Overview

overview

10

Static

static

10

138b682d76...6f.exe

windows7-x64

10

138b682d76...6f.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-01-2025 01:28

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General

  • Target

    138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe

  • Size

    845KB

  • MD5

    87763ae22a66ea3276fe9b14d65725ea

  • SHA1

    908228d0bba0351a4c4bf25ab4ae2b41ed520f7d

  • SHA256

    138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f

  • SHA512

    fdf7ba8ebc84b8cb9e3fdaf34d5c035d3456cdc671a6cf0ea1774dc73f4931d95fcdbf25605991028f5236097af6484e2aa9679baf580c15ea982e14f31f30e4

  • SSDEEP

    24576:FvS04YNEMuExDiU6E5R9s8xY/2l/dHzIbt+ra:FF4auS+UjfU2THzIbt+r

Score
10/10
orcusdiscoveryratspywarestealer

Malware Config

Extracted

Family

orcus

C2

5.tcp.eu.ngrok.io

Mutex

c1334eeff3214c87b1304d7c8b23eddd

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

    01/13/2025 10:04:41

  • plugins

    AgUFyfihswTdIPqEArukcmEdSF06Hw9CAFMAbwBEACAAUAByAG8AdABlAGMAdABpAG8AbgAHAzEALgAwAEEgYwAyADUAOAA0ADYAOAA1AGQAZQBlAGEANABkAGMANAA4ADcANQBmAGYAZABjADgAMQA2AGEAOAAxADMAMAAzAAEFl6aNkQPXkQKOmwKLvFcpr24sKCsVRABpAHMAYQBiAGwAZQAgAFcAZQBiAGMAYQBtACAATABpAGcAaAB0AHMABwMxAC4AMABBIGYAMQA5ADEAMwA3ADAAZgBhAGEAMwA4ADQANwBmADIAYgA2AGEAYwBiADIAMwA1ADgAZAA3AGQAOAA1ADQAOQABAAAEBA==

  • 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
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 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 42 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe
    "C:\Users\Admin\AppData\Local\Temp\138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1836
    • 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:588

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    845KB

    MD5

    87763ae22a66ea3276fe9b14d65725ea

    SHA1

    908228d0bba0351a4c4bf25ab4ae2b41ed520f7d

    SHA256

    138b682d76b3ec1a4a84406c3f6a0ee2da29bec0ae6feb6c05f7b6c8eb98b96f

    SHA512

    fdf7ba8ebc84b8cb9e3fdaf34d5c035d3456cdc671a6cf0ea1774dc73f4931d95fcdbf25605991028f5236097af6484e2aa9679baf580c15ea982e14f31f30e4

    Download Submit

  • memory/588-14-0x0000000074240000-0x00000000747EB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/588-13-0x0000000074240000-0x00000000747EB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/588-12-0x0000000074240000-0x00000000747EB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/588-15-0x0000000074240000-0x00000000747EB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/588-16-0x0000000074240000-0x00000000747EB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1836-11-0x0000000074240000-0x00000000747EB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1836-2-0x0000000074240000-0x00000000747EB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1836-1-0x0000000074240000-0x00000000747EB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1836-0-0x0000000074241000-0x0000000074242000-memory.dmp

    Filesize

    4KB

    Download