Overview

overview

10

Static

static

10

2026-08-17...ry.exe

windows10-2004-x64

10

2026-08-17...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    17/08/2026, 02:01

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General

  • Target
    2026-08-17_94f7e2692a671fbe56a521df3bc25e86_elex_remcos_wannacry.exe
  • Size 59KB
  • Sample260817-cfllls1erf
  • SHA256 8c389bf6cfb240dde938f3962f641a6a3780170c7011f84045a27e54ce8cfa93
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoveryexecutionstormserpersistenceworm

Malware Config

Signatures

  • Family: Stormser, StormDDoS, StormAttack, Stormer

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

    wormstormser
  • Detects Stormser aka Storm DDoS and StormAttack 1 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 1 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

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

    persistence
  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Executes a command shell one-liner 1 TTPs 1 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 3 IoCs

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

    discovery
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-17_94f7e2692a671fbe56a521df3bc25e86_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-17_94f7e2692a671fbe56a521df3bc25e86_elex_remcos_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:1276
    • C:\Windows\{F6821D93-B3A6-488e-81C2-AB17FBE3E5BB}.exe
      C:\Windows\{F6821D93-B3A6-488e-81C2-AB17FBE3E5BB}.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:944
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:4740

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        {F6821D93-B3A6-488e-81C2-AB17FBE3E5BB}.exe
        • Path C:\Windows\{F6821D93-B3A6-488e-81C2-AB17FBE3E5BB}.exe
        • Size 59KB
        • SHA256 7ca6a4c575f1363b692073937ea34f5d5043fc2e8171e039bbef4ce4f1e8d788
        • MD5 SHA1 SHA512 SSDEEP TLSH
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