Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/09/2026, 17:29

General

  • Target
    2026-09-13_19070d7eb7fd91db0b5db5fb69518686_elex_wannacry.exe
  • Size 2.3MB
  • Sample260913-v21xjas1hx
  • SHA256 9ed865366b59a535453e79a53d077c3309469a58db2b1c5904a720564af4c263
  • 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 (585) 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\2026-09-13_19070d7eb7fd91db0b5db5fb69518686_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-13_19070d7eb7fd91db0b5db5fb69518686_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:2976
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:4196

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          desktop.ini.tmp

          • Path C:\$Recycle.Bin\S-1-5-21-461973139-3212354679-1508698038-1000\desktop.ini.tmp
          • Size 2.3MB
          • SHA256 88f9a81a4963332d646f59d674c1a8735d4225f988166dd33f3f7ceb1913434b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          7-zip.dll.tmp

          • Path C:\Program Files\7-Zip\7-zip.dll.tmp
          • Size 2.4MB
          • SHA256 05239880a8712e5d20581c52e8eb3300044793acf1c10847a67c800f08ebbaf8
          • MD5 SHA1 SHA512 SSDEEP TLSH