Analysis

  • max time kernel
    299s
  • max time network
    297s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    10/09/2026, 15:24

General

  • Target
    Pendaftaran Lembur September 2026.vbe
  • Size 22KB
  • Sample260910-stblkatxet
  • SHA256 4e0b6d046fee5e9a00860aa8575c5de748cc8830c96d8978318377f53bb72004
  • 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: Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Family: Remcos

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

  • Badlisted process makes network request 4 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 5 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\Pendaftaran Lembur September 2026.vbe"
    1⤵
    • Checks computer location settings
    • Executes a VBScript file via the Windows Script Host.
    • Suspicious use of WriteProcessMemory
    PID:4772
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /v:on /c echo ^%Sorbose^% | !overgovern! -
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:2712
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" echo %Sorbose% "
        3⤵
          PID:1720
        • \??\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:5060
          • C:\Windows\SysWOW64\backgroundtaskhost.exe
            "C:\Windows\SysWOW64\backgroundtaskhost.exe"
            4⤵
              PID:1452
            • 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:1904
              • C:\Windows\SysWOW64\backgroundtaskhost.exe
                "C:\Windows\SysWOW64\backgroundtaskhost.exe"
                5⤵
                  PID:3788

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              __PSScriptPolicyTest_h0u2ju2l.klv.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_h0u2ju2l.klv.ps1
              • Size 60B
              • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
              • MD5 SHA1 SHA512 TLSH

              memory/1904-71-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-69-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-77-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-76-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-75-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-74-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-80-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-73-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-72-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-36-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-78-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-68-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-70-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-67-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-66-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-65-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-64-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/1904-56-0x000000001DF30000-0x000000001E027000-memory.dmp

              memory/1904-57-0x000000001DF30000-0x000000001E027000-memory.dmp

              memory/1904-53-0x000000001DF30000-0x000000001E027000-memory.dmp

              memory/1904-50-0x0000000000800000-0x0000000001A54000-memory.dmp

              memory/5060-18-0x00000000071E0000-0x0000000007256000-memory.dmp

              memory/5060-22-0x0000000007410000-0x0000000007432000-memory.dmp

              memory/5060-31-0x0000000008AC0000-0x0000000009F32000-memory.dmp

              memory/5060-32-0x0000000008AC0000-0x0000000009F32000-memory.dmp

              memory/5060-33-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

              memory/5060-34-0x00000000078C0000-0x00000000078C4000-memory.dmp

              memory/5060-35-0x0000000008AC0000-0x0000000009F32000-memory.dmp

              memory/5060-29-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

              memory/5060-27-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

              memory/5060-26-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

              memory/5060-25-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

              memory/5060-24-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

              memory/5060-23-0x0000000008510000-0x0000000008AB4000-memory.dmp

              memory/5060-30-0x00000000078C0000-0x00000000078C4000-memory.dmp

              memory/5060-21-0x00000000074F0000-0x0000000007586000-memory.dmp

              memory/5060-20-0x0000000007260000-0x000000000727A000-memory.dmp

              memory/5060-19-0x00000000078E0000-0x0000000007F5A000-memory.dmp

              memory/5060-0-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

              memory/5060-17-0x0000000006460000-0x00000000064A4000-memory.dmp

              memory/5060-16-0x0000000005EF0000-0x0000000005F3C000-memory.dmp

              memory/5060-15-0x0000000005ED0000-0x0000000005EEE000-memory.dmp

              memory/5060-14-0x0000000005860000-0x0000000005BB4000-memory.dmp

              memory/5060-6-0x0000000005060000-0x00000000050C6000-memory.dmp

              memory/5060-5-0x0000000004F40000-0x0000000004FA6000-memory.dmp

              memory/5060-4-0x0000000004EA0000-0x0000000004EC2000-memory.dmp

              memory/5060-3-0x00000000051F0000-0x0000000005818000-memory.dmp

              memory/5060-2-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

              memory/5060-1-0x0000000002520000-0x0000000002556000-memory.dmp