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
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    10/05/2026, 04:30

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General

  • Target
    2026-05-10_137b87e48d86033db6a689919a725bae_elex_wannacry.exe
  • Size 781KB
  • Sample260510-e42zlsgz81
  • SHA256 3293a0c7c0e7f2a0bffba4bf2de9ff88606203503b6f0b091964e06b2de7ee76
  • 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 (2685) 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_137b87e48d86033db6a689919a725bae_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-10_137b87e48d86033db6a689919a725bae_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4360

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-1609746302-1884177235-1125644204-1000\desktop.ini.tmp
        • Size 782KB
        • SHA256 3e4a73571578b08149b9fa06919a8d4a03184065f3fddb61137b43283b6a2d89
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.dll.tmp
        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 880KB
        • SHA256 f48b0f2dc6f5481d311800a069cf4bfe1e7eff059058d58c51f76b6904012715
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/4360-0-0x0000000000400000-0x000000000040A000-memory.dmp
        Download

        memory/4360-417-0x0000000000400000-0x000000000040A000-memory.dmp
        Download