Overview

overview

10

Static

static

3

WinLock.exe

windows10-2004-x64

WinLock.exe

windows11-ltsc_2024-x64

Analysis

  • user interaction
    yes
  • max time kernel
    0s
  • max time network
    3s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    20/10/2026, 19:56

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Errors

Reason
Machine shutdown

General

  • Target
    WinLock.exe
  • Size 227KB
  • Sample261020-ynr91set3s
  • SHA256 5ed4ac131a872fe75cace42b0048f304cffcddc3d9e6d988b28c21c267e8b19b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoveryexecutionpersistence

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

    execution
  • Adds Run key to start application 2 TTPs 5 IoCs
    persistence
  • 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.

    discovery
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WinLock.exe
    "C:\Users\Admin\AppData\Local\Temp\WinLock.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of WriteProcessMemory
    PID:4320
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\syscfg.ps1"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3664
      • C:\Windows\system32\ReAgentc.exe
        "C:\Windows\system32\ReAgentc.exe" /disable
        3⤵
          PID:1572

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          __PSScriptPolicyTest_hsyf0eq3.qub.ps1
          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hsyf0eq3.qub.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          syscfg.ps1
          • Path C:\Users\Admin\AppData\Local\Temp\syscfg.ps1
          • Size 1KB
          • SHA256 9f86491c8dfad9ed35079e5b32c571c60f56c39e96a754c5babc34e94ac65735
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/3664-3-0x000001B6A3220000-0x000001B6A3230000-memory.dmp
          Download

          memory/3664-4-0x000001B6A3220000-0x000001B6A3230000-memory.dmp
          Download

          memory/3664-5-0x000001B6A3410000-0x000001B6A3432000-memory.dmp
          Download

          memory/4320-0-0x0000017692DC0000-0x0000017692E00000-memory.dmp
          Download

          memory/4320-1-0x00000176AD670000-0x00000176AD680000-memory.dmp
          Download