Overview

overview

10

Static

static

10

8f5a080d71...7b.exe

windows7-x64

10

8f5a080d71...7b.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    147s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-01-2025 01:01

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General

  • Target

    8f5a080d71b52c8cc1f62b997ba880b0c92e4f9beb91b32b067f868fce91837b.exe

  • Size

    839KB

  • MD5

    0dcfd999de97c5a2547ffac4f17a9202

  • SHA1

    e4c3b1f29ce47e4fb509c856302ed922998b66bb

  • SHA256

    8f5a080d71b52c8cc1f62b997ba880b0c92e4f9beb91b32b067f868fce91837b

  • SHA512

    04d01ea3afff1aa6e14a996e0e9c3a0a000eb849be82462c09115adb1ff2d403375bd7c97bf03522c145c2cdd087b17d87146c1ee6d5fbf3262bc0b7a1e8ad37

  • SSDEEP

    24576:UFS04YNEMuExDiU6E5R9s8xY/2l/drtnIbt+r0:U34auS+UjfU2TrdIbt+r

Score
10/10
orcusdiscoveryratspywarestealer

Malware Config

Extracted

Family

orcus

C2

127.0.0.1

Mutex

f46486724ee44d8381507802110c8b98

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

    01/15/2025 21:24:35

  • 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 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\8f5a080d71b52c8cc1f62b997ba880b0c92e4f9beb91b32b067f868fce91837b.exe
    "C:\Users\Admin\AppData\Local\Temp\8f5a080d71b52c8cc1f62b997ba880b0c92e4f9beb91b32b067f868fce91837b.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2688
    • 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:1600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    839KB

    MD5

    0dcfd999de97c5a2547ffac4f17a9202

    SHA1

    e4c3b1f29ce47e4fb509c856302ed922998b66bb

    SHA256

    8f5a080d71b52c8cc1f62b997ba880b0c92e4f9beb91b32b067f868fce91837b

    SHA512

    04d01ea3afff1aa6e14a996e0e9c3a0a000eb849be82462c09115adb1ff2d403375bd7c97bf03522c145c2cdd087b17d87146c1ee6d5fbf3262bc0b7a1e8ad37

    Download Submit

  • memory/1600-12-0x0000000074980000-0x0000000074F2B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1600-14-0x0000000074980000-0x0000000074F2B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1600-13-0x0000000074980000-0x0000000074F2B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1600-15-0x0000000074980000-0x0000000074F2B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1600-16-0x0000000074980000-0x0000000074F2B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1600-17-0x0000000074980000-0x0000000074F2B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2688-0-0x0000000074981000-0x0000000074982000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2688-1-0x0000000074980000-0x0000000074F2B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2688-2-0x0000000074980000-0x0000000074F2B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2688-11-0x0000000074980000-0x0000000074F2B000-memory.dmp

    Filesize

    5.7MB

    Download