General

  • Target

    246bd8527d0e29245a79011dd9adf43f

  • Size

    624KB

  • Sample

    231225-rheneahbf5

  • MD5

    246bd8527d0e29245a79011dd9adf43f

  • SHA1

    12d0f42e5ed833df9efcf0645494a0175f387c90

  • SHA256

    27f633c80ad1aee9441f89258af73c613ff62c5a8f7206fec2595f37904ae5af

  • SHA512

    e8b6a002633f02eaa0a7c334e654701a795c0cca1648cb5667e33bc1219ea8051cf128235dfeedbe0b6199daf2bebf43c2a8da17e2bb4894185dab0c2f628856

  • SSDEEP

    1536:+EfFNvtgmAl7z5dKY6yuJPW8K43w9NXOM1aRl/i6JWT0S9yXnBibnouy8gHn2JX:+YLmGO4W849NXO9RlK6gOxiDouto2N

Malware Config

Targets

    • Target

      246bd8527d0e29245a79011dd9adf43f

    • Size

      624KB

    • MD5

      246bd8527d0e29245a79011dd9adf43f

    • SHA1

      12d0f42e5ed833df9efcf0645494a0175f387c90

    • SHA256

      27f633c80ad1aee9441f89258af73c613ff62c5a8f7206fec2595f37904ae5af

    • SHA512

      e8b6a002633f02eaa0a7c334e654701a795c0cca1648cb5667e33bc1219ea8051cf128235dfeedbe0b6199daf2bebf43c2a8da17e2bb4894185dab0c2f628856

    • SSDEEP

      1536:+EfFNvtgmAl7z5dKY6yuJPW8K43w9NXOM1aRl/i6JWT0S9yXnBibnouy8gHn2JX:+YLmGO4W849NXO9RlK6gOxiDouto2N

    • Modifies firewall policy service

    • Modifies security service

    • Modifies visibility of file extensions in Explorer

    • Modifies visiblity of hidden/system files in Explorer

    • UAC bypass

    • Windows security bypass

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Sets file execution options in registry

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • UPX packed file

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

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks