General

  • Target

    75e9740f86c60769a9b514bee85957a98e4e0127d64e60066be264b40e556f51

  • Size

    6.3MB

  • Sample

    240526-j3ym1sch97

  • MD5

    a40eb5ef478792f602f53f3f7dc9974b

  • SHA1

    0b4980f0451167eecbc4c079ec7e127df6546951

  • SHA256

    75e9740f86c60769a9b514bee85957a98e4e0127d64e60066be264b40e556f51

  • SHA512

    e8428e3a1e12f55885ad83621fff188dc03bdd9c12495129a35081d895871ba6ff13295f642bf0037407b4e655c1d3bd9004c85f9387913191003b9dbd12805d

  • SSDEEP

    196608:J3mtkG3tZ51kRLZWbvti90rW2Uo5hNK7sJkSJU:JSrtFkRoAirJ5vK7IkP

Malware Config

Targets

    • Target

      75e9740f86c60769a9b514bee85957a98e4e0127d64e60066be264b40e556f51

    • Size

      6.3MB

    • MD5

      a40eb5ef478792f602f53f3f7dc9974b

    • SHA1

      0b4980f0451167eecbc4c079ec7e127df6546951

    • SHA256

      75e9740f86c60769a9b514bee85957a98e4e0127d64e60066be264b40e556f51

    • SHA512

      e8428e3a1e12f55885ad83621fff188dc03bdd9c12495129a35081d895871ba6ff13295f642bf0037407b4e655c1d3bd9004c85f9387913191003b9dbd12805d

    • SSDEEP

      196608:J3mtkG3tZ51kRLZWbvti90rW2Uo5hNK7sJkSJU:JSrtFkRoAirJ5vK7IkP

    • 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