Overview

overview

10

Static

static

10

4.5.3.exe

windows7-x64

10

4.5.3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-08-2024 17:26

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General

  • Target

    4.5.3.exe

  • Size

    840KB

  • MD5

    2de8bf57c56a51f996da5623b09f2274

  • SHA1

    e41552b27b43e9396ea5536264a64f91986a86c1

  • SHA256

    efc4b0b5be3a3c10ed7fecff17f40139013d7c015e51f46f577ef5406ed7333d

  • SHA512

    95ed140a45565a0d60700bb010ef3da69d1b91c20a369b682f3e7cca0e2f210213d19b52753dd7ba4bbf06b6e2ff75477cdf53e944f0aa2e9648475b8d782952

  • SSDEEP

    24576:AyPS04YNEMuExDiU6E5R9s8xY/2l/dL5Ibt+rt:Ayl4auS+UjfU2TFIbt+r

Score
10/10
orcusdiscoveryratspywarestealer

Malware Config

Extracted

Family

orcus

C2

192.168.10.8

91.92.247.123

tech11.ddns.net

tech22.ddns.net
Mutex

ec3750d27df2422f9771480c02d90266

Attributes
  • administration_rights_required

    false

  • anti_debugger

    false

  • anti_tcp_analyzer

    false

  • antivm

    false

  • autostart_method

    2

  • 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

    04/04/2023 06:41:34

  • plugins

    AgEAAA==

  • reconnect_delay

    10000

  • 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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 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 39 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4.5.3.exe
    "C:\Users\Admin\AppData\Local\Temp\4.5.3.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2464
    • 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
      • Suspicious use of SetWindowsHookEx
      PID:4752

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    840KB

    MD5

    2de8bf57c56a51f996da5623b09f2274

    SHA1

    e41552b27b43e9396ea5536264a64f91986a86c1

    SHA256

    efc4b0b5be3a3c10ed7fecff17f40139013d7c015e51f46f577ef5406ed7333d

    SHA512

    95ed140a45565a0d60700bb010ef3da69d1b91c20a369b682f3e7cca0e2f210213d19b52753dd7ba4bbf06b6e2ff75477cdf53e944f0aa2e9648475b8d782952

    Download Submit

  • memory/2464-11-0x0000000005820000-0x0000000005838000-memory.dmp

    Filesize

    96KB

    Download

  • memory/2464-5-0x0000000005730000-0x00000000057C2000-memory.dmp

    Filesize

    584KB

    Download

  • memory/2464-1-0x00000000007A0000-0x0000000000878000-memory.dmp

    Filesize

    864KB

    Download

  • memory/2464-4-0x0000000005B40000-0x00000000060E4000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/2464-23-0x00000000744C0000-0x0000000074C70000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/2464-6-0x0000000005690000-0x00000000056DC000-memory.dmp

    Filesize

    304KB

    Download

  • memory/2464-10-0x00000000057D0000-0x000000000581E000-memory.dmp

    Filesize

    312KB

    Download

  • memory/2464-0-0x00000000744CE000-0x00000000744CF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2464-3-0x00000000744C0000-0x0000000074C70000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/2464-2-0x0000000002C60000-0x0000000002C6A000-memory.dmp

    Filesize

    40KB

    Download

  • memory/4752-24-0x00000000744C0000-0x0000000074C70000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4752-25-0x00000000744C0000-0x0000000074C70000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4752-26-0x00000000050E0000-0x00000000050F8000-memory.dmp

    Filesize

    96KB

    Download

  • memory/4752-27-0x00000000058E0000-0x0000000005AA2000-memory.dmp

    Filesize

    1.8MB

    Download

  • memory/4752-28-0x0000000005850000-0x0000000005860000-memory.dmp

    Filesize

    64KB

    Download

  • memory/4752-29-0x0000000005E90000-0x0000000005E9A000-memory.dmp

    Filesize

    40KB

    Download

  • memory/4752-30-0x00000000744C0000-0x0000000074C70000-memory.dmp

    Filesize

    7.7MB

    Download