Analysis

  • max time kernel
    148s
  • max time network
    113s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 04:50

General

  • Target
    2026-08-04_f7a9d9030ec17c46a4173527ea726b47_elex_wannacry.exe
  • Size 136KB
  • Sample260804-fgj1ysdc24
  • SHA256 d250842efe5d999ea291c8d94335fb803361dc9f6d343d165dfe4db233f3e37b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 3 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-04_f7a9d9030ec17c46a4173527ea726b47_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-04_f7a9d9030ec17c46a4173527ea726b47_elex_wannacry.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5804
    • C:\Users\Admin\AppData\Local\Temp\eidolon.exe
      "C:\Users\Admin\AppData\Local\Temp\eidolon.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      PID:2608
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Windows\temp\tttdelzzz.bat" "
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:1740
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Windows\temp\tttbrozzz.bat" "
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2584
      • C:\Users\Admin\AppData\Local\Temp\2026-08-04_f7a9d9030ec17c46a4173527ea726b47_elex_wannacry.exe
        "C:\Users\Admin\AppData\Local\Temp\2026-08-04_f7a9d9030ec17c46a4173527ea726b47_elex_wannacry.exe"
        3⤵
        • Executes dropped EXE
        • Modifies system certificate store
        PID:4976
      • C:\Users\Admin\AppData\Local\Temp\USBServers32.exe
        "C:\Users\Admin\AppData\Local\Temp\USBServers32.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2688
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\windows\currentVersion\run /v USBServers32 /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\USBServers32.exe" /f
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1724
          • C:\Windows\SysWOW64\reg.exe
            reg add HKEY_CURRENT_USER\Software\Microsoft\windows\currentVersion\run /v USBServers32 /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\USBServers32.exe" /f
            5⤵
            • Adds Run key to start application
            • System Location Discovery: System Language Discovery
            PID:5984
  • C:\Users\Admin\AppData\Local\Temp\USBServers32.exe
    C:\Users\Admin\AppData\Local\Temp\USBServers32.exe
    1⤵
    • Executes dropped EXE
    PID:6008

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        USBServers32.exe

        • Path C:\Users\Admin\AppData\Local\Temp\USBServers32.exe
        • Size 54KB
        • SHA256 8f53ab3cd172f685568e0cbb51eb7dfd2389a5fe6aaf47d0aa7d823253e673ee
        • MD5 SHA1 SHA512 SSDEEP TLSH

        eidolon.exe

        • Path C:\Users\Admin\AppData\Local\Temp\eidolon.exe
        • Size 24KB
        • SHA256 a1bf9bc23f97fee5a83ddcb3ba4d8fbbcc70fb2d871b325261be0ded72196fe9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tttbrozzz.bat

        • Path C:\Windows\Temp\tttbrozzz.bat
        • Size 598B
        • SHA256 5c428dec66401ff1b656eab05f86abb964749223ff1fa05df1c54044dc046834
        • MD5 SHA1 SHA512 TLSH

        tttdelzzz.bat

        • Path C:\Windows\Temp\tttdelzzz.bat
        • Size 313B
        • SHA256 b400bbb2db4b17e6f38a48721befb3224e4d1a581e1f225d2dd35e583cd2884e
        • MD5 SHA1 SHA512 TLSH

        Server32History.dat

        • Path C:\Windows\temp\Server32History.dat
        • Size 81KB
        • SHA256 abbb2bd38f8e5cfd1fca428e27de421b77beb09f7bb8fdb7d91018a6bce7b098
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4976-30-0x0000000001680000-0x0000000001690000-memory.dmp

        memory/4976-33-0x0000000001680000-0x0000000001690000-memory.dmp

        memory/4976-43-0x000000001D140000-0x000000001D60E000-memory.dmp

        memory/4976-44-0x000000001D6B0000-0x000000001D74C000-memory.dmp

        memory/4976-45-0x0000000002FE0000-0x0000000002FE8000-memory.dmp