Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    01/06/2026, 22:51

General

  • Target
    tmphjexb0vt.exe
  • Size 244KB
  • Sample260601-2sr2lagw7t
  • SHA256 57a2eae774207785461c277a83280a90f0297d45fa6d355e254423526508e71b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 1.7.4 Pro

Botnet
  • Host

C2
  • blockcha1n.info:2404

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • 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-1DD1FQ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Family: Remcos

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • 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 2 IoCs

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

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmphjexb0vt.exe
    "C:\Users\Admin\AppData\Local\Temp\tmphjexb0vt.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3628
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe" /logtoconsole=false /logfile= /u "C:\Users\Admin\AppData\Local\Temp\tmphjexb0vt.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4852
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
        3⤵
          PID:1748

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1748-13-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-14-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-24-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-4-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-23-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-8-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-9-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-10-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-11-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-15-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-22-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-21-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-12-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-16-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-17-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-18-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-19-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/1748-20-0x0000000000400000-0x0000000000418000-memory.dmp

          memory/3628-0-0x0000000000E60000-0x0000000000E70000-memory.dmp

          memory/3628-1-0x00000000750F2000-0x00000000750F4000-memory.dmp

          memory/4852-7-0x00000000750F0000-0x000000007518B000-memory.dmp

          memory/4852-3-0x00000000750F0000-0x000000007518B000-memory.dmp