Overview

overview

10

Static

static

10

2026-08-08...ry.exe

windows10-2004-x64

10

2026-08-08...ry.exe

windows11-ltsc_2024-x64

10

Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 11:59

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General

  • Target
    2026-08-08_1ef2246fd44ee2c64492bb5d903f7912_elex_wannacry.exe
  • Size 5.6MB
  • Sample260808-n5vflazyfx
  • SHA256 8287e22aabf64691eb70bb8357df6dad1e53244a48fee0821fe70beb5f44ba2d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoverycosmuransomwareworm

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++.

  • Detects executables packed with eXPressor 4 IoCs
  • Renames multiple (294) files with added filename extension

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

    ransomware
  • 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\2026-08-08_1ef2246fd44ee2c64492bb5d903f7912_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-08_1ef2246fd44ee2c64492bb5d903f7912_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:1084

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-1079202589-886135813-2527035092-1000\desktop.ini.tmp
        • Size 5.6MB
        • SHA256 5d00f6638b5985b3be259a0747d2c5535b4aaa00f779e030de905c51c2bb4161
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.dll.tmp
        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 5.7MB
        • SHA256 1edd1e00423a11759e6048f4605a4fa3478dcf17159846aee8fde99766fb9a4e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1084-0-0x0000000000400000-0x000000000040A000-memory.dmp
        Download

        memory/1084-72-0x0000000000400000-0x000000000040A000-memory.dmp
        Download