Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/10/2026, 00:45

General

  • Target
    Succinea.vbs
  • Size 121KB
  • Sample261028-a4asxafa59
  • SHA256 fc206b9b1c4fdc6ae2ac1ce120d37423e968e143650d4cbc19fd1491a4bd9708
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • 91.92.41.145:2404

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-7A3ZN1

  • 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\Succinea.vbs"
    1⤵
    • Executes a VBScript file via the Windows Script Host.
    • Suspicious use of WriteProcessMemory
    PID:3552
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /v:on /c echo ^%Harmonikasenge156^% | !Ipr! -
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:2464
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" echo %Harmonikasenge156% "
        3⤵
          PID:3336
        • \??\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:4292
          • C:\Windows\SysWOW64\backgroundtaskhost.exe
            "C:\Windows\SysWOW64\backgroundtaskhost.exe"
            4⤵
              PID:5580
            • 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:2520
              • C:\Windows\SysWOW64\backgroundtaskhost.exe
                "C:\Windows\SysWOW64\backgroundtaskhost.exe"
                5⤵
                  PID:3192

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/2520-41-0x0000000001200000-0x00000000024E6000-memory.dmp

              memory/2520-62-0x0000000001200000-0x00000000024E6000-memory.dmp

              memory/2520-58-0x0000000001200000-0x00000000024E6000-memory.dmp

              memory/2520-57-0x0000000001200000-0x00000000024E6000-memory.dmp

              memory/2520-56-0x0000000001200000-0x00000000024E6000-memory.dmp

              memory/2520-55-0x0000000001200000-0x00000000024E6000-memory.dmp

              memory/2520-54-0x0000000001200000-0x00000000024E6000-memory.dmp

              memory/2520-53-0x0000000001200000-0x00000000024E6000-memory.dmp

              memory/2520-52-0x0000000001200000-0x00000000024E6000-memory.dmp

              memory/2520-51-0x0000000001200000-0x00000000024E6000-memory.dmp

              memory/2520-49-0x000000001F280000-0x000000001F377000-memory.dmp

              memory/2520-50-0x000000001F280000-0x000000001F377000-memory.dmp

              memory/2520-47-0x000000001F280000-0x000000001F377000-memory.dmp

              memory/4292-11-0x0000000005D60000-0x0000000005DAC000-memory.dmp

              memory/4292-15-0x0000000007220000-0x00000000072B6000-memory.dmp

              memory/4292-17-0x0000000008330000-0x00000000088EA000-memory.dmp

              memory/4292-18-0x00000000742C2000-0x00000000742C3000-memory.dmp

              memory/4292-19-0x00000000742B0000-0x0000000074A6C000-memory.dmp

              memory/4292-20-0x00000000742B0000-0x0000000074A6C000-memory.dmp

              memory/4292-21-0x00000000742B0000-0x0000000074A6C000-memory.dmp

              memory/4292-22-0x00000000742B0000-0x0000000074A6C000-memory.dmp

              memory/4292-23-0x00000000742B0000-0x0000000074A6C000-memory.dmp

              memory/4292-24-0x00000000088F0000-0x000000000D0A5000-memory.dmp

              memory/4292-26-0x00000000742B0000-0x0000000074A6C000-memory.dmp

              memory/4292-27-0x00000000742B0000-0x0000000074A6C000-memory.dmp

              memory/4292-28-0x00000000742B0000-0x0000000074A6C000-memory.dmp

              memory/4292-16-0x00000000071C0000-0x00000000071E2000-memory.dmp

              memory/4292-14-0x00000000070C0000-0x00000000070DA000-memory.dmp

              memory/4292-13-0x00000000076F0000-0x0000000007D6C000-memory.dmp

              memory/4292-12-0x0000000006D00000-0x0000000006D48000-memory.dmp

              memory/4292-0-0x00000000742C2000-0x00000000742C3000-memory.dmp

              memory/4292-10-0x0000000005D20000-0x0000000005D3E000-memory.dmp

              memory/4292-9-0x0000000005880000-0x0000000005BDB000-memory.dmp

              memory/4292-5-0x0000000005650000-0x00000000056B6000-memory.dmp

              memory/4292-6-0x00000000056C0000-0x0000000005726000-memory.dmp

              memory/4292-4-0x00000000055B0000-0x00000000055D2000-memory.dmp

              memory/4292-3-0x0000000004F60000-0x00000000055AA000-memory.dmp

              memory/4292-2-0x00000000742B0000-0x0000000074A6C000-memory.dmp

              memory/4292-1-0x0000000004820000-0x0000000004856000-memory.dmp