Overview

overview

10

Static

static

10

2026-08-25...ry.exe

windows10-2004-x64

10

2026-08-25...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/08/2026, 08:35

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General

  • Target
    2026-08-25_cec49047cd549d5f38d8accae939ad0c_coinminer_elex_wannacry.exe
  • Size 5.0MB
  • Sample260826-khd9bavglb
  • SHA256 7f82e11ce1bb58a3f7e5d54ddba8656f37529ff2ea7c3f5b91c08e90ff1ca59e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoverycosmuransomwareupxworm

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++.

  • Renames multiple (345) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • UPX dump on OEP (original entry point) 4 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Drops file in Program Files directory 64 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-25_cec49047cd549d5f38d8accae939ad0c_coinminer_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-25_cec49047cd549d5f38d8accae939ad0c_coinminer_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3428

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-3797332335-34111092-3597280141-1000\desktop.ini.tmp
        • Size 5.0MB
        • SHA256 27061ad95d5200aee5209b587c2631b8bd4e9c9f939df291b4a25a57d5f820ea
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.dll.tmp
        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 5.1MB
        • SHA256 9ed1455e855092c968485c0ddbae930b31d253bd3b0057e82a788ef068a4697b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/3428-0-0x0000000000400000-0x000000000040B000-memory.dmp
        Download

        memory/3428-74-0x0000000000400000-0x000000000040B000-memory.dmp
        Download