General

  • Target

    cd276e9935518599bfc3ad950c9e1a40692b68996f2af9873a654839af47a6ae

  • Size

    7.4MB

  • Sample

    220701-18zwpsbceq

  • MD5

    990fa1c874827201fa0b65bfe496600e

  • SHA1

    1b02bf52c8b055bf8e03e8fb4219a012e3aba649

  • SHA256

    cd276e9935518599bfc3ad950c9e1a40692b68996f2af9873a654839af47a6ae

  • SHA512

    b949ed35fff432e3dc4833ec9a94bb39c947ca4b497a9c2cf8a291e3baaef840f05d4abfd423df72a467ed598a1fae431c46664b2b009b7a221d87974df7ce82

Malware Config

Targets

    • Target

      cd276e9935518599bfc3ad950c9e1a40692b68996f2af9873a654839af47a6ae

    • Size

      7.4MB

    • MD5

      990fa1c874827201fa0b65bfe496600e

    • SHA1

      1b02bf52c8b055bf8e03e8fb4219a012e3aba649

    • SHA256

      cd276e9935518599bfc3ad950c9e1a40692b68996f2af9873a654839af47a6ae

    • SHA512

      b949ed35fff432e3dc4833ec9a94bb39c947ca4b497a9c2cf8a291e3baaef840f05d4abfd423df72a467ed598a1fae431c46664b2b009b7a221d87974df7ce82

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • 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