Overview

overview

10

Static

static

10

2026-08-10...er.exe

windows10-2004-x64

10

2026-08-10...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    113s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/08/2026, 23:46

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General

  • Target
    2026-08-10_7ded023314aaa6542242809daeaa0b2c_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample260810-3snvlsbc62
  • SHA256 eea8cccafa2180c3183f7661b459f7eedf0349508e588205ea4d72810d61db71
  • 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\2026-08-10_7ded023314aaa6542242809daeaa0b2c_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-10_7ded023314aaa6542242809daeaa0b2c_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:1816

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 329KB
        • SHA256 308ba485d01e2bd58e6ac6644de801c7bd6fd765c12605039ae2cf2729aab5be
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX58A9.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX58A9.tmp
        • Size 284KB
        • SHA256 83652bd71b539de8008afb59c0868465dc128c4c68082d519a9ff2c0be1e5327
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX59BD.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX59BD.tmp
        • Size 284KB
        • SHA256 74aabb110c518cebdbe8eb77cd918ee94a4148b1c747d25861658426b782a190
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        helper.exe
        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 353KB
        • SHA256 5aa5367d5a4a5390a41d6c1e217c20e21ea4d086849d76bae157e7d9f0e7bdd8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download