General

  • Target

    2024-11-20_f994bb58737568a5d9549aba27765817_bkransomware

  • Size

    6.5MB

  • Sample

    241120-msdfwazpcm

  • MD5

    f994bb58737568a5d9549aba27765817

  • SHA1

    775e2ca46093b3c1da6f75892688ce32188a4286

  • SHA256

    bae538268f69192376e800c6a1145d98f10c53d52a5c140a8946c4d0cc1fefcb

  • SHA512

    e97ab6c13c27734acdc588ed953bd906548b7588d3d49cf0c1432d90fd85f296b8d54dc8e9b3d03f92af0e34bedf018a50bbbf1ced6103c0df2b8864eea6488d

  • SSDEEP

    196608:mr0oklsXtdc6LhccHBBNFXMR8osjcJvnc3VYN9:InXtdcI7DQsjc1nYiN9

Malware Config

Targets

    • Target

      2024-11-20_f994bb58737568a5d9549aba27765817_bkransomware

    • Size

      6.5MB

    • MD5

      f994bb58737568a5d9549aba27765817

    • SHA1

      775e2ca46093b3c1da6f75892688ce32188a4286

    • SHA256

      bae538268f69192376e800c6a1145d98f10c53d52a5c140a8946c4d0cc1fefcb

    • SHA512

      e97ab6c13c27734acdc588ed953bd906548b7588d3d49cf0c1432d90fd85f296b8d54dc8e9b3d03f92af0e34bedf018a50bbbf1ced6103c0df2b8864eea6488d

    • SSDEEP

      196608:mr0oklsXtdc6LhccHBBNFXMR8osjcJvnc3VYN9:InXtdcI7DQsjc1nYiN9

    • Modifies Windows Defender Real-time Protection settings

    • Windows security bypass

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

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

    • Indirect Command Execution

      Adversaries may abuse utilities that allow for command execution to bypass security restrictions that limit the use of command-line interpreters.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Checks installed software on the system

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

    • Drops Chrome extension

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks