General

  • Target

    d8f7be97512a74a82bc750146d2bd4db8a8b8a0f72f6baca474cbc427ad46f4f

  • Size

    7.5MB

  • Sample

    220714-188hvabebk

  • MD5

    dd9d0dfb0b3d274e3a418084142afcc6

  • SHA1

    ffacc4206b3b84a6d2c105390cf1815e022e02a5

  • SHA256

    d8f7be97512a74a82bc750146d2bd4db8a8b8a0f72f6baca474cbc427ad46f4f

  • SHA512

    d21d35069ddedc02680f8a93f37f4ddb586b0f528bebbe13f1f917de1f9c9e87c79ba29169cd30a65f227c00db52de941d64b43b0727b9809f7f4885a58aa516

Malware Config

Targets

    • Target

      d8f7be97512a74a82bc750146d2bd4db8a8b8a0f72f6baca474cbc427ad46f4f

    • Size

      7.5MB

    • MD5

      dd9d0dfb0b3d274e3a418084142afcc6

    • SHA1

      ffacc4206b3b84a6d2c105390cf1815e022e02a5

    • SHA256

      d8f7be97512a74a82bc750146d2bd4db8a8b8a0f72f6baca474cbc427ad46f4f

    • SHA512

      d21d35069ddedc02680f8a93f37f4ddb586b0f528bebbe13f1f917de1f9c9e87c79ba29169cd30a65f227c00db52de941d64b43b0727b9809f7f4885a58aa516

    • Modifies security service

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

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

    • XMRig Miner payload

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Possible privilege escalation attempt

    • Stops running service(s)

    • 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.

    • Drops startup file

    • Loads dropped DLL

    • Modifies file permissions

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

2
T1031

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

3
T1112

Virtualization/Sandbox Evasion

1
T1497

Impair Defenses

1
T1562

File Permissions Modification

1
T1222

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Impact

Service Stop

1
T1489

Tasks