Analysis

  • max time kernel
    149s
  • max time network
    115s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    05/05/2026, 19:40

General

  • Target
    2026-05-05_6fc03a66afa3a6e8a9aea228f7a92657_elex_upatre_wannacry.exe
  • Size 56KB
  • Sample260505-ydtp4aev9s
  • SHA256 9fabffc1f276db2a07ce7d97beba9128dba051a37b88ff7936242281b13502c7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detects executables built or packed with MPress PE compressor 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-05_6fc03a66afa3a6e8a9aea228f7a92657_elex_upatre_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-05_6fc03a66afa3a6e8a9aea228f7a92657_elex_upatre_wannacry.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4260
    • C:\Users\Admin\AppData\Local\Temp\btkba.exe
      "C:\Users\Admin\AppData\Local\Temp\btkba.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5088

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        btkba.exe

        • Path C:\Users\Admin\AppData\Local\Temp\btkba.exe
        • Size 57KB
        • SHA256 041dd7fd2af7566bde3ff4b869ee1cc3ed65e297e716a17b8a6102c53fe217bd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4260-0-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/4260-12-0x0000000000980000-0x00000000009FB000-memory.dmp

        memory/4260-13-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/5088-15-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/5088-14-0x0000000000880000-0x00000000008FB000-memory.dmp