Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    16/07/2026, 02:44

General

  • Target
    2026-07-16_b71fb136e2bf1eb2e80d1a6fac2891e9_elex_wannacry.exe
  • Size 49KB
  • Sample260716-c8l3vae12w
  • SHA256 32620b904a9954ce3a1dbb34cfb9ac548cad41caad3f0625f47100d27ade784f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 2 IoCs

    Cosmu is a worm written in C++.

  • Renames multiple (5118) files with added filename extension

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

  • 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-16_b71fb136e2bf1eb2e80d1a6fac2891e9_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-16_b71fb136e2bf1eb2e80d1a6fac2891e9_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4336

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-876885714-46325919-1482798410-1000\desktop.ini.tmp
        • Size 49KB
        • SHA256 e734a8d122f510463ea95e559bf8a07944bcb3cc19ffe49dd3a41e3da025bac8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.dll.tmp

        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 148KB
        • SHA256 bdb9cfb4a7b79b03e04247a5cdad3c4af90ee9068cf72776cf71d7b5cb572844
        • MD5 SHA1 SHA512 SSDEEP TLSH