Analysis

  • max time kernel
    113s
  • max time network
    109s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-01-2025 21:21

General

  • Target

    0e5d6d7455500de7bd42b9d31e16c2171732862f5ae90df3e6f6c4d5e6c549d2N.exe

  • Size

    1.1MB

  • MD5

    7559363bcde67b6e24ea2f94554930b0

  • SHA1

    0e96e8b585f27f55ea67464e50b1d6dfe9651cae

  • SHA256

    0e5d6d7455500de7bd42b9d31e16c2171732862f5ae90df3e6f6c4d5e6c549d2

  • SHA512

    08ac7b3024c7ebfc9a40a494227944baadd01835be99b0beda38548781e401f73280f77551e25f8c38296ff93519f7269031a790929d10170ee2641d572becdf

  • SSDEEP

    24576:1u6J33O0c+JY5UZ+XC0kGso6FakCsU4yYhK3x9uZ3WYi:Xu0c++OCvkGs9Fak4BYi

Malware Config

Extracted

Family

remcos

Version

2.2.0 Pro

Botnet

RemoteHost

C2

185.217.1.142:3337

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    3

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    true

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-VBI2IL

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Modifies WinLogon for persistence 2 TTPs 3 IoCs
  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Remcos family
  • Checks computer location settings 2 TTPs 6 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Modifies WinLogon 2 TTPs 3 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 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 12 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 3 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0e5d6d7455500de7bd42b9d31e16c2171732862f5ae90df3e6f6c4d5e6c549d2N.exe
    "C:\Users\Admin\AppData\Local\Temp\0e5d6d7455500de7bd42b9d31e16c2171732862f5ae90df3e6f6c4d5e6c549d2N.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4004
    • C:\Users\Admin\AppData\Local\Temp\0e5d6d7455500de7bd42b9d31e16c2171732862f5ae90df3e6f6c4d5e6c549d2N.exe
      "C:\Users\Admin\AppData\Local\Temp\0e5d6d7455500de7bd42b9d31e16c2171732862f5ae90df3e6f6c4d5e6c549d2N.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2192
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn cttunesvr /tr "C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe" /sc minute /mo 1 /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4284
  • C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
    C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4012
    • C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
      "C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4924
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1088
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn cttunesvr /tr "C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe" /sc minute /mo 1 /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4476
  • C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
    C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe
      "C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:5064
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2820
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn cttunesvr /tr "C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe" /sc minute /mo 1 /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\install.vbs

    Filesize

    660B

    MD5

    c376eb6601afce2d87546155ad8faa33

    SHA1

    2a3527cf1b62bd47290aad63fc4694c1db5226f2

    SHA256

    3f87dc44e7df5f98b56178b3d421ae18cb2d1486c94e415332d00627af581137

    SHA512

    d2ac3600aca28be3ab89bbd51b71cdd459dee90ee1bd55c5a307fe9cb89aeb44409a0821069a753052145795871beb167b7b88d1502a1104026e8e4861f23c3a

  • C:\Users\Admin\AppData\Local\Temp\install.vbs

    Filesize

    564B

    MD5

    e221e7bd7e33aef4a5264f798818142e

    SHA1

    3545dbcc35de80c8f15da0daceab80acd0f1ae22

    SHA256

    f37e43a3504c163fa4a82bacc92ceb8cccd37d1020fbba95cc954f316ce49516

    SHA512

    04775d0fa21526bbbaa2deea13af1d5fab6183ea3a2809073539293da78e20f1cf4b9a4afdeafb1b4e8ce17a5be40f44364808ab73c174c98bce53ad8a1807d8

  • C:\Users\Admin\AppData\Roaming\adprovider\Dxpserver.exe

    Filesize

    1.1MB

    MD5

    7b683d3dbc5e008187d04a3dbfebbc05

    SHA1

    26751772b4f3f299ed9168eadbfbcaa0ba42d823

    SHA256

    c63b1c38b20fa7310262c5ee21da2e7bc919e696ae26a3d8acfd2c4fed212371

    SHA512

    1ebcf3c99747688478ba11f4fbfe1cf27c8dc42f05fada7d3ab6599f933a9b43e65af937efdcd4ebe2c5a59b427fa2af08b3a9c85f8d2055e0d589e14346fe1a

  • memory/2176-1-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2176-8-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/4004-0-0x0000000001340000-0x0000000001341000-memory.dmp

    Filesize

    4KB

  • memory/4924-24-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/5064-32-0x0000000000A50000-0x0000000000A70000-memory.dmp

    Filesize

    128KB

  • memory/5064-39-0x0000000000A50000-0x0000000000A70000-memory.dmp

    Filesize

    128KB