Overview

overview

10

Static

static

10

idk.exe

windows10-ltsc 2021-x64

10

idk.exe

windows11-21h2-x64

7

Analysis

  • max time kernel
    100s
  • max time network
    137s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241211-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    11-01-2025 21:36

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General

  • Target

    idk.exe

  • Size

    839KB

  • MD5

    5d671aabccb6b230de6df2eba24e3594

  • SHA1

    539a1e15feaa0c0c382aac0769c3a77967411185

  • SHA256

    aba38569b4a1bba27efd007f663cd797be81581fe1f6c0739f07e1d7af6eaac2

  • SHA512

    cc3c75108fdae769895d45d8e2ef2c4efe08d015cf8fdffeaf0e883c3c79bdaecf0f30087a1cf0b44533e5c80961bbb6e40a1a127b7e6411711cbf6d79c16eef

  • SSDEEP

    24576:8xdS04YNEMuExDiU6E5R9s8xY/2l/d2tnIbt+rs:EP4auS+UjfU2T2dIbt+r

Score
10/10
orcusdiscoveryratspywarestealer

Malware Config

Extracted

Family

orcus

C2

9across-entitled.gl.at.ply.gg

Mutex

c27fc18cc4684b5a8554dcd2b4aab4af

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

    01/11/2025 22:35:49

  • 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.

    ratspywarestealerorcus
  • Orcus family
    orcus
  • 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
  • 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.

    discovery
  • Suspicious behavior: EnumeratesProcesses 24 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\idk.exe
    "C:\Users\Admin\AppData\Local\Temp\idk.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:3540
    • 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:2196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    839KB

    MD5

    5d671aabccb6b230de6df2eba24e3594

    SHA1

    539a1e15feaa0c0c382aac0769c3a77967411185

    SHA256

    aba38569b4a1bba27efd007f663cd797be81581fe1f6c0739f07e1d7af6eaac2

    SHA512

    cc3c75108fdae769895d45d8e2ef2c4efe08d015cf8fdffeaf0e883c3c79bdaecf0f30087a1cf0b44533e5c80961bbb6e40a1a127b7e6411711cbf6d79c16eef

    Download Submit

  • memory/2196-7-0x00000000753F0000-0x00000000759A1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2196-9-0x00000000753F0000-0x00000000759A1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2196-10-0x00000000753F0000-0x00000000759A1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2196-11-0x00000000753F0000-0x00000000759A1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2196-12-0x00000000753F0000-0x00000000759A1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3540-0-0x00000000753F2000-0x00000000753F3000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3540-1-0x00000000753F0000-0x00000000759A1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3540-2-0x00000000753F0000-0x00000000759A1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3540-8-0x00000000753F0000-0x00000000759A1000-memory.dmp

    Filesize

    5.7MB

    Download