Overview

overview

10

Static

static

10

2026-08-12...ry.exe

windows10-2004-x64

10

2026-08-12...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    13/08/2026, 00:00

Sharing

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General

  • Target
    2026-08-12_da2abb4dd732985cfefa5a4ba71c1e71_elex_wannacry.exe
  • Size 41KB
  • Sample260813-aap1qsvyft
  • SHA256 8701e259917d771b549b2328360b738fe634f77109090302fccdf38ac082968c
  • 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 (4843) 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\2026-08-12_da2abb4dd732985cfefa5a4ba71c1e71_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-12_da2abb4dd732985cfefa5a4ba71c1e71_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:1284

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-1788976790-1541110888-1636651838-1000\desktop.ini.tmp
        • Size 42KB
        • SHA256 238300383e80bb5838fb833a02f82590ddfccb46b56b9e4e0d9a7a411dcdb314
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.dll.tmp
        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 140KB
        • SHA256 12a50b3680fb9076d4b5c3394ebca195ce7dd75b04f5b16e53e0e36d55ffa71e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1284-0-0x0000000000400000-0x000000000040A000-memory.dmp
        Download

        memory/1284-533-0x0000000000400000-0x000000000040A000-memory.dmp
        Download