Overview

overview

10

Static

static

10

2026-04-15...ry.exe

windows10-2004-x64

10

2026-04-15...ry.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    97s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    15/04/2026, 17:02

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General

  • Target
    2026-04-15_bf6fc2f7ef2108b483355847d922ce22_elex_wannacry.exe
  • Size 716KB
  • Sample260415-vkdexaez4p
  • SHA256 aa4e7f336e85f528fa14294ec45c197a44049c3be2b4177225694c480cb72def
  • 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++.

  • Custom signature
    Detects executables packed with eXPressor 4 IoCs
  • Renames multiple (2539) 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\2026-04-15_bf6fc2f7ef2108b483355847d922ce22_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-15_bf6fc2f7ef2108b483355847d922ce22_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5060

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini.tmp
        • Path C:\$Recycle.Bin\S-1-5-21-600123060-2148212387-2211176695-1000\desktop.ini.tmp
        • Size 716KB
        • SHA256 bc8c039aca36233f95623fd7489a8b77bb2399fd949e25db855e1fa0dde36f2a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        7-zip.dll.tmp
        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 815KB
        • SHA256 da24e9e99d0991b171d0f3134621667cc553bff3efee68410c3cf27fec61157d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/5060-0-0x0000000000400000-0x000000000040A000-memory.dmp
        Download

        memory/5060-389-0x0000000000400000-0x000000000040A000-memory.dmp
        Download