Overview

overview

10

Static

static

1

Request_fo...ted.js

windows10-2004-x64

10

Request_fo...ted.js

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    17/05/2026, 12:15

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General

  • Target
    Request_for_Quotation_19008_Trust_Marine_Management_Trading_Limited.js
  • Size 5.5MB
  • Sample260517-pe2yesf19v
  • SHA256 84e26c86f51eb57df53130ef7dcdd79a8eaa4763168521fda74aa08669122e81
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
mar - 02discoveryexecutiondonutloaderremcosloaderrat

Malware Config

Extracted

Family

  • remcos

Botnet

  • MAR - 02

C2

  • marimarivelley.duckdns.org:8773

  • halleyforsaf.duckdns.org:8773

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-01O0KG

  • 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: DonutLoader

    DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    loaderdonutloader
  • Family: Remcos

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

    ratremcos
  • Detects DonutLoader 1 IoCs
    loader
  • Executes dropped EXE 1 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
    execution
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Request_for_Quotation_19008_Trust_Marine_Management_Trading_Limited.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1252
    • C:\Users\Public\Libraries\DWDZFSZBOXGDGWSWPFRIZYUPLXKOHKSLRPCNPEMIRJSJMJQSNQDNMSHEOPHZWPHWN.exe
      "C:\Users\Public\Libraries\DWDZFSZBOXGDGWSWPFRIZYUPLXKOHKSLRPCNPEMIRJSJMJQSNQDNMSHEOPHZWPHWN.exe" C:\Users\Public\Libraries\DWDZFSZBOXGDGWSWPFRIZYUPLXKOHKSLRPCNPEMIRJSJMJQSNQDNMSHEOPHZWPHWN.png
      2⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:5100
      • C:\Windows\Syswow64\colorcpl.exe
        C:\Windows\Syswow64\colorcpl.exe
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4536

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        DWDZFSZBOXGDGWSWPFRIZYUPLXKOHKSLRPCNPEMIRJSJMJQSNQDNMSHEOPHZWPHWN
        • Path C:\Users\Public\Libraries\DWDZFSZBOXGDGWSWPFRIZYUPLXKOHKSLRPCNPEMIRJSJMJQSNQDNMSHEOPHZWPHWN
        • Size 546KB
        • SHA256 48ffaace92ccacf1e20b6eef4dddeabc4378b03f5d6ade8019daee189857574b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        DWDZFSZBOXGDGWSWPFRIZYUPLXKOHKSLRPCNPEMIRJSJMJQSNQDNMSHEOPHZWPHWN.exe
        • Path C:\Users\Public\Libraries\DWDZFSZBOXGDGWSWPFRIZYUPLXKOHKSLRPCNPEMIRJSJMJQSNQDNMSHEOPHZWPHWN.exe
        • Size 1.0MB
        • SHA256 92c6531a09180fae8b2aae7384b4cea9986762f0c271b35da09b4d0e733f9f45
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        DWDZFSZBOXGDGWSWPFRIZYUPLXKOHKSLRPCNPEMIRJSJMJQSNQDNMSHEOPHZWPHWN.png
        • Path C:\Users\Public\Libraries\DWDZFSZBOXGDGWSWPFRIZYUPLXKOHKSLRPCNPEMIRJSJMJQSNQDNMSHEOPHZWPHWN.png
        • Size 26KB
        • SHA256 503f3f989b478a1939bd204329a6263be2d16ca0b3b0b9d5b80465077dab462a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/4536-14-0x0000000004990000-0x0000000005990000-memory.dmp
        Download

        memory/4536-15-0x000000002C650000-0x000000002C6DA000-memory.dmp
        Download