuk
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Adds Run key to start application
  persistence
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
behavioral1