General

  • Target

    f1957c24195b5af57e83edf1fd8b28644179313463edc3714123ac2b76e351c9

  • Size

    188KB

  • Sample

    221125-qpca7aeb61

  • MD5

    efd70fbd05b1cb9b4c94f059ba8780fe

  • SHA1

    40d3d390c5bcf8a54334911e9f3e9fdf6e084602

  • SHA256

    f1957c24195b5af57e83edf1fd8b28644179313463edc3714123ac2b76e351c9

  • SHA512

    5b53bf881fec9e598862d1cc314f3354fc38f970c1f8c3483703c7bd8b8b50a08d2f6e8b191962d165c773507d73840caa111957a72f10b290768d99addf3eaa

  • SSDEEP

    3072:/QIURTXJA7ztTs53PtyEvRYelOEmrnCHAuiOo/KDhtoDAtAq+i:/sa7ztTsZPtyRelOEmrnCgSo/KDhWDSN

Malware Config

Targets

    • Target

      f1957c24195b5af57e83edf1fd8b28644179313463edc3714123ac2b76e351c9

    • Size

      188KB

    • MD5

      efd70fbd05b1cb9b4c94f059ba8780fe

    • SHA1

      40d3d390c5bcf8a54334911e9f3e9fdf6e084602

    • SHA256

      f1957c24195b5af57e83edf1fd8b28644179313463edc3714123ac2b76e351c9

    • SHA512

      5b53bf881fec9e598862d1cc314f3354fc38f970c1f8c3483703c7bd8b8b50a08d2f6e8b191962d165c773507d73840caa111957a72f10b290768d99addf3eaa

    • SSDEEP

      3072:/QIURTXJA7ztTs53PtyEvRYelOEmrnCHAuiOo/KDhtoDAtAq+i:/sa7ztTsZPtyRelOEmrnCgSo/KDhWDSN

    • 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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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

3
T1112

Install Root Certificate

1
T1130

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Tasks