Analysis

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

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/08/2026, 00:40

General

  • Target
    2026-08-01_5b69400ac83d30adbe6258b2925bd7a9_elex_wannacry.exe
  • Size 51KB
  • Sample260802-a1f6hszzex
  • SHA256 bd596e62fd010d3a147fc2b2ab305626bb9ec4bdf00c5b37aeb791944ac404c2
  • 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 (4954) 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\2026-08-01_5b69400ac83d30adbe6258b2925bd7a9_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-01_5b69400ac83d30adbe6258b2925bd7a9_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4224

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-889581200-2041691093-2048517887-1000\desktop.ini.tmp
        • Size 51KB
        • SHA256 689da3af51f313d45e16c942ed21204dc28e231da8bc89a3c17e69ceba0410d2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.dll.tmp

        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 150KB
        • SHA256 885b6cf4cc9f3f80f954479929e9f1b40d50b772e65a44f2e6de8cca48530418
        • MD5 SHA1 SHA512 SSDEEP TLSH