Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/09/2026, 22:48

General

  • Target
    2026-09-12_7e9e5b4c729caa2b7334a0fbe648a7d3_elex_ramnit_wannacry.exe
  • Size 596KB
  • Sample260912-2repwawhnc
  • SHA256 878acd16f0058ec97f849c05d098799d3f1383cd1c05c21955d213a12107b7b9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • UPX dump on OEP (original entry point) 4 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-12_7e9e5b4c729caa2b7334a0fbe648a7d3_elex_ramnit_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-12_7e9e5b4c729caa2b7334a0fbe648a7d3_elex_ramnit_wannacry.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1156
    • C:\Users\Admin\AppData\Local\Temp\2026-09-12_7e9e5b4c729caa2b7334a0fbe648a7d3_elex_ramnit_wannacrySrv.exe
      C:\Users\Admin\AppData\Local\Temp\2026-09-12_7e9e5b4c729caa2b7334a0fbe648a7d3_elex_ramnit_wannacrySrv.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3544
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3544 -s 332
        3⤵
        • Program crash
        PID:4364
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3544 -ip 3544
    1⤵
      PID:5764

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          2026-09-12_7e9e5b4c729caa2b7334a0fbe648a7d3_elex_ramnit_wannacrySrv.exe

          • Path C:\Users\Admin\AppData\Local\Temp\2026-09-12_7e9e5b4c729caa2b7334a0fbe648a7d3_elex_ramnit_wannacrySrv.exe
          • Size 111KB
          • SHA256 08a295a1b3ba4d785f4ed83578140f0487c39dabc9be1bd58f2d2964aae0c9bd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1156-0-0x0000000000400000-0x000000000049A000-memory.dmp

          memory/1156-9-0x0000000000400000-0x000000000049A000-memory.dmp

          memory/3544-5-0x0000000000400000-0x000000000042E000-memory.dmp

          memory/3544-7-0x0000000000400000-0x000000000042E000-memory.dmp

          memory/3544-6-0x0000000002060000-0x000000000206F000-memory.dmp