Analysis

  • max time kernel
    150s
  • max time network
    132s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/08/2026, 22:43

General

  • Target
    2026-08-14_f5cef4a787e7b4e03b41fd168af30f84_elex_wannacry.exe
  • Size 28KB
  • Sample260814-2nntdatanf
  • SHA256 d09568765c0b9645b9c7fcb1a973f40b55d48ddae9a14e4e47deffb1ba9b6c79
  • 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 (4545) 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\2026-08-14_f5cef4a787e7b4e03b41fd168af30f84_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-14_f5cef4a787e7b4e03b41fd168af30f84_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:1580

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-2246396966-3025826688-3847171515-1000\desktop.ini.tmp
        • Size 29KB
        • SHA256 864a9d52ca7aa93067b3e2d7fcdb20ef1425a1c8fe8b94ff95493027539858b8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.dll.tmp

        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 127KB
        • SHA256 a7b067b0922ca9fbe870c61e2c446c37c94441054db044dd50984ca70dcedc5a
        • MD5 SHA1 SHA512 SSDEEP TLSH