Overview

overview

10

Static

static

10

2026-07-13...er.exe

windows10-2004-x64

10

2026-07-13...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    115s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/07/2026, 00:53

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General

  • Target
    2026-07-13_9da0aaee318714faaca1d018765255fc_elex_rhadamanthys_smoke-loader.exe
  • Size 296KB
  • Sample260714-a8svaady7v
  • SHA256 36abd0366de05cf45e81326443a5859688909c7bb78084cd15ab0f344786dc52
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoverycosmuransomwarespywareworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • Detects Cosmu payload 5 IoCs

    Cosmu is a worm written in C++.

  • Enumerates connected drives 3 TTPs 10 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 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
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-13_9da0aaee318714faaca1d018765255fc_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-13_9da0aaee318714faaca1d018765255fc_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    PID:4084

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 328KB
        • SHA256 de334dde21fc360d4ce6cee0410ba17b3ea75f244c377932b43d345478ffed8a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXFBE3.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXFBE3.tmp
        • Size 288KB
        • SHA256 baadb88ebe593712199b6e6aae9f1a5ec92279274c3cffb3fd7b948eb8c6e6f4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 e87dd165af2519415af34b1af5872d5dba8fcdf8e151eb73fe427c27393ceb5f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXFD45.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCXFD45.tmp
        • Size 288KB
        • SHA256 eaab30fd1950ec99e12e7110569b1dba8c1611fe52d34047e7d054ad6d0194a0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        crashreporter.exe
        • Path C:\Program Files\Mozilla Firefox\crashreporter.exe
        • Size 1.5MB
        • SHA256 3299d8bf1383eb5c6f76c919b122cf055977d9ca283f75cbe58970ce506752e3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download