General

  • Target

    550edaa6fb64a4a7eec8c2bd26dbde31a9cf47247e092dcfa0cf1c1f5fd5ec80

  • Size

    3.5MB

  • Sample

    220725-vpnrfaffb7

  • MD5

    57324b12506033d137a0ad82d2499c81

  • SHA1

    6664dda28b289251ab23f16f7955f97978208fa7

  • SHA256

    550edaa6fb64a4a7eec8c2bd26dbde31a9cf47247e092dcfa0cf1c1f5fd5ec80

  • SHA512

    d514ff8dda74f4af8645ab950b3ff6bd4e0a9432b9614a9fef4953a56b2bbd6535556ef9b6129df1099b7c93cafb682ad50db773ea6bc7db48279165b67fe2d1

Malware Config

Targets

    • Target

      550edaa6fb64a4a7eec8c2bd26dbde31a9cf47247e092dcfa0cf1c1f5fd5ec80

    • Size

      3.5MB

    • MD5

      57324b12506033d137a0ad82d2499c81

    • SHA1

      6664dda28b289251ab23f16f7955f97978208fa7

    • SHA256

      550edaa6fb64a4a7eec8c2bd26dbde31a9cf47247e092dcfa0cf1c1f5fd5ec80

    • SHA512

      d514ff8dda74f4af8645ab950b3ff6bd4e0a9432b9614a9fef4953a56b2bbd6535556ef9b6129df1099b7c93cafb682ad50db773ea6bc7db48279165b67fe2d1

    • Modifies security service

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

    • Modifies Windows Firewall

    • 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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

3
T1112

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Command and Control

Web Service

1
T1102

Tasks