Overview

overview

10

Static

static

10

2026-08-01...er.exe

windows10-2004-x64

10

2026-08-01...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    114s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/08/2026, 00:42

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General

  • Target
    2026-08-01_590a1553ef9a33c8af3adf7876b2e57a_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260802-a2cjqa1cjc
  • SHA256 2ee75ca9d1cef69daa17df13e1dd498e9a59789e5fb3de42a3252bfaa06d4a4f
  • 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 6 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\2026-08-01_590a1553ef9a33c8af3adf7876b2e57a_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-01_590a1553ef9a33c8af3adf7876b2e57a_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:4228

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 324KB
        • SHA256 56911e1b4fddff53b21d83c9887f16f87b6eed3643604f15c746e1f59ea68069
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXE398.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXE398.tmp
        • Size 336KB
        • SHA256 7d5d2621b53c0d831a368e55f17632c2bfc76e5a5019b1358d0fd27ae9605fe4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 336KB
        • SHA256 5ca83eccf28a87fa0f7e6e75486f68cc03bdcca4793222ee4f5696986ab0355c
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXE558.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCXE558.tmp
        • Size 284KB
        • SHA256 5a125562d232e4f848f563e537490aedc9b118684f333da000e5921c3e403285
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        appletviewer.exe
        • Path C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe
        • Size 284KB
        • SHA256 859f671ba6192240eafb6467c176acffd50e3fea887877996bd00d0299076be4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        helper.exe
        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 348KB
        • SHA256 33f3ca0b56ee8446b755aea823cf9d96c2b8e63e8a0bcf161c8053af6922bacc
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download