General

  • Target

    SolaraBootstrapper.exe

  • Size

    13KB

  • Sample

    240610-a21ljsab63

  • MD5

    6557bd5240397f026e675afb78544a26

  • SHA1

    839e683bf68703d373b6eac246f19386bb181713

  • SHA256

    a7fecfc225dfdd4e14dcd4d1b4ba1b9f8e4d1984f1cdd8cda3a9987e5d53c239

  • SHA512

    f2399d34898a4c0c201372d2dd084ee66a66a1c3eae949e568421fe7edada697468ef81f4fcab2afd61eaf97bcb98d6ade2d97295e2f674e93116d142e892e97

  • SSDEEP

    192:konexQO0FoAWyEfJkVIaqaLHmr/XKT0ifnTJ1jvVXctNjA:HnexHAWyEfJoIaqayzKAifd1LVEj

Malware Config

Targets

    • Target

      SolaraBootstrapper.exe

    • Size

      13KB

    • MD5

      6557bd5240397f026e675afb78544a26

    • SHA1

      839e683bf68703d373b6eac246f19386bb181713

    • SHA256

      a7fecfc225dfdd4e14dcd4d1b4ba1b9f8e4d1984f1cdd8cda3a9987e5d53c239

    • SHA512

      f2399d34898a4c0c201372d2dd084ee66a66a1c3eae949e568421fe7edada697468ef81f4fcab2afd61eaf97bcb98d6ade2d97295e2f674e93116d142e892e97

    • SSDEEP

      192:konexQO0FoAWyEfJkVIaqaLHmr/XKT0ifnTJ1jvVXctNjA:HnexHAWyEfJoIaqayzKAifd1LVEj

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks