Analysis

  • max time kernel
    149s
  • max time network
    129s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 18:50

General

  • Target
    2026-08-20_c22cff1be74676208d0240e03ea244af_elex_upatre_wannacry.exe
  • Size 59KB
  • Sample260820-xhbjmstdnc
  • SHA256 6c5cc0f73241a546e9569f3179033b0ba63b682213d5916ded78c6b0102ed81c
  • 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\2026-08-20_c22cff1be74676208d0240e03ea244af_elex_upatre_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-20_c22cff1be74676208d0240e03ea244af_elex_upatre_wannacry.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3968
    • 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:5128

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 59KB
        • SHA256 8392e896b2c8459d01138caf4101d5212fda684945ae898a2fbe4b2828639afe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3968-0-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/3968-10-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/5128-11-0x0000000000400000-0x000000000040C000-memory.dmp