Analysis

  • max time kernel
    148s
  • max time network
    122s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/07/2026, 18:57

General

  • Target
    2026-07-03_a9c630ca34758684e3e57926e2692ec4_elex_wannacry.exe
  • Size 72KB
  • Sample260703-xmc82aex2w
  • SHA256 28e915be608e077b2a4b30a7751d68b9b866598c11e429946e19d42983f54794
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Stormser, StormDDoS, StormAttack, Stormer

    Stormser aka StormDDoS, StormAttack, and Stormer is a Windows worm written in C++.

  • Detects Stormser aka Storm DDoS and StormAttack 10 IoCs
  • UPX dump on OEP (original entry point) 10 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 3 IoCs
  • UPX packed file 10 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • 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.

  • Modifies registry class 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-03_a9c630ca34758684e3e57926e2692ec4_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-03_a9c630ca34758684e3e57926e2692ec4_elex_wannacry.exe"
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4268
    • C:\Windows\{B6509286-846A-41de-A937-865F7AA4E8E4}.exe
      C:\Windows\{B6509286-846A-41de-A937-865F7AA4E8E4}.exe
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5064
      • C:\Windows\{D56FAD8E-C5E1-41b0-BC36-CB72753B73B5}.exe
        C:\Windows\{D56FAD8E-C5E1-41b0-BC36-CB72753B73B5}.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5796
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{B6509~1.EXE > nul
        3⤵
        • System Location Discovery: System Language Discovery
        PID:476
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1736
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:3128
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1416
      • C:\Windows\{D56FAD8E-C5E1-41b0-BC36-CB72753B73B5}.exe
        "C:\Windows\{D56FAD8E-C5E1-41b0-BC36-CB72753B73B5}.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4412

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        {B6509286-846A-41de-A937-865F7AA4E8E4}.exe

        • Path C:\Windows\{B6509286-846A-41de-A937-865F7AA4E8E4}.exe
        • Size 72KB
        • SHA256 247243bd9db7a2ad975fcea604deee33ac906b806f6640178ed1e4449c0d3fe8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {D56FAD8E-C5E1-41b0-BC36-CB72753B73B5}.exe

        • Path C:\Windows\{D56FAD8E-C5E1-41b0-BC36-CB72753B73B5}.exe
        • Size 72KB
        • SHA256 7883e517e15048cb66375631ba8113df6aa9c38169a6e589961478f37efe0c84
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4268-0-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/4268-1-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/4268-7-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/5064-6-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/5064-9-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/5064-13-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/5796-15-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/5796-17-0x0000000000400000-0x0000000000413000-memory.dmp