Overview

overview

10

Static

static

10

2026-08-20...er.exe

windows10-2004-x64

10

2026-08-20...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    21/08/2026, 02:44

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General

  • Target
    2026-08-20_943db6f85a60407112e7e3c94a7fdb6d_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260821-c77cdsvxex
  • SHA256 4eca65ef06bf3b2e62372a2280cb55f49bffd2a9766eb85fdec3d4f999d3e889
  • 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\2026-08-20_943db6f85a60407112e7e3c94a7fdb6d_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-20_943db6f85a60407112e7e3c94a7fdb6d_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:6052

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 320KB
        • SHA256 033fc820e28dc82ad0afb0b59642f2d2245ece8481d299199aa7c7c616baaa90
        • 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 ecc8d892163af9cf6d807993e21165d8f18155b36abf51d78ff46264ad9350a3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 336KB
        • SHA256 9a5a97d637e1e72fdfcd332a7f7e79eb5d0c84bf5c2872e864239b8dc4037e77
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 336KB
        • SHA256 2db9e69123f9a056cc10569840c243f5f71b06c4c522a1b8535fbcbfaf9ec059
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome_proxy.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome_proxy.exe
        • Size 320KB
        • SHA256 9ca0593fb31cd9939fd09f9174aa687b3199df0e1e2ac29db643a4fa38900364
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download