Analysis

  • max time kernel
    118s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    24-12-2024 01:09

General

  • Target

    ae2ad2f06637360127c40d58b68cbb66eeb26d82034b394df31df5e0d8007ed1.exe

  • Size

    839KB

  • MD5

    c1e2897090aebfa347bd88eba6d08f90

  • SHA1

    9b16831407a1e4b603409649b5366cb760567765

  • SHA256

    ae2ad2f06637360127c40d58b68cbb66eeb26d82034b394df31df5e0d8007ed1

  • SHA512

    66409a6e30eb83d93b0c0e9b5f5e85d709b44140a3c6c139b801bf808017bc2408d4033a4469029e6e64418646cc8997ea2a3718740654e42d5568b1ebfbe236

  • SSDEEP

    24576:8xdS04YNEMuExDiU6E5R9s8xY/2l/d4t1Ibt+rR:EP4auS+UjfU2T4rIbt+r

Malware Config

Extracted

Family

orcus

C2

another-contains.gl.at.ply.gg

Mutex

a4927b8f548743b9aa2a78ed5eea56e6

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 01:16:48

  • 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.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ae2ad2f06637360127c40d58b68cbb66eeb26d82034b394df31df5e0d8007ed1.exe
    "C:\Users\Admin\AppData\Local\Temp\ae2ad2f06637360127c40d58b68cbb66eeb26d82034b394df31df5e0d8007ed1.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1900
    • 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:2764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab655A.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    839KB

    MD5

    c1e2897090aebfa347bd88eba6d08f90

    SHA1

    9b16831407a1e4b603409649b5366cb760567765

    SHA256

    ae2ad2f06637360127c40d58b68cbb66eeb26d82034b394df31df5e0d8007ed1

    SHA512

    66409a6e30eb83d93b0c0e9b5f5e85d709b44140a3c6c139b801bf808017bc2408d4033a4469029e6e64418646cc8997ea2a3718740654e42d5568b1ebfbe236

  • memory/1900-0-0x0000000074891000-0x0000000074892000-memory.dmp

    Filesize

    4KB

  • memory/1900-1-0x0000000074890000-0x0000000074E3B000-memory.dmp

    Filesize

    5.7MB

  • memory/1900-2-0x0000000074890000-0x0000000074E3B000-memory.dmp

    Filesize

    5.7MB

  • memory/1900-11-0x0000000074890000-0x0000000074E3B000-memory.dmp

    Filesize

    5.7MB

  • memory/2764-13-0x0000000074890000-0x0000000074E3B000-memory.dmp

    Filesize

    5.7MB

  • memory/2764-12-0x0000000074890000-0x0000000074E3B000-memory.dmp

    Filesize

    5.7MB

  • memory/2764-14-0x0000000074890000-0x0000000074E3B000-memory.dmp

    Filesize

    5.7MB

  • memory/2764-31-0x0000000074890000-0x0000000074E3B000-memory.dmp

    Filesize

    5.7MB

  • memory/2764-32-0x0000000074890000-0x0000000074E3B000-memory.dmp

    Filesize

    5.7MB