Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/10/2026, 17:48

General

  • Target
    2026-10-06_ed3858c6c321f57c87d791eda32ac266_elex_wannacry.exe
  • Size 24KB
  • Sample261007-wdgpessxay
  • SHA256 7b965f709fe143ae250c62212bc2731ad3aa54864bb25dea0901f166a225ca82
  • 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 (4890) 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\2026-10-06_ed3858c6c321f57c87d791eda32ac266_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-06_ed3858c6c321f57c87d791eda32ac266_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4548
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:3756

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          desktop.ini.tmp

          • Path C:\$Recycle.Bin\S-1-5-21-4154726816-2055034831-2297277433-1000\desktop.ini.tmp
          • Size 24KB
          • SHA256 3c5f9b31ed55d5ae4daf0bb84b2740cb602f66127cab85036fbecb9ba0578ec3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          7-zip.chm.tmp

          • Path C:\Program Files\7-Zip\7-zip.chm.tmp
          • Size 141KB
          • SHA256 08c4fcfe468b956f5a53a06919fba5d1f61d6f6937cc54dc9708d8a0b39b4794
          • MD5 SHA1 SHA512 SSDEEP TLSH