General

  • Target

    a1c9b78a291901d7046204a1c12a3012753e315f747226ce84b2a1888d08eb99

  • Size

    3.3MB

  • Sample

    220215-jec2eadfhr

  • MD5

    54da56b5f62fedb130a09c3bdc7c8e08

  • SHA1

    1c5f44b45d798534f3d047d8f2596439ba02140c

  • SHA256

    a1c9b78a291901d7046204a1c12a3012753e315f747226ce84b2a1888d08eb99

  • SHA512

    c76c39305b9f216a114b255c3388c40e0981cd2a6a41ff7aab10d3ce346349910a200ad3e16cf570909752d64f726e3b04d2ba07209a207e6311cc3d78d2fefc

Malware Config

Targets

    • Target

      a1c9b78a291901d7046204a1c12a3012753e315f747226ce84b2a1888d08eb99

    • Size

      3.3MB

    • MD5

      54da56b5f62fedb130a09c3bdc7c8e08

    • SHA1

      1c5f44b45d798534f3d047d8f2596439ba02140c

    • SHA256

      a1c9b78a291901d7046204a1c12a3012753e315f747226ce84b2a1888d08eb99

    • SHA512

      c76c39305b9f216a114b255c3388c40e0981cd2a6a41ff7aab10d3ce346349910a200ad3e16cf570909752d64f726e3b04d2ba07209a207e6311cc3d78d2fefc

    • Modifies security service

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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

    • Drops file in System32 directory

    • 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

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Command and Control

Web Service

1
T1102

Tasks