General

  • Target

    f48c52b820c7ec36afb411dc052d83ced667db46d5b9b729748e73fb70cb1421

  • Size

    151KB

  • Sample

    220220-am65safgbr

  • MD5

    a0a2c05256ee2727a2dfade4dc7544d6

  • SHA1

    fba2fbb09c96de73c903ab40894225cc235bdcfe

  • SHA256

    f48c52b820c7ec36afb411dc052d83ced667db46d5b9b729748e73fb70cb1421

  • SHA512

    48c10e276f2455a29b352db81e72fa1b7bbbe3ef46e8998e1e44900e97cc3fa5682e424fbb0680594dcc45b2003c20bae15fc46f2822001d7669d7b1b7335ddf

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: 1ET85GTps8eFbgF1MvVhFVZQeNp2a6LeGw Ryuk No system is safe
Wallets

1ET85GTps8eFbgF1MvVhFVZQeNp2a6LeGw

Targets

    • Target

      f48c52b820c7ec36afb411dc052d83ced667db46d5b9b729748e73fb70cb1421

    • Size

      151KB

    • MD5

      a0a2c05256ee2727a2dfade4dc7544d6

    • SHA1

      fba2fbb09c96de73c903ab40894225cc235bdcfe

    • SHA256

      f48c52b820c7ec36afb411dc052d83ced667db46d5b9b729748e73fb70cb1421

    • SHA512

      48c10e276f2455a29b352db81e72fa1b7bbbe3ef46e8998e1e44900e97cc3fa5682e424fbb0680594dcc45b2003c20bae15fc46f2822001d7669d7b1b7335ddf

    • 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