Analysis

  • user interaction
    yes
  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/10/2026, 19:20

General

  • Target
    zenx.exe
  • Size 1.1MB
  • Sample261030-x2eems1wdv
  • SHA256 0dd70473669d8539f0385619668e87033b50faff34b4bb7b58b1d9ad7e4d3aff
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Creates a file in the Startup directory 1 TTPs 2 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

Processes

  • C:\Users\Admin\AppData\Local\Temp\zenx.exe
    "C:\Users\Admin\AppData\Local\Temp\zenx.exe"
    1⤵
    • Creates a file in the Startup directory
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    PID:3180
  • C:\Users\Admin\AppData\Local\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    C:\Users\Admin\AppData\Local\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    1⤵
    • Executes dropped EXE
    PID:4796

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        MicrosoftEdgeUpdate.exe

        • Path C:\Users\Admin\AppData\Local\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
        • Size 1.1MB
        • SHA256 0dd70473669d8539f0385619668e87033b50faff34b4bb7b58b1d9ad7e4d3aff
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3180-0-0x00007FF9E5B60000-0x00007FF9E5DC3000-memory.dmp

        memory/3180-2-0x00007FF6FDC20000-0x00007FF6FDD46000-memory.dmp

        memory/3180-3-0x000002561E990000-0x000002561EBF3000-memory.dmp