Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/08/2026, 01:19

General

  • Target
    2026-08-01_1072ac07c4a018b69a0bd12c57f83cd0_elex_wannacry.exe
  • Size 85KB
  • Sample260802-bpyf4a1gmf
  • SHA256 23c655f830f7623ae49b29409d1c739efb418185e65bc75de723863dce80296c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 2 IoCs

    Cosmu is a worm written in C++.

  • Renames multiple (4885) files with added filename extension

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

  • 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-01_1072ac07c4a018b69a0bd12c57f83cd0_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-01_1072ac07c4a018b69a0bd12c57f83cd0_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3508

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-668679576-120646659-2289335452-1000\desktop.ini.tmp
        • Size 85KB
        • SHA256 db62b242a4aa3597d3eaa4be648ac6e452fba984eaa976a0c4d578019e1c23a8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.dll.tmp

        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 184KB
        • SHA256 43e4ad37c4190f02e505728607c7c054a1840308545670c1f52f0240a68a1c87
        • MD5 SHA1 SHA512 SSDEEP TLSH