General

  • Target

    https://bazaar.abuse.ch/sample/60ef0ca5e6e7d62a7750cfe1c0b08d473cb19a6817a799f035ac56e0d27ce3df/

  • Sample

    210611-7ve91pm4me

Malware Config

Extracted

Path

C:\$Recycle.Bin\RyukReadMe.html

Family

ryuk

Ransom Note
contact balance of shadow universe Ryuk $password = '8x0nKKx5'; $torlink = 'http://rk2zzyh63g5avvii4irkhymha3irblchdfj7prk6zwy23f6kahidkpqd.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://rk2zzyh63g5avvii4irkhymha3irblchdfj7prk6zwy23f6kahidkpqd.onion

Targets

    • Target

      https://bazaar.abuse.ch/sample/60ef0ca5e6e7d62a7750cfe1c0b08d473cb19a6817a799f035ac56e0d27ce3df/

    • Modifies system executable filetype association

    • Registers COM server for autorun

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

MITRE ATT&CK Enterprise v6

Tasks