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General

  • Target

    Ghost_Free.7z

  • Size

    3.9MB

  • Sample

    250228-m3b1ssysfz

  • MD5

    b2f7e7a1fdb28a52a36955991b1998bf

  • SHA1

    cde47e14410d20157b96242bd4f15a510efcb6e9

  • SHA256

    be95be6a9f532476175b14dead7591028f0c48d589f253434418074188c8e67d

  • SHA512

    05ff8ea00c5ab87f960019b40af14230adaee5d5ee65940830a97ba7bccc672f82a974769e6796408a87e93dbd9000594089773c06aa41dbbea868d749cb5573

  • SSDEEP

    98304:Ue/t5JorCD69Hu1xgidyL0DBCwKy7o2iAo+q8Odr2:PZor06Z6gLQX7RUFr2

Malware Config

Targets

    • Target

      Ghost_Free.7z

    • Size

      3.9MB

    • MD5

      b2f7e7a1fdb28a52a36955991b1998bf

    • SHA1

      cde47e14410d20157b96242bd4f15a510efcb6e9

    • SHA256

      be95be6a9f532476175b14dead7591028f0c48d589f253434418074188c8e67d

    • SHA512

      05ff8ea00c5ab87f960019b40af14230adaee5d5ee65940830a97ba7bccc672f82a974769e6796408a87e93dbd9000594089773c06aa41dbbea868d749cb5573

    • SSDEEP

      98304:Ue/t5JorCD69Hu1xgidyL0DBCwKy7o2iAo+q8Odr2:PZor06Z6gLQX7RUFr2

    • Cerber

      Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

    • Cerber family

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

    • Modifies Windows Firewall

    • Checks BIOS information in registry

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

    • Deletes itself

    • Executes dropped EXE

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Checks system information in the registry

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks