Resubmissions

28/01/2025, 21:13

250128-z2z3fsvkfn10

28/01/2025, 19:27

250128-x6bjjsyphy10

General

  • Target
    240304-vnxmysgg24_pw_infected.zip
  • Size 89KB
  • Sample250128-x6bjjsyphy
  • SHA256 8b757a5c244ebda280fcf7eeedb5137809d31a6e0ae09bce13cb6c20ec4163f3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • F:\RyukReadMe.txt

  • ryuk

Ransom Note
  • Your network has been penetrated. All files on each network host have been encrypted with a strong algorithm. Backups were encrypted too. Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover. Only we have exclusive decryption software, suitable for your situation. More than a year ago, world experts recognized the impossibility of such encryption deciphering by any means except the original decoder. No decryption software is available in the public. Antivirus companies, researchers, IT specialists, and any other persons cannot help you to decipher the data. Decryption takes from ten minutes up to several hours. It is performed automatically and doesn't require from you any actions except decoder launching. DO NOT RESET OR SHUTDOWN SYSTEM � files may be damaged. DO NOT DELETE readme files. To confirm our honest intentions. Send 2 different random files and you will get them back decrypted. It can be from different computers on your network to be sure that one key decrypts everything. We will unlock 2 files for free. To get info (decrypt your files) contact us a [email protected] or [email protected] You will receive btc address for payment in the reply letter Ryuk No system is safe

Targets

    • Target
      0195976bef64857fc4c658d47e08463c1c733a879b793642813df10904c3a8c8
    • Size 212KB
    • SHA256 0195976bef64857fc4c658d47e08463c1c733a879b793642813df10904c3a8c8
    • MD5 SHA1 SHA512 SSDEEP
    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • Ryuk family

    • Renames multiple (5807) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops desktop.ini file(s)

MITRE ATT&CK Enterprise v15

Tasks