Overview

overview

10

Static

static

10

2026-08-19...er.exe

windows10-2004-x64

10

2026-08-19...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
    19/08/2026, 22:18

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General

  • Target
    2026-08-19_a62539ffa1f5cf8902a32005b81187a2_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260819-171fvavbrd
  • SHA256 3174eb2c07649cdf6f98ac1522cc4c65ed23b2dd733bbb810fd92969263398d1
  • 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 4 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\2026-08-19_a62539ffa1f5cf8902a32005b81187a2_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-19_a62539ffa1f5cf8902a32005b81187a2_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:4156

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 deeae84939155bc5fd33e69881c78b8928076c480150a38e9cd62a8c9aa374f2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrmstp.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe
        • Size 1.5MB
        • SHA256 1a2bb0a831c056efef60c2ec4b35e363df0aa1bc37daff4b15d32b812cf8c899
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 284KB
        • SHA256 677fc230eba5f0e168667b79e376510ae7e4d27b001b1a061cfd14830dcb0bd5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        dotnet.exe
        • Path C:\Program Files\dotnet\dotnet.exe
        • Size 284KB
        • SHA256 70a2f2a979fb5addd1d48f8bf8bea1b2b8fd026a4bfbb8e808e24f43d9278f32
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download