General

  • Target

    3d6bfc36574e173483be03d4434274fef234ff1a35309d55703849484a5fda01

  • Size

    6.3MB

  • Sample

    240526-grkwnshc6z

  • MD5

    044dc86e4920f544832a95534cb34174

  • SHA1

    52ba7daf3bd0d12231b36eaaceb76c47dfe2b4fd

  • SHA256

    3d6bfc36574e173483be03d4434274fef234ff1a35309d55703849484a5fda01

  • SHA512

    3a9e58bb17f8f8c0bc3bd39ca0e179bfbde43b6f397707ec6f53f88b4fbd1d42fc92445a5954481c3ea839fff5d76553eef3c34ae8f90330daaca52b4ef9257a

  • SSDEEP

    98304:4fOdhOLH9b+wvXLfW3NMLrNrv3NX0V8ZkJcK/JrpzxeWSbYb3fXaGStn:4fWhOz9CEXLENMLVN0ih0tzxeW6Ual

Malware Config

Targets

    • Target

      3d6bfc36574e173483be03d4434274fef234ff1a35309d55703849484a5fda01

    • Size

      6.3MB

    • MD5

      044dc86e4920f544832a95534cb34174

    • SHA1

      52ba7daf3bd0d12231b36eaaceb76c47dfe2b4fd

    • SHA256

      3d6bfc36574e173483be03d4434274fef234ff1a35309d55703849484a5fda01

    • SHA512

      3a9e58bb17f8f8c0bc3bd39ca0e179bfbde43b6f397707ec6f53f88b4fbd1d42fc92445a5954481c3ea839fff5d76553eef3c34ae8f90330daaca52b4ef9257a

    • SSDEEP

      98304:4fOdhOLH9b+wvXLfW3NMLrNrv3NX0V8ZkJcK/JrpzxeWSbYb3fXaGStn:4fWhOz9CEXLENMLVN0ih0tzxeW6Ual

    • 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 v13

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Tasks