General

  • Target

    e368dd29cf385103ed8df8ef9ff221be7c0f81ac56efffdad485bb141bbb9dec

  • Size

    7.4MB

  • Sample

    220627-16d68afch3

  • MD5

    34719a80e9cca827371d5f1e44f10168

  • SHA1

    3ea872bd581ce47505a312d74f6b0e897202d021

  • SHA256

    e368dd29cf385103ed8df8ef9ff221be7c0f81ac56efffdad485bb141bbb9dec

  • SHA512

    2f96ffcb8a45d7dcb525c952e63cdd466ed60eb6bc624756f4c9d815ea40c2fe14da9e4905f7494db24d02c83354b8759adf677ea3c75b986626a376b0a53acf

Malware Config

Targets

    • Target

      e368dd29cf385103ed8df8ef9ff221be7c0f81ac56efffdad485bb141bbb9dec

    • Size

      7.4MB

    • MD5

      34719a80e9cca827371d5f1e44f10168

    • SHA1

      3ea872bd581ce47505a312d74f6b0e897202d021

    • SHA256

      e368dd29cf385103ed8df8ef9ff221be7c0f81ac56efffdad485bb141bbb9dec

    • SHA512

      2f96ffcb8a45d7dcb525c952e63cdd466ed60eb6bc624756f4c9d815ea40c2fe14da9e4905f7494db24d02c83354b8759adf677ea3c75b986626a376b0a53acf

    • 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