Analysis

  • max time kernel
    146s
  • max time network
    148s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241211-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    12-01-2025 12:34

General

  • Target

    fuckingnigger.exe

  • Size

    839KB

  • MD5

    90b4eaaf137d842b7ac6cc0afb511ac0

  • SHA1

    248a78d922c97fdd9a891aef6c6dd9b73b789e4b

  • SHA256

    0f0b46708f833c55f01d652d28bd31b20cebc68956034f5238582a70987456f3

  • SHA512

    c196367ceae1b3b1f56999a61de3f4c60646600759200929cc2c1a1859df79ecbfee92a227ab8a1217e102f1cd429704b9dccdc76847afcafd8a16c520ea5172

  • SSDEEP

    24576:npS04YNEMuExDiU6E5R9s8xY/2l/dmtnIbt+r/:nL4auS+UjfU2TmdIbt+r

Malware Config

Extracted

Family

orcus

C2

5.tcp.eu.ngrok.io

Mutex

9c77ab4d05944a31a7ce608c1298b007

Attributes
  • administration_rights_required

    false

  • anti_debugger

    false

  • anti_tcp_analyzer

    false

  • antivm

    false

  • autostart_method

    1

  • change_creation_date

    false

  • force_installer_administrator_privileges

    false

  • hide_file

    false

  • install

    false

  • installation_folder

    %appdata%\Microsoft\Speech\AudioDriver.exe

  • installservice

    false

  • keylogger_enabled

    false

  • newcreationdate

    01/12/2025 13:34:08

  • plugins

    AgEAAA==

  • reconnect_delay

    10000

  • registry_autostart_keyname

    Audio HD Driver

  • registry_hidden_autostart

    false

  • set_admin_flag

    false

  • tasksch_name

    Audio HD Driver

  • tasksch_request_highest_privileges

    false

  • try_other_autostart_onfail

    false

aes.plain

Signatures

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

  • Orcus family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fuckingnigger.exe
    "C:\Users\Admin\AppData\Local\Temp\fuckingnigger.exe"
    1⤵
    • Checks computer location settings
    • Drops desktop.ini file(s)
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2376
    • C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3864
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --string-annotations=is-enterprise-managed=no --field-trial-handle=5760,i,11057550979060774106,2035785093901894313,262144 --variations-seed-version --mojo-platform-channel-handle=4632 /prefetch:8
    1⤵
      PID:5008
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --string-annotations=is-enterprise-managed=no --field-trial-handle=5620,i,11057550979060774106,2035785093901894313,262144 --variations-seed-version --mojo-platform-channel-handle=5488 /prefetch:8
      1⤵
        PID:3772

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

        Filesize

        839KB

        MD5

        90b4eaaf137d842b7ac6cc0afb511ac0

        SHA1

        248a78d922c97fdd9a891aef6c6dd9b73b789e4b

        SHA256

        0f0b46708f833c55f01d652d28bd31b20cebc68956034f5238582a70987456f3

        SHA512

        c196367ceae1b3b1f56999a61de3f4c60646600759200929cc2c1a1859df79ecbfee92a227ab8a1217e102f1cd429704b9dccdc76847afcafd8a16c520ea5172

      • memory/2376-0-0x0000000074E22000-0x0000000074E23000-memory.dmp

        Filesize

        4KB

      • memory/2376-1-0x0000000074E20000-0x00000000753D1000-memory.dmp

        Filesize

        5.7MB

      • memory/2376-2-0x0000000074E20000-0x00000000753D1000-memory.dmp

        Filesize

        5.7MB

      • memory/2376-7-0x0000000074E20000-0x00000000753D1000-memory.dmp

        Filesize

        5.7MB

      • memory/3864-9-0x0000000074E20000-0x00000000753D1000-memory.dmp

        Filesize

        5.7MB

      • memory/3864-8-0x0000000074E20000-0x00000000753D1000-memory.dmp

        Filesize

        5.7MB

      • memory/3864-12-0x0000000074E20000-0x00000000753D1000-memory.dmp

        Filesize

        5.7MB

      • memory/3864-13-0x0000000074E20000-0x00000000753D1000-memory.dmp

        Filesize

        5.7MB

      • memory/3864-14-0x0000000074E20000-0x00000000753D1000-memory.dmp

        Filesize

        5.7MB