Overview

overview

10

Static

static

10

2026-08-27...ry.exe

windows10-2004-x64

10

2026-08-27...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    27/08/2026, 07:24

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General

  • Target
    2026-08-27_d8d7796b8eb5521e417df7b3a69b0c5b_coinminer_elex_wannacry.exe
  • Size 417KB
  • Sample260827-h8nvbsem21
  • SHA256 19c0474040cd5c783fcb2150f2e34387ae30d9e8e5de5b3db8d22a56ce6809d1
  • 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 (4861) 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
  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 2 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 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-27_d8d7796b8eb5521e417df7b3a69b0c5b_coinminer_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-27_d8d7796b8eb5521e417df7b3a69b0c5b_coinminer_elex_wannacry.exe"
    1⤵
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Windows\SysWOW64\Zombie.exe
      "C:\Windows\system32\Zombie.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      PID:4824
    • C:\Users\Admin\AppData\Local\Temp\_LogTransport2.exe
      "_LogTransport2.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:416

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.exe
        • Path C:\$Recycle.Bin\S-1-5-21-2937465464-4167303362-2236413517-1000\desktop.ini.exe
        • Size 72KB
        • SHA256 b90db03562853ed18b5badc0b4788c28c23611b40a0b89ce5ec21645b9c41706
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _LogTransport2.exe
        • Path C:\Users\Admin\AppData\Local\Temp\_LogTransport2.exe
        • Size 345KB
        • SHA256 db197e4e2d60b8161a5cf5c41a9d3d1d5cc694c19fe96d71e33747dd20c1d4b3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        Zombie.exe
        • Path C:\Windows\SysWOW64\Zombie.exe
        • Size 72KB
        • SHA256 581f7f99dff2613512fc1ee8113e9704a63d5120bcb89b295b04d7853916b730
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1896-0-0x0000000000400000-0x000000000040B000-memory.dmp
        Download

        memory/4824-9-0x0000000000400000-0x000000000040B000-memory.dmp
        Download