Analysis

  • max time kernel
    300s
  • max time network
    297s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    21/09/2026, 03:17

General

  • Target
    사무총장.vbe
  • Size 26KB
  • Sample260921-ds91eavt6j
  • SHA256 a461688a86c5099c0a0692df8337e3e22e3c71ce2dae04f7218c34746ce04ddc
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 7.3.1 Pro

Botnet
  • RemoteHost

C2
  • 102.220.163.40:2404

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-J652VL

  • 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 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 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 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\사무총장.vbe"
    1⤵
    • Executes a VBScript file via the Windows Script Host.
    • Suspicious use of WriteProcessMemory
    PID:3380
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /v:on /c echo ^%Korthornet^% | !Produktionsprocessen19! -
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:8
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" echo %Korthornet% "
        3⤵
          PID:6112
        • \??\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:4436
          • C:\Windows\SysWOW64\backgroundtaskhost.exe
            "C:\Windows\SysWOW64\backgroundtaskhost.exe"
            4⤵
              PID:1828
            • 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:400
              • C:\Windows\SysWOW64\backgroundtaskhost.exe
                "C:\Windows\SysWOW64\backgroundtaskhost.exe"
                5⤵
                  PID:5048

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/400-29-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-67-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-66-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-65-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-64-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-63-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-62-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-61-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-60-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-59-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-58-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-57-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-56-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-52-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-51-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-50-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-49-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-48-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-47-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-46-0x000000001E700000-0x000000001E7F7000-memory.dmp

              memory/400-45-0x000000001E700000-0x000000001E7F7000-memory.dmp

              memory/400-43-0x000000001E700000-0x000000001E7F7000-memory.dmp

              memory/400-41-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/400-36-0x0000000000CE0000-0x0000000001FC6000-memory.dmp

              memory/4436-14-0x00000000746D0000-0x0000000074E8C000-memory.dmp

              memory/4436-15-0x0000000008300000-0x000000000897C000-memory.dmp

              memory/4436-27-0x0000000009500000-0x000000000C318000-memory.dmp

              memory/4436-26-0x00000000746D0000-0x0000000074E8C000-memory.dmp

              memory/4436-24-0x00000000746D0000-0x0000000074E8C000-memory.dmp

              memory/4436-23-0x00000000746D0000-0x0000000074E8C000-memory.dmp

              memory/4436-22-0x00000000746D0000-0x0000000074E8C000-memory.dmp

              memory/4436-21-0x00000000746D0000-0x0000000074E8C000-memory.dmp

              memory/4436-20-0x00000000746E2000-0x00000000746E3000-memory.dmp

              memory/4436-19-0x0000000008F40000-0x00000000094FA000-memory.dmp

              memory/4436-18-0x0000000007D90000-0x0000000007DB2000-memory.dmp

              memory/4436-17-0x0000000007DE0000-0x0000000007E76000-memory.dmp

              memory/4436-16-0x0000000007C80000-0x0000000007C9A000-memory.dmp

              memory/4436-28-0x00000000746D0000-0x0000000074E8C000-memory.dmp

              memory/4436-0-0x00000000746E2000-0x00000000746E3000-memory.dmp

              memory/4436-13-0x0000000007910000-0x0000000007958000-memory.dmp

              memory/4436-12-0x0000000006800000-0x000000000684C000-memory.dmp

              memory/4436-11-0x0000000006440000-0x000000000645E000-memory.dmp

              memory/4436-10-0x0000000006490000-0x00000000067EB000-memory.dmp

              memory/4436-6-0x0000000005BA0000-0x0000000005C06000-memory.dmp

              memory/4436-7-0x00000000062F0000-0x0000000006356000-memory.dmp

              memory/4436-5-0x0000000005AF0000-0x0000000005B12000-memory.dmp

              memory/4436-4-0x00000000746D0000-0x0000000074E8C000-memory.dmp

              memory/4436-3-0x0000000005CA0000-0x00000000062EA000-memory.dmp

              memory/4436-2-0x00000000746D0000-0x0000000074E8C000-memory.dmp

              memory/4436-1-0x0000000002F70000-0x0000000002FA6000-memory.dmp