Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/08/2026, 00:00

General

  • Target
    2026-08-12_da2abb4dd732985cfefa5a4ba71c1e71_elex_wannacry.exe
  • Size 41KB
  • Sample260813-aap1qsvyft
  • SHA256 8701e259917d771b549b2328360b738fe634f77109090302fccdf38ac082968c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 4 IoCs

    Cosmu is a worm written in C++.

  • Detects executables packed with eXPressor 4 IoCs
  • Renames multiple (4294) 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\2026-08-12_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:1556

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-1079202589-886135813-2527035092-1000\desktop.ini.tmp
        • Size 42KB
        • SHA256 1cf1eba5d1214038d0ba42d282ab5bffb7ad26d5aa346cc4f299a4617c428b13
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.dll.tmp

        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 140KB
        • SHA256 eb7e59240cfc2733430ba3a7e35679d2f15c87aab5a23f2e9319b9fdb235d693
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1556-0-0x0000000000400000-0x000000000040A000-memory.dmp

        memory/1556-556-0x0000000000400000-0x000000000040A000-memory.dmp