Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 15:21

General

  • Target
    GST-Refund AL27052600952P.exe
  • Size 783KB
  • Sample260707-srn4wagy6j
  • SHA256 c2c321b1b3a3409d9c1799e78e3c1e99040403a1fc074c59b66bcef0e665ba06
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 1.7 Pro

Botnet
  • Band3

C2
  • 46.183.217.106:37393

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

    ban3

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    band3_oivsemwboajrgozkjghyutui

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • 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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Run Powershell and hide display window.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\GST-Refund AL27052600952P.exe
    "C:\Users\Admin\AppData\Local\Temp\GST-Refund AL27052600952P.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4804
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\GST-Refund AL27052600952P.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2176
    • C:\Users\Admin\AppData\Local\Temp\GST-Refund AL27052600952P.exe
      "C:\Users\Admin\AppData\Local\Temp\GST-Refund AL27052600952P.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4188
  • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\oapaftxptce.ps1"
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3812
    • C:\Users\Admin\AppData\Roaming\guTeTpOLTnEywv.exe
      "C:\Users\Admin\AppData\Roaming\guTeTpOLTnEywv.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:296
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\guTeTpOLTnEywv.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4332
      • C:\Users\Admin\AppData\Roaming\guTeTpOLTnEywv.exe
        "C:\Users\Admin\AppData\Roaming\guTeTpOLTnEywv.exe"
        3⤵
        • Executes dropped EXE
        PID:4536

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 19KB
        • SHA256 3cb2f581e1ffd8099219f1cb28f20af19e0f6336331071ecd484e9316246a581
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_c5cv0wpn.rnc.psm1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_c5cv0wpn.rnc.psm1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        oapaftxptce.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\oapaftxptce.ps1
        • Size 1KB
        • SHA256 d3f5c42cc9f7d619315ae1c1cf5372e3b3134ba2ac818a08dc02cae802870b0d
        • MD5 SHA1 SHA512 TLSH

        guTeTpOLTnEywv.exe

        • Path C:\Users\Admin\AppData\Roaming\guTeTpOLTnEywv.exe
        • Size 783KB
        • SHA256 c2c321b1b3a3409d9c1799e78e3c1e99040403a1fc074c59b66bcef0e665ba06
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2176-43-0x0000000006880000-0x00000000068A0000-memory.dmp

        memory/2176-45-0x0000000007C60000-0x00000000082DC000-memory.dmp

        memory/2176-53-0x0000000074FE0000-0x000000007579C000-memory.dmp

        memory/2176-49-0x0000000074FE0000-0x000000007579C000-memory.dmp

        memory/2176-48-0x0000000007890000-0x0000000007926000-memory.dmp

        memory/2176-47-0x0000000007690000-0x000000000769A000-memory.dmp

        memory/2176-46-0x0000000007620000-0x000000000763A000-memory.dmp

        memory/2176-44-0x00000000074C0000-0x0000000007563000-memory.dmp

        memory/2176-40-0x0000000071730000-0x000000007177C000-memory.dmp

        memory/2176-14-0x0000000002AD0000-0x0000000002B06000-memory.dmp

        memory/2176-16-0x0000000074FE0000-0x000000007579C000-memory.dmp

        memory/2176-39-0x0000000007460000-0x0000000007496000-memory.dmp

        memory/2176-22-0x0000000002A40000-0x0000000002A50000-memory.dmp

        memory/2176-23-0x00000000055C0000-0x0000000005C0A000-memory.dmp

        memory/2176-36-0x0000000006380000-0x00000000063CC000-memory.dmp

        memory/2176-20-0x0000000074FE0000-0x000000007579C000-memory.dmp

        memory/2176-35-0x00000000062B0000-0x00000000062CE000-memory.dmp

        memory/2176-25-0x00000000054E0000-0x0000000005502000-memory.dmp

        memory/2176-29-0x0000000005C80000-0x0000000005CE6000-memory.dmp

        memory/2176-28-0x0000000005C10000-0x0000000005C76000-memory.dmp

        memory/2176-33-0x0000000005EC0000-0x000000000621B000-memory.dmp

        memory/3812-32-0x0000022279050000-0x0000022279072000-memory.dmp

        memory/4188-17-0x0000000000400000-0x0000000000417000-memory.dmp

        memory/4188-52-0x0000000000400000-0x0000000000417000-memory.dmp

        memory/4188-21-0x0000000000400000-0x0000000000417000-memory.dmp

        memory/4188-12-0x0000000000400000-0x0000000000417000-memory.dmp

        memory/4188-15-0x0000000000400000-0x0000000000417000-memory.dmp

        memory/4332-64-0x0000000006F90000-0x0000000007033000-memory.dmp

        memory/4332-61-0x0000000071EF0000-0x0000000071F3C000-memory.dmp

        memory/4332-60-0x00000000062A0000-0x00000000062EC000-memory.dmp

        memory/4804-24-0x0000000074FE0000-0x000000007579C000-memory.dmp

        memory/4804-5-0x00000000031F0000-0x00000000031FA000-memory.dmp

        memory/4804-8-0x0000000074FF2000-0x0000000074FF3000-memory.dmp

        memory/4804-9-0x0000000074FE0000-0x000000007579C000-memory.dmp

        memory/4804-0-0x0000000074FF2000-0x0000000074FF3000-memory.dmp

        memory/4804-7-0x00000000059C0000-0x00000000059CE000-memory.dmp

        memory/4804-1-0x0000000000B60000-0x0000000000C28000-memory.dmp

        memory/4804-6-0x0000000074FE0000-0x000000007579C000-memory.dmp

        memory/4804-4-0x0000000005860000-0x00000000058FC000-memory.dmp

        memory/4804-10-0x0000000007D60000-0x0000000007E12000-memory.dmp

        memory/4804-2-0x0000000005ED0000-0x000000000648A000-memory.dmp

        memory/4804-3-0x00000000057C0000-0x0000000005852000-memory.dmp