General

  • Target

    98c4ede3a11f799ed2b5c1aa7d781b1262243d72be4397e3f4da08ad17a0a8da

  • Size

    4.1MB

  • Sample

    221123-zedkyacf53

  • MD5

    3adb613faf783e07c2f2e2a8e7a65c35

  • SHA1

    c87b757c8dc7826b74305f0c8c187731694875be

  • SHA256

    98c4ede3a11f799ed2b5c1aa7d781b1262243d72be4397e3f4da08ad17a0a8da

  • SHA512

    89da4e5fe0c22736be1f241ec5bec83d65d36349eda8f2bc8b6343c00eb89c7f447ff22d0375f28ce53ef5158647a505292dbcc507d4b959265b4844b53ad9e8

  • SSDEEP

    98304:X3hMOAOfHJv3a+2T8xZCoskgz2bmVR0m3zqWGviO7jP:Xxn7Va+ZTBs/X3z3QJP

Malware Config

Targets

    • Target

      98c4ede3a11f799ed2b5c1aa7d781b1262243d72be4397e3f4da08ad17a0a8da

    • Size

      4.1MB

    • MD5

      3adb613faf783e07c2f2e2a8e7a65c35

    • SHA1

      c87b757c8dc7826b74305f0c8c187731694875be

    • SHA256

      98c4ede3a11f799ed2b5c1aa7d781b1262243d72be4397e3f4da08ad17a0a8da

    • SHA512

      89da4e5fe0c22736be1f241ec5bec83d65d36349eda8f2bc8b6343c00eb89c7f447ff22d0375f28ce53ef5158647a505292dbcc507d4b959265b4844b53ad9e8

    • SSDEEP

      98304:X3hMOAOfHJv3a+2T8xZCoskgz2bmVR0m3zqWGviO7jP:Xxn7Va+ZTBs/X3z3QJP

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

    • Checks BIOS information in registry

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

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Checks whether UAC is enabled

    • Writes to the Master Boot Record (MBR)

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Bootkit

1
T1067

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Tasks