Analysis

  • max time kernel
    141s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 01:01

General

  • Target

    054697ace0d766b0c0020a079d9293151df9df526d0ce4680961ce842b55f120.exe

  • Size

    846KB

  • MD5

    fa0ab76c614b5804003273d61c3bdcfa

  • SHA1

    3de3e03a0ce85ae4f2ca72f6e4ffcee481ec8ed4

  • SHA256

    054697ace0d766b0c0020a079d9293151df9df526d0ce4680961ce842b55f120

  • SHA512

    e1b34a6d786eec99710981ac3ef643ad19a04f4f49813f258da0d87fd602796817d35808553a424abe64f28c2dcd0349846190bc2f65b39e06549defa9f4291c

  • SSDEEP

    24576:Sl9S04YNEMuExDiU6E5R9s8xY/2l/dOBzIbt+rx:Slv4auS+UjfU2TWzIbt+r

Malware Config

Extracted

Family

orcus

C2

192.168.1.12

Mutex

945d0576fc50418cbdfec84205dea011

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

    12/15/2024 22:14:18

  • plugins

    AgUFyfihswTdIPqEArukcmEdSF06Hw9CAFMAbwBEACAAUAByAG8AdABlAGMAdABpAG8AbgAHAzEALgAwAEEgZAA1ADYANgA2AGQANABiAGEAMABhAGIANABkADYAZAA5ADYANQA2ADgAYgA5ADAANABjADIAMQBlAGQAMQAzAAEFl6aNkQPXkQKOmwKLvFcpr24sKCsVRABpAHMAYQBiAGwAZQAgAFcAZQBiAGMAYQBtACAATABpAGcAaAB0AHMABwMxAC4AMABBIDUAZQBiADMAMgBmADUAZQA2ADcAYwA1ADQANQA0AGEAYgBkADAAOQBmADgAMABjADIAMwA5ADQANwAyADYAZAABAAAEBA==

  • 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 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 3 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\054697ace0d766b0c0020a079d9293151df9df526d0ce4680961ce842b55f120.exe
    "C:\Users\Admin\AppData\Local\Temp\054697ace0d766b0c0020a079d9293151df9df526d0ce4680961ce842b55f120.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:2008
    • 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 SetWindowsHookEx
      PID:2516

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\SysWOW64\WindowsInput.InstallLog

    Filesize

    224B

    MD5

    e469dda91ae810a1f94c96060f3f8a65

    SHA1

    0b4b3b0f6f937016b1e045ce5313ee2a65a38630

    SHA256

    d42fee8db8eb0e047ca53ad59b1c9bc69fe04993be36fec502e3532371908842

    SHA512

    2eb4037361c03e195c642a53f55a3182a6df19903db503060e366f2394750e64ae04fdaace61ef5a6dba649defc88322d78edd2928bc53ebd1ce11d68cc88dac

  • C:\Windows\SysWOW64\WindowsInput.InstallLog

    Filesize

    597B

    MD5

    c2291863df7c2d3038ce3c22fa276506

    SHA1

    7b7d2bc07a6c35523807342c747c9b6a19f3184e

    SHA256

    14504199bede3f46129969dbd2b7680f2e5b7fcd73a3e427ce1bb6217a6d13da

    SHA512

    00bf40174a67e3e663d18a887c5b461a1e5ead0b27f0a139d87969158c58f4ca72cfa5a731dda239356192ca4cb5ac6ae2b0e37401d534e686cabacd3cbee8fa

  • C:\Windows\SysWOW64\WindowsInput.exe

    Filesize

    21KB

    MD5

    e854a4636afc652b320e12e50ba4080e

    SHA1

    8a4ac6ecc22ee5f3a8ec846d38b41ff18c641fdc

    SHA256

    94b9c78c6fa2bf61fba20a08ad4563f7dd2f5668c28eff227965ce0a2032d5d5

    SHA512

    30aabd5079b6ed0948eb70fd18e9166096e4ba5d1d47fc35b7270f931d19bbe6cd929b6010f70297bf5272dc5a79e2523721354d211c4080d68ad8d17e316118

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

    Filesize

    846KB

    MD5

    fa0ab76c614b5804003273d61c3bdcfa

    SHA1

    3de3e03a0ce85ae4f2ca72f6e4ffcee481ec8ed4

    SHA256

    054697ace0d766b0c0020a079d9293151df9df526d0ce4680961ce842b55f120

    SHA512

    e1b34a6d786eec99710981ac3ef643ad19a04f4f49813f258da0d87fd602796817d35808553a424abe64f28c2dcd0349846190bc2f65b39e06549defa9f4291c

  • memory/2008-41-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

    Filesize

    9.6MB

  • memory/2008-25-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

    Filesize

    9.6MB

  • memory/2008-17-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

    Filesize

    9.6MB

  • memory/2008-14-0x000007FEF53CE000-0x000007FEF53CF000-memory.dmp

    Filesize

    4KB

  • memory/2116-5-0x0000000000560000-0x0000000000568000-memory.dmp

    Filesize

    32KB

  • memory/2116-7-0x00000000005E0000-0x00000000005EC000-memory.dmp

    Filesize

    48KB

  • memory/2116-6-0x00000000005D0000-0x00000000005D8000-memory.dmp

    Filesize

    32KB

  • memory/2116-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

    Filesize

    4KB

  • memory/2116-4-0x0000000000B70000-0x0000000000BBC000-memory.dmp

    Filesize

    304KB

  • memory/2116-3-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2116-2-0x0000000000270000-0x000000000027A000-memory.dmp

    Filesize

    40KB

  • memory/2116-44-0x0000000004F60000-0x0000000004FAE000-memory.dmp

    Filesize

    312KB

  • memory/2116-1-0x0000000001330000-0x000000000140A000-memory.dmp

    Filesize

    872KB

  • memory/2116-51-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2516-52-0x0000000000EB0000-0x0000000000F8A000-memory.dmp

    Filesize

    872KB

  • memory/2516-53-0x0000000000A40000-0x0000000000A50000-memory.dmp

    Filesize

    64KB