General

  • Target

    61a07425ce30b287deca8e95bd2c03afef89acae17a6b041f418b91459ed53b5

  • Size

    151KB

  • Sample

    220220-heqrtshff4

  • MD5

    fc9054449ba153dedba12b1443ab44cb

  • SHA1

    efff8297b62f2b88fd6f162fead7b883488b37a8

  • SHA256

    61a07425ce30b287deca8e95bd2c03afef89acae17a6b041f418b91459ed53b5

  • SHA512

    9a995ebc85291d8dfbc69af392b9df7b94434aa331fcc50758f8bff187b60661014f68221b22da87871c23a303c46a933d60146409331d5f367fbbca59a3ba55

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 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. More than a year ago, world experts recognized the impossibility of deciphering by any means except the original decoder. No decryption software is available in the public. Antiviruse companies, researchers, IT specialists, and no other persons cant help you encrypt the data. DO NOT RESET OR SHUTDOWN - files may be damaged. DO NOT DELETE readme files. To confirm our honest intentions.Send 2 different random files and you will get it decrypted. It can be from different computers on your network to be sure that one key decrypts everything. 2 files we unlock for free To get info (decrypt your files) contact us at [email protected] or [email protected] BTC wallet: 18eu6KrFgzv8yTMVvKJkRM3YBAyHLonk5G Ryuk No system is safe
Wallets

18eu6KrFgzv8yTMVvKJkRM3YBAyHLonk5G

Targets

    • Target

      61a07425ce30b287deca8e95bd2c03afef89acae17a6b041f418b91459ed53b5

    • Size

      151KB

    • MD5

      fc9054449ba153dedba12b1443ab44cb

    • SHA1

      efff8297b62f2b88fd6f162fead7b883488b37a8

    • SHA256

      61a07425ce30b287deca8e95bd2c03afef89acae17a6b041f418b91459ed53b5

    • SHA512

      9a995ebc85291d8dfbc69af392b9df7b94434aa331fcc50758f8bff187b60661014f68221b22da87871c23a303c46a933d60146409331d5f367fbbca59a3ba55

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • Checks computer location settings

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

    • Adds Run key to start application

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks