General

  • Target

    81b4b30e724c560ae1d6fd45c900c314ed5fc295fa86d86c568e07f767953832

  • Size

    2.7MB

  • Sample

    220111-ya5yyshbgj

  • MD5

    7ba265564f727b1ef0e3b0e493e8eb50

  • SHA1

    7b9e7ca3e4d0dd8d521ded6fdd7b769747158e23

  • SHA256

    81b4b30e724c560ae1d6fd45c900c314ed5fc295fa86d86c568e07f767953832

  • SHA512

    d648881cb8b77dc29d1d8380ae8db63aec7ea1b4e5e90bd8299d2bf51613aee509114e3f9eba7250466b430ce1a42c2f16869634417c34d612bbb85c7732f158

Malware Config

Targets

    • Target

      81b4b30e724c560ae1d6fd45c900c314ed5fc295fa86d86c568e07f767953832

    • Size

      2.7MB

    • MD5

      7ba265564f727b1ef0e3b0e493e8eb50

    • SHA1

      7b9e7ca3e4d0dd8d521ded6fdd7b769747158e23

    • SHA256

      81b4b30e724c560ae1d6fd45c900c314ed5fc295fa86d86c568e07f767953832

    • SHA512

      d648881cb8b77dc29d1d8380ae8db63aec7ea1b4e5e90bd8299d2bf51613aee509114e3f9eba7250466b430ce1a42c2f16869634417c34d612bbb85c7732f158

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

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Tasks