General

  • Target

    38aaa52db47057a7fe8c24950855ce742ac1de9ffef237552ff4bc4cbfd77b47

  • Size

    259KB

  • Sample

    221123-mwgygaac9t

  • MD5

    d3d3cb9153cabab34fc625d407f4b0db

  • SHA1

    d8d7b55c6f03c540ac6f7703f6046db313671984

  • SHA256

    38aaa52db47057a7fe8c24950855ce742ac1de9ffef237552ff4bc4cbfd77b47

  • SHA512

    6bc0c99cd732872472bc0cd433c15ab40f42108e4b69b68ad92c0c5e755d82e855bbd009a8b13b2a8658ba3c2b7ce575f4f38070c72d0c54d9cb20e1989c9fdd

  • SSDEEP

    6144:b5O8G8WzV2plYAPQSYkF2dKXC2N6cu0SVfdr:0F8e2plZPpYkksXTN9uD

Malware Config

Targets

    • Target

      38aaa52db47057a7fe8c24950855ce742ac1de9ffef237552ff4bc4cbfd77b47

    • Size

      259KB

    • MD5

      d3d3cb9153cabab34fc625d407f4b0db

    • SHA1

      d8d7b55c6f03c540ac6f7703f6046db313671984

    • SHA256

      38aaa52db47057a7fe8c24950855ce742ac1de9ffef237552ff4bc4cbfd77b47

    • SHA512

      6bc0c99cd732872472bc0cd433c15ab40f42108e4b69b68ad92c0c5e755d82e855bbd009a8b13b2a8658ba3c2b7ce575f4f38070c72d0c54d9cb20e1989c9fdd

    • SSDEEP

      6144:b5O8G8WzV2plYAPQSYkF2dKXC2N6cu0SVfdr:0F8e2plZPpYkksXTN9uD

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Identifies Wine through registry keys

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

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

2
T1112

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

5
T1082

Tasks