Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/10/2026, 09:37

General

  • Target
    103_ETT1773214587633.JS.js
  • Size 3.7MB
  • Sample261008-llpd5avthx
  • SHA256 a6b6bc072f1f38a5124736628219ac334e4c98b2d798ee8fb562d21b36c3411e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Formbook payload 1 IoCs
  • Executes dropped EXE 1 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\103_ETT1773214587633.JS.js
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4768
    • C:\Users\Admin\Documents\MRQIQVKJHYDBCVKY.exe
      "C:\Users\Admin\Documents\MRQIQVKJHYDBCVKY.exe" C:\Users\Admin\Documents\YKVCBDYHJKVQIQRM
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:5016

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        MRQIQVKJHYDBCVKY.exe

        • Path C:\Users\Admin\Documents\MRQIQVKJHYDBCVKY.exe
        • Size 499KB
        • SHA256 d447a06cba8d3dbe80e09d73dd64576836b258961ee0d3ba56cf26cea7962b49
        • MD5 SHA1 SHA512 SSDEEP TLSH

        YKVCBDYHJKVQIQRM

        • Path C:\Users\Admin\Documents\YKVCBDYHJKVQIQRM
        • Size 564KB
        • SHA256 eefcf59af813a50f20863bc01dc023e967ff4c8d604ae437d748b933c817b930
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/5016-9-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-10-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-16-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-15-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-14-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-13-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-12-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-11-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-24-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-32-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-33-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-34-0x0000000002810000-0x0000000002856000-memory.dmp

        memory/5016-31-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-35-0x0000000002E60000-0x0000000002EA6000-memory.dmp

        memory/5016-29-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-28-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-27-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-26-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-23-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-22-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-21-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-30-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-25-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-20-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-19-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-18-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-17-0x000000007FE90000-0x000000007FEA0000-memory.dmp

        memory/5016-36-0x0000000003C00000-0x0000000003F74000-memory.dmp

        memory/5016-37-0x0000000002E60000-0x0000000002EA6000-memory.dmp

        memory/5016-38-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/5016-42-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/5016-43-0x0000000002E60000-0x0000000002EA6000-memory.dmp