General

  • Target

    a985e6243988c8f0d6efc9b9688517a1da5ea8b88dab77587865ff60fac98196

  • Size

    3.1MB

  • Sample

    220215-h357esdefl

  • MD5

    a04867c5f9d320599b65764601f975e2

  • SHA1

    6a8377a8b63d8dbaa32c8595c899694a86c4a527

  • SHA256

    a985e6243988c8f0d6efc9b9688517a1da5ea8b88dab77587865ff60fac98196

  • SHA512

    c908c0436a6d50a41f26e701f96d3e85fc23ae44c98ef747d6e21d50239c8d41930fea7aefd9178a07bd5372f180a0db0261252f4f7625660a158d207fc0c2f4

Malware Config

Targets

    • Target

      a985e6243988c8f0d6efc9b9688517a1da5ea8b88dab77587865ff60fac98196

    • Size

      3.1MB

    • MD5

      a04867c5f9d320599b65764601f975e2

    • SHA1

      6a8377a8b63d8dbaa32c8595c899694a86c4a527

    • SHA256

      a985e6243988c8f0d6efc9b9688517a1da5ea8b88dab77587865ff60fac98196

    • SHA512

      c908c0436a6d50a41f26e701f96d3e85fc23ae44c98ef747d6e21d50239c8d41930fea7aefd9178a07bd5372f180a0db0261252f4f7625660a158d207fc0c2f4

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

    • Blocklisted process makes network request

    • Executes dropped EXE

    • 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.

    • Loads dropped DLL

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Command and Control

Web Service

1
T1102

Tasks