Overview

overview

10

Static

static

10

2026-08-01...ry.exe

windows10-2004-x64

10

2026-08-01...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/08/2026, 00:23

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General

  • Target
    2026-08-01_7dfb8e94517e8cf5b123ac92d9f824c9_elex_wannacry.exe
  • Size 504KB
  • Sample260802-appcraah63
  • SHA256 62fb65903f9bd6d130caa2886906e68af802797f8321b5c313b7cc29b4ce0304
  • 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 2 IoCs

    Cosmu is a worm written in C++.

  • Renames multiple (2428) 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\2026-08-01_7dfb8e94517e8cf5b123ac92d9f824c9_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-01_7dfb8e94517e8cf5b123ac92d9f824c9_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:2428

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-3989226554-2204910950-1522900112-1000\desktop.ini.tmp
        • Size 504KB
        • SHA256 47a6e7da0db06438cb67e1ac45304076a928dc4996e3a7853c6ed01c10f551c2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.dll.tmp
        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 603KB
        • SHA256 8bcaf3d5667e81c88d31aa59f5a261e4b612f56c7f3ed865c35f19234bea2c4d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download