General

  • Target

    3533b142cd5b092a59d02aa677c344106be5f549e83a1be077822e5a8dcd4349

  • Size

    119KB

  • Sample

    220220-khjtssbfdr

  • MD5

    02da6d6d95eaf94583b666c2ed490d70

  • SHA1

    38b7074c06f3badbd7e86b7d32c1ddbccff43cb3

  • SHA256

    3533b142cd5b092a59d02aa677c344106be5f549e83a1be077822e5a8dcd4349

  • SHA512

    5ca227bf56e27f8c59f34340681b925a2976f337f646a8f1ba5138698b6f21e81001e27ab313c3fa75bfcf0c43d72f1825bb3ef237dc96e2a893b824e8ccfd4c

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: 12N7W9ycLhuck9Q2wT8E6BaN6XzZ4DMLau Ryuk No system is safe
Wallets

12N7W9ycLhuck9Q2wT8E6BaN6XzZ4DMLau

Targets

    • Target

      3533b142cd5b092a59d02aa677c344106be5f549e83a1be077822e5a8dcd4349

    • Size

      119KB

    • MD5

      02da6d6d95eaf94583b666c2ed490d70

    • SHA1

      38b7074c06f3badbd7e86b7d32c1ddbccff43cb3

    • SHA256

      3533b142cd5b092a59d02aa677c344106be5f549e83a1be077822e5a8dcd4349

    • SHA512

      5ca227bf56e27f8c59f34340681b925a2976f337f646a8f1ba5138698b6f21e81001e27ab313c3fa75bfcf0c43d72f1825bb3ef237dc96e2a893b824e8ccfd4c

    • 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