Overview

overview

10

Static

static

5

2026-04-17...op.exe

windows10-2004-x64

10

2026-04-17...op.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    65s
  • max time network
    117s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    17/04/2026, 15:22

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General

  • Target
    2026-04-17_30c951b9053f87684c6d8a6968b1abc8_elex_stop.exe
  • Size 602KB
  • Sample260417-ssaymsdy3x
  • SHA256 d0be0fe81cd2e996647913fc123939bd258a32a4502b97b177620aa26a79f70e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwaredefense_evasiondiscoverypersistencespyware

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Disables RegEdit via registry modification 1 IoCs
    defense_evasion
  • Disables Task Manager via registry modification
    defense_evasion
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 1 IoCs
    persistence
  • AutoIT Executable 3 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

    discovery
  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
    adwarespyware
  • Modifies registry class 21 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-17_30c951b9053f87684c6d8a6968b1abc8_elex_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-17_30c951b9053f87684c6d8a6968b1abc8_elex_stop.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Disables RegEdit via registry modification
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies WinLogon
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5060
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C AT /delete /yes
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3328
      • C:\Windows\SysWOW64\at.exe
        AT /delete /yes
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2492
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\winhelp.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4968
      • C:\Windows\SysWOW64\at.exe
        AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\winhelp.exe
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4284
  • C:\Windows\explorer.exe
    Explorer.exe rundll.exe
    1⤵
      PID:1804
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:2940

    Network

          MITRE ATT&CK Enterprise v16

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          Downloads

          winhelp.exe
          • Path C:\Windows\SysWOW64\winhelp.exe
          • Size 602KB
          • SHA256 d0be0fe81cd2e996647913fc123939bd258a32a4502b97b177620aa26a79f70e
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/5060-0-0x0000000000400000-0x00000000004A1000-memory.dmp
          Download

          memory/5060-1-0x0000000000467000-0x0000000000468000-memory.dmp
          Download

          memory/5060-19-0x0000000003890000-0x000000000396A000-memory.dmp
          Download

          memory/5060-28-0x0000000000400000-0x00000000004A1000-memory.dmp
          Download