Overview

overview

10

Static

static

10

2026-08-21...er.exe

windows10-2004-x64

10

2026-08-21...er.exe

windows11-ltsc_2024-x64

10

Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/08/2026, 00:49

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General

  • Target
    2026-08-21_e064914e3711d33036c19d8fc1aba205_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample260822-a6dbtadh84
  • SHA256 41fa08737804f48a293224a3bbfbfd2938e487febf862760a191a52e0f956975
  • 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\2026-08-21_e064914e3711d33036c19d8fc1aba205_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-21_e064914e3711d33036c19d8fc1aba205_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:1896

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 332KB
        • SHA256 35045aa209bbe4d99eaec5695215024532d1a10e5668ec981caa2a66b8339b58
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX53B7.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX53B7.tmp
        • Size 336KB
        • SHA256 b53a2d70a303fd2add7755f2d25ee3a52bcb187f1dc18125d065a5849210b13d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 336KB
        • SHA256 211ae059db0215b5c1cea57213e271925a85f7bf16f74e2577c7455ec8f8f1ec
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 7b53062ae167e23e28f0d6f2371fb4bb15c1c0bd7324079dcb4cbec9c56ee266
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX54FA.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX54FA.tmp
        • Size 284KB
        • SHA256 43d9968b3d341702bd4e8f16e6a28b992d0590108747241fc7fd0855453878ab
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download