Overview

overview

10

Static

static

10

idk.exe

windows10-ltsc 2021-x64

10

idk.exe

windows11-21h2-x64

7

Analysis

  • max time kernel
    145s
  • max time network
    153s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    04-01-2025 13:41

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    idk.exe

  • Size

    839KB

  • MD5

    6d7e70d9185dd0c6cc93dd959a9dab39

  • SHA1

    589c0b18e405d5118bc0385b900eb0ff7d1f3c91

  • SHA256

    73d1ca809ef518e57e67d23677138824ef0ab6d175ba87fdb88f5f5dd4fb34f3

  • SHA512

    dfbd86a6e84a35ced33fe97e8c242a4c42429004dc16c68eac74842acec149d8d758530756713b592f3efd72d774204528abe2c2e405fc5fc25c692879201e2b

  • SSDEEP

    24576:fmIS04YNEMuExDiU6E5R9s8xY/2l/detnIbt+rE:+Q4auS+UjfU2TedIbt+r

Score
10/10
orcusdiscoveryratspywarestealer

Malware Config

Extracted

Family

orcus

C2

7.tcp.eu.ngrok.io14371

Mutex

f6f129e254704a8e96e33a6eea7c6ac9

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

    01/04/2025 14:40:42

  • 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 45 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:1880
    • 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:1168

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    839KB

    MD5

    6d7e70d9185dd0c6cc93dd959a9dab39

    SHA1

    589c0b18e405d5118bc0385b900eb0ff7d1f3c91

    SHA256

    73d1ca809ef518e57e67d23677138824ef0ab6d175ba87fdb88f5f5dd4fb34f3

    SHA512

    dfbd86a6e84a35ced33fe97e8c242a4c42429004dc16c68eac74842acec149d8d758530756713b592f3efd72d774204528abe2c2e405fc5fc25c692879201e2b

    Download Submit

  • memory/1168-7-0x0000000074E50000-0x0000000075401000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1168-9-0x0000000074E50000-0x0000000075401000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1168-10-0x0000000074E50000-0x0000000075401000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1880-0-0x0000000074E52000-0x0000000074E53000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1880-1-0x0000000074E50000-0x0000000075401000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1880-2-0x0000000074E50000-0x0000000075401000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1880-8-0x0000000074E50000-0x0000000075401000-memory.dmp

    Filesize

    5.7MB

    Download