Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/10/2026, 07:46

General

  • Target
    261026_Permintaan Penawaran Harga.vbs
  • Size 44KB
  • Sample261026-jl7vcsvzas
  • SHA256 c87a856dd8c36eb4eb044105691143b42a097c413ed2116439a9a49d6ca6ca1c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 7.3.1 Pro

Botnet
  • RemoteHost

C2
  • 102.220.161.52:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-0OTQJD

  • 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.

  • Badlisted process makes network request 2 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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 behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\261026_Permintaan Penawaran Harga.vbs"
    1⤵
    • Executes a VBScript file via the Windows Script Host.
    • Suspicious use of WriteProcessMemory
    PID:4588
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /v:on /c echo ^%Pearmains^% | !Frifindelsespaastandenes! -
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:4884
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" echo %Pearmains% "
        3⤵
          PID:4232
        • \??\c:\windows\syswow64\WindowsPowerShell\v1.0\powershell.exe
          "c:\windows\syswow64\WindowsPowerShell\v1.0\powershell.exe" -
          3⤵
          • Badlisted process makes network request
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:476
          • C:\Windows\SysWOW64\backgroundtaskhost.exe
            "C:\Windows\SysWOW64\backgroundtaskhost.exe"
            4⤵
              PID:108
            • C:\Windows\SysWOW64\backgroundtaskhost.exe
              "C:\Windows\SysWOW64\backgroundtaskhost.exe"
              4⤵
              • Accesses Microsoft Outlook profiles
              • Suspicious use of NtCreateThreadExHideFromDebugger
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              • outlook_office_path
              PID:360
              • C:\Windows\SysWOW64\backgroundtaskhost.exe
                "C:\Windows\SysWOW64\backgroundtaskhost.exe"
                5⤵
                  PID:3392

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/360-43-0x0000000000C00000-0x0000000001EE6000-memory.dmp

              memory/360-64-0x0000000000C00000-0x0000000001EE6000-memory.dmp

              memory/360-60-0x0000000000C00000-0x0000000001EE6000-memory.dmp

              memory/360-59-0x0000000000C00000-0x0000000001EE6000-memory.dmp

              memory/360-58-0x0000000000C00000-0x0000000001EE6000-memory.dmp

              memory/360-57-0x0000000000C00000-0x0000000001EE6000-memory.dmp

              memory/360-56-0x0000000000C00000-0x0000000001EE6000-memory.dmp

              memory/360-55-0x0000000000C00000-0x0000000001EE6000-memory.dmp

              memory/360-54-0x0000000000C00000-0x0000000001EE6000-memory.dmp

              memory/360-53-0x0000000000C00000-0x0000000001EE6000-memory.dmp

              memory/360-52-0x000000001ED00000-0x000000001EDF7000-memory.dmp

              memory/360-51-0x000000001ED00000-0x000000001EDF7000-memory.dmp

              memory/360-49-0x000000001ED00000-0x000000001EDF7000-memory.dmp

              memory/476-12-0x0000000005D10000-0x0000000005D5C000-memory.dmp

              memory/476-28-0x0000000074A60000-0x000000007521C000-memory.dmp

              memory/476-17-0x0000000007200000-0x0000000007296000-memory.dmp

              memory/476-18-0x00000000071A0000-0x00000000071C2000-memory.dmp

              memory/476-19-0x00000000083D0000-0x000000000898A000-memory.dmp

              memory/476-20-0x0000000074A72000-0x0000000074A73000-memory.dmp

              memory/476-21-0x0000000074A60000-0x000000007521C000-memory.dmp

              memory/476-22-0x0000000074A60000-0x000000007521C000-memory.dmp

              memory/476-23-0x0000000074A60000-0x000000007521C000-memory.dmp

              memory/476-25-0x0000000074A60000-0x000000007521C000-memory.dmp

              memory/476-24-0x0000000008990000-0x0000000009D0B000-memory.dmp

              memory/476-26-0x0000000074A60000-0x000000007521C000-memory.dmp

              memory/476-27-0x0000000074A60000-0x000000007521C000-memory.dmp

              memory/476-16-0x00000000070D0000-0x00000000070EA000-memory.dmp

              memory/476-15-0x0000000007790000-0x0000000007E0C000-memory.dmp

              memory/476-14-0x0000000074A60000-0x000000007521C000-memory.dmp

              memory/476-13-0x0000000006160000-0x00000000061A8000-memory.dmp

              memory/476-0-0x0000000074A72000-0x0000000074A73000-memory.dmp

              memory/476-11-0x0000000005CE0000-0x0000000005CFE000-memory.dmp

              memory/476-10-0x0000000005750000-0x0000000005AAB000-memory.dmp

              memory/476-7-0x00000000056D0000-0x0000000005736000-memory.dmp

              memory/476-6-0x0000000005660000-0x00000000056C6000-memory.dmp

              memory/476-5-0x0000000004F20000-0x0000000004F42000-memory.dmp

              memory/476-4-0x0000000074A60000-0x000000007521C000-memory.dmp

              memory/476-2-0x0000000005010000-0x000000000565A000-memory.dmp

              memory/476-3-0x0000000074A60000-0x000000007521C000-memory.dmp

              memory/476-1-0x0000000002490000-0x00000000024C6000-memory.dmp