General

  • Target

    Windows10(new).exe

  • Size

    35.2MB

  • Sample

    220706-fkwh6aahf6

  • MD5

    fb1e056fbb0bba8fe0404303eff98e3d

  • SHA1

    02305765a222d06ea1917a19fc33f9c42f83d430

  • SHA256

    1efa100a43e2d1cb8da079b0e94e910ed539eeb83fffe7e365d9008719ca1354

  • SHA512

    46e88b8f23467a7bdcf9c2f9c05817b77b9ba3f5d0ec4aae02a75309630c0cadbdd3537f0c0d113413cd5e63084ebd70b2a546692ff9297fe92e5732e8eece4a

Malware Config

Targets

    • Target

      Windows10(new).exe

    • Size

      35.2MB

    • MD5

      fb1e056fbb0bba8fe0404303eff98e3d

    • SHA1

      02305765a222d06ea1917a19fc33f9c42f83d430

    • SHA256

      1efa100a43e2d1cb8da079b0e94e910ed539eeb83fffe7e365d9008719ca1354

    • SHA512

      46e88b8f23467a7bdcf9c2f9c05817b77b9ba3f5d0ec4aae02a75309630c0cadbdd3537f0c0d113413cd5e63084ebd70b2a546692ff9297fe92e5732e8eece4a

    • Modifies system executable filetype association

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

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

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Disables use of System Restore points

    • Executes dropped EXE

    • Modifies Installed Components in the registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • 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

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

2
T1060

Bootkit

1
T1067

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

4
T1112

Virtualization/Sandbox Evasion

2
T1497

Discovery

Query Registry

7
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

2
T1120

Impact

Inhibit System Recovery

1
T1490

Tasks