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General

  • Target

    CrystalDiskInfo.exe

  • Size

    1.5MB

  • Sample

    230614-pdbd3sge87

  • MD5

    54b2bbbbde3a88b692f793ad4f95f17d

  • SHA1

    c85acbfeec23c26953da18c9d4f90cc1591d7c79

  • SHA256

    01f4965a9cb79bb5008613244fb231b8b7da260643c0793812821bb19bfe0c4e

  • SHA512

    a21058eec89755220d7ea16d44bbf7d56866d3f8ac70abc6ce96c246f94d3ec416e6d1c497fa748c27553b299442e3c1f428755b8e80648fb3badf8df07dc20e

  • SSDEEP

    24576:yjpNR3HDq1+EOuiGCw6F5yig3zMg1AInmwbU8gHisNObpL/aMJkWsj9jw2D9M4:yjp3HDw+OiFngDMu9nmLypHuWsjC2xV

Malware Config

Targets

    • Target

      CrystalDiskInfo.exe

    • Size

      1.5MB

    • MD5

      54b2bbbbde3a88b692f793ad4f95f17d

    • SHA1

      c85acbfeec23c26953da18c9d4f90cc1591d7c79

    • SHA256

      01f4965a9cb79bb5008613244fb231b8b7da260643c0793812821bb19bfe0c4e

    • SHA512

      a21058eec89755220d7ea16d44bbf7d56866d3f8ac70abc6ce96c246f94d3ec416e6d1c497fa748c27553b299442e3c1f428755b8e80648fb3badf8df07dc20e

    • SSDEEP

      24576:yjpNR3HDq1+EOuiGCw6F5yig3zMg1AInmwbU8gHisNObpL/aMJkWsj9jw2D9M4:yjp3HDw+OiFngDMu9nmLypHuWsjC2xV

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Enumerates connected drives

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

MITRE ATT&CK Enterprise v6

Tasks