Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/07/2026, 23:23

General

  • Target
    2026-07-31_aeba4efdf8d76ca9cabe5d495b52cd7e_elex_wannacry.exe
  • Size 48KB
  • Sample260731-3dendssgra
  • SHA256 09a07ad1bbfc0207996e8874547f4ef78e91c48215d50e8717f28da97500a39e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 7 IoCs
  • Drops autorun.inf file 1 TTPs 4 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • UPX packed file 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-31_aeba4efdf8d76ca9cabe5d495b52cd7e_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-31_aeba4efdf8d76ca9cabe5d495b52cd7e_elex_wannacry.exe"
    1⤵
    • Drops autorun.inf file
    • System Location Discovery: System Language Discovery
    PID:4372
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 484
      2⤵
      • Program crash
      PID:4880
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 4372 -ip 4372
    1⤵
      PID:764

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/4372-0-0x0000000000400000-0x000000000040C000-memory.dmp

          memory/4372-1-0x0000000000A10000-0x0000000000A25000-memory.dmp

          memory/4372-2-0x0000000000A10000-0x0000000000A25000-memory.dmp

          memory/4372-3-0x0000000000A10000-0x0000000000A25000-memory.dmp

          memory/4372-5-0x0000000000A10000-0x0000000000A25000-memory.dmp

          memory/4372-7-0x0000000000A30000-0x0000000000A31000-memory.dmp

          memory/4372-12-0x0000000000A10000-0x0000000000A25000-memory.dmp

          memory/4372-10-0x0000000000A10000-0x0000000000A25000-memory.dmp

          memory/4372-21-0x0000000000A10000-0x0000000000A25000-memory.dmp

          memory/4372-26-0x0000000000400000-0x000000000040C000-memory.dmp