Analysis

  • max time kernel
    114s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2024 11:15

General

  • Target

    db229dfbd1caf9708db3b813e284c7404d392ed0dc3d85e8c102d38f2d52ee34.exe

  • Size

    845KB

  • MD5

    5914a561a8deb98c8f7d28ee41b04de1

  • SHA1

    b6c9563322c724e0c3b77372e1510ccf048ee22f

  • SHA256

    db229dfbd1caf9708db3b813e284c7404d392ed0dc3d85e8c102d38f2d52ee34

  • SHA512

    924bb8dfccaebefdb884cea091676b80db6cd1af5170d6a1b2d682cf3281f9b6375a6098f772795b7b111e3a9f7fc74758811a877435fe4b7daa82206eca2727

  • SSDEEP

    24576:q2S04YNEMuExDiU6E5R9s8xY/2l/dl9Ibt+rah:qS4auS+UjfU2Tl9Ibt+rQ

Malware Config

Extracted

Family

orcus

C2

127.0.0.1

Mutex

55ee5b72d56a4e479be0e6b3ff2cdc70

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 13:42:19

  • plugins

    AgUFyfihswTdIPqEArukcmEdSF06Hw9CAFMAbwBEACAAUAByAG8AdABlAGMAdABpAG8AbgAHAzEALgAwAEEgNABiAGMAYwA0AGMAMwBlADUAOQA0AGYANABiADAAZQA5ADUAMgA4AGIAMABhADAAMAAzADUAMwA1ADYAOQBiAAEFl6aNkQPXkQKOmwKLvFcpr24sKCsVRABpAHMAYQBiAGwAZQAgAFcAZQBiAGMAYQBtACAATABpAGcAaAB0AHMABwMxAC4AMABBIDMAMQA0ADkANABmADIAZgBhADYAZABjADQAMAA5ADEAYgBlAGIAZQBmAGQANgBhADMANwAwADEAYQA4AGIAOQABAAAEBA==

  • 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.

  • Orcus family
  • 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.

  • Suspicious behavior: EnumeratesProcesses 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\db229dfbd1caf9708db3b813e284c7404d392ed0dc3d85e8c102d38f2d52ee34.exe
    "C:\Users\Admin\AppData\Local\Temp\db229dfbd1caf9708db3b813e284c7404d392ed0dc3d85e8c102d38f2d52ee34.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2016
    • 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
      PID:2224

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    845KB

    MD5

    5914a561a8deb98c8f7d28ee41b04de1

    SHA1

    b6c9563322c724e0c3b77372e1510ccf048ee22f

    SHA256

    db229dfbd1caf9708db3b813e284c7404d392ed0dc3d85e8c102d38f2d52ee34

    SHA512

    924bb8dfccaebefdb884cea091676b80db6cd1af5170d6a1b2d682cf3281f9b6375a6098f772795b7b111e3a9f7fc74758811a877435fe4b7daa82206eca2727

  • memory/2016-0-0x0000000074711000-0x0000000074712000-memory.dmp

    Filesize

    4KB

  • memory/2016-1-0x0000000074710000-0x0000000074CBB000-memory.dmp

    Filesize

    5.7MB

  • memory/2016-2-0x0000000074710000-0x0000000074CBB000-memory.dmp

    Filesize

    5.7MB

  • memory/2016-11-0x0000000074710000-0x0000000074CBB000-memory.dmp

    Filesize

    5.7MB

  • memory/2224-12-0x0000000074710000-0x0000000074CBB000-memory.dmp

    Filesize

    5.7MB

  • memory/2224-13-0x0000000074710000-0x0000000074CBB000-memory.dmp

    Filesize

    5.7MB

  • memory/2224-14-0x0000000074710000-0x0000000074CBB000-memory.dmp

    Filesize

    5.7MB

  • memory/2224-15-0x0000000074710000-0x0000000074CBB000-memory.dmp

    Filesize

    5.7MB

  • memory/2224-16-0x0000000074710000-0x0000000074CBB000-memory.dmp

    Filesize

    5.7MB