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
    06-11-2024 01:31

General

  • Target

    bd0dfbc35aa1070260c273abc94e498b75330743e8113aa2de4cd085003161b8.exe

  • Size

    882KB

  • MD5

    4127fc13c49cccdac5e9d33821e92c7d

  • SHA1

    d401ac808c9db8f1000d7002849c5c7fc067f71d

  • SHA256

    bd0dfbc35aa1070260c273abc94e498b75330743e8113aa2de4cd085003161b8

  • SHA512

    954db6ce053d4cd4553855958cb6323a30b58ee7e5ecd91671458038e78bcd7dfd9e08ffa4c0a55351b6c4827ed177f40fdf5f01e422db0232fd243facbbbf82

  • SSDEEP

    24576:oFS04YNEMuExDiU6E5R9s8xY/2l/dLOIbt+rA0E:o34auS+UjfU2TLOIbt+rw

Malware Config

Extracted

Family

orcus

C2

3forms-sticky.gl.at.ply.gg

Mutex

25e8d916c03346ab8083243dfb3d068a

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

    11/03/2024 15:11:24

  • plugins

    AgUFl6aNkQPXkQKOmwKLvFcpr24sKCsVRABpAHMAYQBiAGwAZQAgAFcAZQBiAGMAYQBtACAATABpAGcAaAB0AHMABwMxAC4AMABBIGQANQAzAGQAZgBlAGYAMwBlADgAYQBjADQAZAA0ADYAOQAwADMAMwBiAGQAYwBjADgAMwAzADMAYwA2ADkAZgABAAAAAgI=

  • 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 45 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\bd0dfbc35aa1070260c273abc94e498b75330743e8113aa2de4cd085003161b8.exe
    "C:\Users\Admin\AppData\Local\Temp\bd0dfbc35aa1070260c273abc94e498b75330743e8113aa2de4cd085003161b8.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2668
    • 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:2336

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    882KB

    MD5

    4127fc13c49cccdac5e9d33821e92c7d

    SHA1

    d401ac808c9db8f1000d7002849c5c7fc067f71d

    SHA256

    bd0dfbc35aa1070260c273abc94e498b75330743e8113aa2de4cd085003161b8

    SHA512

    954db6ce053d4cd4553855958cb6323a30b58ee7e5ecd91671458038e78bcd7dfd9e08ffa4c0a55351b6c4827ed177f40fdf5f01e422db0232fd243facbbbf82

  • memory/2336-12-0x0000000074850000-0x0000000074DFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2336-13-0x0000000074850000-0x0000000074DFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2336-14-0x0000000074850000-0x0000000074DFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2336-15-0x0000000074850000-0x0000000074DFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2336-16-0x0000000074850000-0x0000000074DFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2668-0-0x0000000074851000-0x0000000074852000-memory.dmp

    Filesize

    4KB

  • memory/2668-1-0x0000000074850000-0x0000000074DFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2668-2-0x0000000074850000-0x0000000074DFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2668-11-0x0000000074850000-0x0000000074DFB000-memory.dmp

    Filesize

    5.7MB