Overview

overview

10

Static

static

3

2026-08-21...ry.exe

windows10-2004-x64

10

2026-08-21...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    21/08/2026, 04:36

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General

  • Target
    2026-08-21_4cc7fec9d078fcc5a71253e8cbd4683a_elex_wannacry.exe
  • Size 21KB
  • Sample260821-e8nmsashpf
  • SHA256 3e4f7d3c9ef51284dc0b8a8da5aab24406101c6e6c3c9407686713e1a5cb968a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoveryexecutionpersistence

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 6 IoCs
    defense_evasion
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in System32 directory 1 IoCs
  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-21_4cc7fec9d078fcc5a71253e8cbd4683a_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-21_4cc7fec9d078fcc5a71253e8cbd4683a_elex_wannacry.exe"
    1⤵
    • Modifies firewall policy service
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1592
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c tmp.bat
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4700
      • C:\Windows\SysWOW64\reg.exe
        reg add HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v igfxpers /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:1176
  • C:\Users\Admin\AppData\Local\Temp\2026-08-21_4cc7fec9d078fcc5a71253e8cbd4683a_elex_wannacry.exe
    C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE
    1⤵
    • Modifies firewall policy service
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:440
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c tmp.bat
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4076
      • C:\Windows\SysWOW64\reg.exe
        reg add HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v igfxpers /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:4436

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp.bat
        • Size 158B
        • SHA256 8a3ec713e6ad851ee7193de97df4a06eb468deb8bfb5dc78c8badea0d5fde798
        • MD5 SHA1 SHA512 TLSH
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