Resubmissions

15/01/2025, 22:02

250115-1xz3bsxrdq 8

15/01/2025, 21:45

250115-1l2f1sxmap 8

General

  • Target

    OfficeSetup x64.rar

  • Size

    2.5MB

  • Sample

    250115-1l2f1sxmap

  • MD5

    41386acea3c5dde104319b052a1ee7ee

  • SHA1

    72b0f09edcd417b2ef5a7c6a99908e2893140855

  • SHA256

    0f3df200515ebc31fb750128c684e262683506bbe7521d5bb8a54600cc6c4114

  • SHA512

    b2a7920c34daad08faf82d9d0bb068aa35cd45bcf3c088b85429e177619fb3c36f6abd7f593e1bd41c22aa3533f1ad43a8f07ec7aaa6134298787cb1e3ac91be

  • SSDEEP

    49152:WTbKVCGyA05E0zQ9zK+YkAX6LZsU4/6jZo8hOX1FnKHYVeifqXCZEa4:W3KEc0a0zQszSZo8hSFnhfqSZv4

Malware Config

Targets

    • Target

      OfficeSetup x64.rar

    • Size

      2.5MB

    • MD5

      41386acea3c5dde104319b052a1ee7ee

    • SHA1

      72b0f09edcd417b2ef5a7c6a99908e2893140855

    • SHA256

      0f3df200515ebc31fb750128c684e262683506bbe7521d5bb8a54600cc6c4114

    • SHA512

      b2a7920c34daad08faf82d9d0bb068aa35cd45bcf3c088b85429e177619fb3c36f6abd7f593e1bd41c22aa3533f1ad43a8f07ec7aaa6134298787cb1e3ac91be

    • SSDEEP

      49152:WTbKVCGyA05E0zQ9zK+YkAX6LZsU4/6jZo8hOX1FnKHYVeifqXCZEa4:W3KEc0a0zQszSZo8hSFnhfqSZv4

    • Event Triggered Execution: Image File Execution Options Injection

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

    • Suspicious Office macro

      Office document equipped with 4.0 macros.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Indicator Removal: Clear Persistence

      remove IFEO.

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks