General

  • Target

    ef6663a386947c3a2dfb1b0ec51050ef2b4b6d1e5cde8264e17c92282a159506

  • Size

    255KB

  • Sample

    221030-batvcsfbak

  • MD5

    a33e8a8c3463ad0c7f3962d4f6179880

  • SHA1

    b850af32ab7d09da67c0caef424c718cecf0ad71

  • SHA256

    ef6663a386947c3a2dfb1b0ec51050ef2b4b6d1e5cde8264e17c92282a159506

  • SHA512

    2ea72ecc7a8030f15369807fb15b7aa2f1d6a6377bce01dd126cbc0e5f6863ad2b1bec34d341f051e29caa577c7860dda67028ed71b49f360f6ab65479af5877

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJ/:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIg

Malware Config

Targets

    • Target

      ef6663a386947c3a2dfb1b0ec51050ef2b4b6d1e5cde8264e17c92282a159506

    • Size

      255KB

    • MD5

      a33e8a8c3463ad0c7f3962d4f6179880

    • SHA1

      b850af32ab7d09da67c0caef424c718cecf0ad71

    • SHA256

      ef6663a386947c3a2dfb1b0ec51050ef2b4b6d1e5cde8264e17c92282a159506

    • SHA512

      2ea72ecc7a8030f15369807fb15b7aa2f1d6a6377bce01dd126cbc0e5f6863ad2b1bec34d341f051e29caa577c7860dda67028ed71b49f360f6ab65479af5877

    • SSDEEP

      3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJ/:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIg

    • Modifies visibility of file extensions in Explorer

    • Modifies visiblity of hidden/system files in Explorer

    • Windows security bypass

    • Disables RegEdit via registry modification

    • Executes dropped EXE

    • UPX packed file

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

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Windows security modification

    • Adds Run key to start application

    • Enumerates connected drives

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

    • Modifies WinLogon

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks