General

  • Target

    fb000db227c1df1a5566aeb4029d98ed934a0a10b1b659d402f64d921f321462

  • Size

    7.4MB

  • Sample

    220716-16p9gsedh5

  • MD5

    40f9273f06567da762a787c34937dc08

  • SHA1

    2e811bb5047a0e7c07c48e037a540f30c301b0ab

  • SHA256

    fb000db227c1df1a5566aeb4029d98ed934a0a10b1b659d402f64d921f321462

  • SHA512

    f3c0e58f4a2e11482f00f0c3bb583dce48eda4f04dfd118323a2b3e2c44999d891cbc4474203046f262b39bca05ade0e58231dcbcfe1df589f9b4875a4804dfd

Malware Config

Targets

    • Target

      fb000db227c1df1a5566aeb4029d98ed934a0a10b1b659d402f64d921f321462

    • Size

      7.4MB

    • MD5

      40f9273f06567da762a787c34937dc08

    • SHA1

      2e811bb5047a0e7c07c48e037a540f30c301b0ab

    • SHA256

      fb000db227c1df1a5566aeb4029d98ed934a0a10b1b659d402f64d921f321462

    • SHA512

      f3c0e58f4a2e11482f00f0c3bb583dce48eda4f04dfd118323a2b3e2c44999d891cbc4474203046f262b39bca05ade0e58231dcbcfe1df589f9b4875a4804dfd

    • 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