Overview

overview

10

Static

static

10

2026-05-10...ry.exe

windows10-2004-x64

10

2026-05-10...ry.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250619-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250619-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/05/2026, 21:35

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General

  • Target
    2026-05-10_2039536ea2ae18e0fca774e6687b5e3b_elex_wannacry.exe
  • Size 824KB
  • Sample260510-1feease151
  • SHA256 b8f5b869c21fad4200c8e1e1dc59f024405c1862f959a09e357a8bf88cd80265
  • 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++.

  • Detects executables packed with eXPressor 4 IoCs
  • Renames multiple (2508) 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\2026-05-10_2039536ea2ae18e0fca774e6687b5e3b_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-10_2039536ea2ae18e0fca774e6687b5e3b_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5328

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-636600838-1632888396-3521553955-1000\desktop.ini.tmp
        • Size 824KB
        • SHA256 92d0768db4d2f95bcb051d5ab55a24f6e12a515f307305b002159d6870b7ec7a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        2010_x86.log.html.tmp
        • Path C:\589ba37997a284d35c\2010_x86.log.html.tmp
        • Size 905KB
        • SHA256 e2c12700899522222669df63637ea7fccc163758af7b4d58f7734d948e52ac10
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/5328-0-0x0000000000400000-0x000000000040A000-memory.dmp
        Download

        memory/5328-406-0x0000000000400000-0x000000000040A000-memory.dmp
        Download