General

  • Target

    2a6e8c82e7a5129140b7f3b58dfe26e8e6035017397191286a417fdbd1e0aeb5

  • Size

    3.9MB

  • Sample

    240526-k6ws9seb27

  • MD5

    05610aaec5183a6b37fb1b0177ef3110

  • SHA1

    42ff8165d48ebd81e449c90bfeaf808366ca9745

  • SHA256

    2a6e8c82e7a5129140b7f3b58dfe26e8e6035017397191286a417fdbd1e0aeb5

  • SHA512

    59269b02ca6eaba7ad9895a94ceb7278f51b7a90f9aba5209b67865a477c4cc09d4724dbb2054209a8078c630de64f79039994011cf6c84009a586af19cff146

  • SSDEEP

    98304:8iJM4l7QGx7D9q6j/IrxIdowPAnY41w/9v65VinbzJNB7I:8x4icCxNY41w/9v6biLd

Malware Config

Targets

    • Target

      2a6e8c82e7a5129140b7f3b58dfe26e8e6035017397191286a417fdbd1e0aeb5

    • Size

      3.9MB

    • MD5

      05610aaec5183a6b37fb1b0177ef3110

    • SHA1

      42ff8165d48ebd81e449c90bfeaf808366ca9745

    • SHA256

      2a6e8c82e7a5129140b7f3b58dfe26e8e6035017397191286a417fdbd1e0aeb5

    • SHA512

      59269b02ca6eaba7ad9895a94ceb7278f51b7a90f9aba5209b67865a477c4cc09d4724dbb2054209a8078c630de64f79039994011cf6c84009a586af19cff146

    • SSDEEP

      98304:8iJM4l7QGx7D9q6j/IrxIdowPAnY41w/9v65VinbzJNB7I:8x4icCxNY41w/9v6biLd

    • Blackmoon, KrBanker

      Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

    • Detect Blackmoon payload

    • 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.

    • Loads dropped DLL

    • 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

1
T1082

Tasks