Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/04/2024, 13:21

General

  • Target
    wininit.exe
  • Size 1.3MB
  • Sample240408-ql544add81
  • SHA256 3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • shgoini.com:30902

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-7XHN5V

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 6 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\wininit.exe
    "C:\Users\Admin\AppData\Local\Temp\wininit.exe"
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:5080
    • C:\Users\Admin\AppData\Local\directory\chrome.exe
      "C:\Users\Admin\AppData\Local\Temp\wininit.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4164
      • C:\Windows\SysWOW64\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\wininit.exe"
        3⤵
          PID:560
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2632 --field-trial-handle=2244,i,11986678581565715302,451159359636456336,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:2040

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            outvaunts

            • Path C:\Users\Admin\AppData\Local\Temp\outvaunts
            • Size 29KB
            • SHA256 fd31cbc5b26cd67d16c85a091779f0af58db13a956d3dc6da79d7822f8ea02cd
            • MD5 SHA1 SHA512 SSDEEP

            chrome.exe

            • Path C:\Users\Admin\AppData\Local\directory\chrome.exe
            • Size 111.3MB
            • SHA256 6b617c295a1cd7da379412e407ca785afa6392fd5e2b07619d15e1d0502089cd
            • MD5 SHA1 SHA512 SSDEEP

            memory/560-36-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-40-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-29-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-30-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-31-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-32-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-33-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-34-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-35-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-49-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-39-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-28-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-41-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-42-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-43-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-44-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-45-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-46-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-47-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/560-48-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/5080-10-0x00000000040B0000-0x00000000040B4000-memory.dmp