Overview

overview

10

Static

static

10

9e71c5f1b0...52.exe

windows7-x64

10

9e71c5f1b0...52.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    139s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    23-12-2024 01:02

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General

  • Target

    9e71c5f1b0f381b831374387008961b83a25cc0efff03ffcdb856f6e5eeef552.exe

  • Size

    839KB

  • MD5

    810281f7ed20d8e458b303abaebac5f4

  • SHA1

    f9610dc859ed9bff05d480ea2896f2c443b20c6b

  • SHA256

    9e71c5f1b0f381b831374387008961b83a25cc0efff03ffcdb856f6e5eeef552

  • SHA512

    779e618b31edb51cc63daf03502f9501e9146bfcc4b2aad6dbc76550f7d765729aa810b4ca49b29ed61d33fdf3d5e140886124d5f96e3bf3a4420b61bf4fc482

  • SSDEEP

    24576:0FS04YNEMuExDiU6E5R9s8xY/2l/drtnIbt+rj:034auS+UjfU2TrdIbt+r

Score
10/10
orcusdiscoveryratspywarestealer

Malware Config

Extracted

Family

orcus

C2

127.0.0.1

Mutex

9bc5d56285574b61bc452133ab6dc807

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

    12/23/2024 00:01:33

  • 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
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9e71c5f1b0f381b831374387008961b83a25cc0efff03ffcdb856f6e5eeef552.exe
    "C:\Users\Admin\AppData\Local\Temp\9e71c5f1b0f381b831374387008961b83a25cc0efff03ffcdb856f6e5eeef552.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1676
    • 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:2564

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    839KB

    MD5

    810281f7ed20d8e458b303abaebac5f4

    SHA1

    f9610dc859ed9bff05d480ea2896f2c443b20c6b

    SHA256

    9e71c5f1b0f381b831374387008961b83a25cc0efff03ffcdb856f6e5eeef552

    SHA512

    779e618b31edb51cc63daf03502f9501e9146bfcc4b2aad6dbc76550f7d765729aa810b4ca49b29ed61d33fdf3d5e140886124d5f96e3bf3a4420b61bf4fc482

    Download Submit

  • memory/1676-0-0x0000000074B81000-0x0000000074B82000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1676-1-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1676-2-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1676-11-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2564-14-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2564-13-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2564-12-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2564-15-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2564-16-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2564-17-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

    Download