Overview

overview

10

Static

static

10

2026-07-04...er.exe

windows10-2004-x64

10

2026-07-04...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/07/2026, 02:05

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General

  • Target
    2026-07-04_79f22c3fa2710b07fd0c31928313fe75_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260704-ch78dsat2x
  • SHA256 306fd0193eb0c21623df5c8e643d657b4449d06632f878b4f3dddf056e34b641
  • 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\2026-07-04_79f22c3fa2710b07fd0c31928313fe75_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-04_79f22c3fa2710b07fd0c31928313fe75_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:1316

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 335KB
        • SHA256 1a88a10fe8f79e0728eab81c943ad712f1ed175141bfc31984286c965fc1cb9d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXE3D7.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXE3D7.tmp
        • Size 284KB
        • SHA256 7b5860e6407f31f55071c3d014027e3c6a0bfc9282db2b81a17712b98058a712
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 336KB
        • SHA256 5a3613955c1d936527bd250e0b54015771f5471dd3f2b2de242de8195896858d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 5cbb768b475754693cb18b9bfd39cd08b6e6dfb12511a612ae57fc19a36e0ebd
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXE568.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCXE568.tmp
        • Size 284KB
        • SHA256 3d2525aaa5e26b2ed3040755ceed4b2c594614dee7a7a89c467e719569e03611
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download