Overview

overview

10

Static

static

10

2026-05-11...ry.exe

windows10-2004-x64

10

2026-05-11...ry.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    103s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250619-en
  • resource tags

    arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    11/05/2026, 02:57

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General

  • Target
    2026-05-11_a67441c280ef825b639d92d1e414e19c_elex_wannacry.exe
  • Size 5.9MB
  • Sample260511-dfyfvady6n
  • SHA256 15349eeff9f0247f49442936a73ca234cb6a13ce5a07a638aaf6692d7fa695d4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoverycosmuransomwareworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • Detects Cosmu payload 4 IoCs

    Cosmu is a worm written in C++.

  • Custom signature
    Detects executables packed with eXPressor 4 IoCs
  • Renames multiple (489) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Drops file in Program Files directory 64 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.

    discovery

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-11_a67441c280ef825b639d92d1e414e19c_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-11_a67441c280ef825b639d92d1e414e19c_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3076

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-3534313381-4287935181-1066995225-1000\desktop.ini.tmp
        • Size 5.9MB
        • SHA256 33254b942953dcd9239f8eef1546acd88fba194249fa3ddec003996234182b0e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        2010_x86.log.html.tmp
        • Path C:\ee7b48beb14adf7523fc40380cdb9c\2010_x86.log.html.tmp
        • Size 6.0MB
        • SHA256 0bdc696000c4b116866b43150e403b9de7b81bfa2440a7bd42e2e311c0bfd3ba
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/3076-0-0x0000000000400000-0x000000000040A000-memory.dmp
        Download

        memory/3076-99-0x0000000000400000-0x000000000040A000-memory.dmp
        Download