Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/09/2026, 12:31

General

  • Target
    Banco de Crédito del Perú_Copia de Pago.pdf.js
  • Size 3.0MB
  • Sample260904-pp777afe87
  • SHA256 92560e59e41ce7d7f0a04cd91d14c84f99d2c1956ac2152ee299199c6550bbbe
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 7.3.1 Pro

Botnet
  • RemoteHost

C2
  • 89.106.84.200:8736

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-4UFLX0

  • 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.

  • Creates a file in the Startup directory 1 TTPs 1 IoCs

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

  • Executes dropped EXE 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\Banco de Crédito del Perú_Copia de Pago.pdf.js"
    1⤵
    • Creates a file in the Startup directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Users\Admin\AppData\Local\Temp\cyVhaX\uaodhbermiestwywjqcbjorxoa.exe
      "C:\Users\Admin\AppData\Local\Temp\cyVhaX\uaodhbermiestwywjqcbjorxoa.exe" "C:\Users\Admin\AppData\Local\Temp\cyVhaX\sktfxpshrwboggkf.dat"
      2⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2736
      • C:\Windows\System32\charmap.exe
        C:\Windows\System32\charmap.exe
        3⤵
        • Accesses Microsoft Outlook profiles
        • outlook_office_path
        PID:4864

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        awkpstzxwsbrtbzxbbc

        • Path C:\Users\Admin\AppData\Local\Temp\cyVhaX\awkpstzxwsbrtbzxbbc
        • Size 697KB
        • SHA256 0b9aabfceec1cdd132c73e4c83821fe1afc8c73e36c399fdc1c7116e923adc6c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        sktfxpshrwboggkf.dat

        • Path C:\Users\Admin\AppData\Local\Temp\cyVhaX\sktfxpshrwboggkf.dat
        • Size 15KB
        • SHA256 fe20ceb06b2ab7f3be7ed7f067ba6a939a7f274c678e80bb1ef21fb2a17f4709
        • MD5 SHA1 SHA512 SSDEEP TLSH

        uaodhbermiestwywjqcbjorxoa.exe

        • Path C:\Users\Admin\AppData\Local\Temp\cyVhaX\uaodhbermiestwywjqcbjorxoa.exe
        • Size 1.1MB
        • SHA256 5d69a932a077fee044b193c28e84564143f5c7e51079ab48e88fef74ab0b77b7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4864-19-0x0000000180000000-0x000000018012C000-memory.dmp

        memory/4864-22-0x0000000180000000-0x000000018012C000-memory.dmp

        memory/4864-14-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-15-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-16-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-17-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-18-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-12-0x00000268C1720000-0x00000268C17CF000-memory.dmp

        memory/4864-23-0x0000000180000000-0x000000018012C000-memory.dmp

        memory/4864-13-0x00000268C1720000-0x00000268C17CF000-memory.dmp

        memory/4864-24-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-25-0x00000268C1720000-0x00000268C17CF000-memory.dmp

        memory/4864-26-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-27-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-28-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-29-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-30-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-31-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-32-0x0000000140000000-0x00000001400AF000-memory.dmp

        memory/4864-33-0x0000000140000000-0x00000001400AF000-memory.dmp