Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/07/2026, 16:13

General

  • Target
    loader_8e7c4479c8530a2b.ps1
  • Size 301KB
  • Sample260714-tpem4aay4s
  • SHA256 99d0eb6047cc8c9f8cd061a6fcd18bb1fb6a5d4cfb78dd626b7f90a2d90e11b2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 7.2.6 Light

Botnet
  • RemoteHost

C2
  • oudwaubach.nl:443

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    3

  • connect_interval

    3

  • 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-QYINA5

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Family: Remcos

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 17 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\loader_8e7c4479c8530a2b.ps1
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4356
    • C:\Users\Admin\AppData\Local\Temp\ctfmon.exe
      "C:\Users\Admin\AppData\Local\Temp\ctfmon.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1120

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        ctfmon.exe

        • Path C:\Users\Admin\AppData\Local\Temp\ctfmon.exe
        • Size 226KB
        • SHA256 8e7c4479c8530a2bab847c5e2edcec8c3162c22dbb3c3cc20f12f8b028e92cb8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1120-31-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-30-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-38-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-37-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-25-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-36-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-35-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-24-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-33-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-32-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-22-0x0000000000489000-0x000000000048A000-memory.dmp

        memory/1120-23-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-29-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-34-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-28-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-26-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1120-27-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/4356-7-0x00007FFE1B770000-0x00007FFE1C114000-memory.dmp

        memory/4356-3-0x00000238ABB00000-0x00000238ABB22000-memory.dmp

        memory/4356-16-0x00007FFE1B770000-0x00007FFE1C114000-memory.dmp

        memory/4356-0-0x00007FFE1B8FF000-0x00007FFE1B900000-memory.dmp

        memory/4356-21-0x00007FFE1B770000-0x00007FFE1C114000-memory.dmp

        memory/4356-4-0x00007FFE1B770000-0x00007FFE1C114000-memory.dmp

        memory/4356-11-0x00007FFE1B770000-0x00007FFE1C114000-memory.dmp

        memory/4356-10-0x00007FFE1B770000-0x00007FFE1C114000-memory.dmp

        memory/4356-9-0x00007FFE1B770000-0x00007FFE1C114000-memory.dmp

        memory/4356-6-0x00007FFE1B770000-0x00007FFE1C114000-memory.dmp

        memory/4356-5-0x00007FFE1B770000-0x00007FFE1C114000-memory.dmp