General

  • Target

    6cae60231a9570614677ff35656b83cc7b17cbdb343287aed1292131e38e98e7

  • Size

    7.4MB

  • Sample

    220617-18d91agaf5

  • MD5

    e4c04bdc1bbd63879e4d49fc9f3dc8c6

  • SHA1

    614b6d1e11ba6b7784528ada9f1b2215a208398c

  • SHA256

    6cae60231a9570614677ff35656b83cc7b17cbdb343287aed1292131e38e98e7

  • SHA512

    7d39623f5ff0313fd0f495e0fcab9c69fa0efae12a24e70c86e91ec9a37cf1dd3a79ffe8f4cdebbebdc33784cd20b9d27480a34b76fd93b8b16792c80648cb0c

Malware Config

Targets

    • Target

      6cae60231a9570614677ff35656b83cc7b17cbdb343287aed1292131e38e98e7

    • Size

      7.4MB

    • MD5

      e4c04bdc1bbd63879e4d49fc9f3dc8c6

    • SHA1

      614b6d1e11ba6b7784528ada9f1b2215a208398c

    • SHA256

      6cae60231a9570614677ff35656b83cc7b17cbdb343287aed1292131e38e98e7

    • SHA512

      7d39623f5ff0313fd0f495e0fcab9c69fa0efae12a24e70c86e91ec9a37cf1dd3a79ffe8f4cdebbebdc33784cd20b9d27480a34b76fd93b8b16792c80648cb0c

    • 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

    • Blocklisted process makes network request

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    • 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

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks