Analysis

  • max time kernel
    148s
  • max time network
    129s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 01:16

General

  • Target
    2026-06-27_f62eed11c071a81e82e38ed5dbb2c80b_elex_rincux_wannacry.exe
  • Size 64KB
  • Sample260629-bmtp5abs5r
  • SHA256 49575bd07c6ef52c3acccb1474b186c4a71e3830acae3771bc94d3fed2204aec
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Stormser, StormDDoS, StormAttack, Stormer

    Stormser aka StormDDoS, StormAttack, and Stormer is a Windows worm written in C++.

  • Detects Stormser aka Storm DDoS and StormAttack 15 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 15 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 8 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 5 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Modifies registry class 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-27_f62eed11c071a81e82e38ed5dbb2c80b_elex_rincux_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-27_f62eed11c071a81e82e38ed5dbb2c80b_elex_rincux_wannacry.exe"
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5160
    • C:\Windows\{65DA6541-74AF-4520-BE78-76A90D329EFB}.exe
      C:\Windows\{65DA6541-74AF-4520-BE78-76A90D329EFB}.exe
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2504
      • C:\Windows\{A3FBFFE6-4CD8-4b46-90D7-7630E88DA583}.exe
        C:\Windows\{A3FBFFE6-4CD8-4b46-90D7-7630E88DA583}.exe
        3⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Executes dropped EXE
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5904
        • C:\Windows\{3E35D1BF-040E-4c84-A359-F188713769D6}.exe
          C:\Windows\{3E35D1BF-040E-4c84-A359-F188713769D6}.exe
          4⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Executes dropped EXE
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2068
          • C:\Windows\{81AE954F-D184-4ba0-9EF6-6220B043281B}.exe
            C:\Windows\{81AE954F-D184-4ba0-9EF6-6220B043281B}.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:2812
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{3E35D~1.EXE > nul
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1448
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{A3FBF~1.EXE > nul
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4592
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{65DA6~1.EXE > nul
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5244
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1860
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1332
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5824
      • C:\Windows\{81AE954F-D184-4ba0-9EF6-6220B043281B}.exe
        "C:\Windows\{81AE954F-D184-4ba0-9EF6-6220B043281B}.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2608

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {3E35D1BF-040E-4c84-A359-F188713769D6}.exe

        • Path C:\Windows\{3E35D1BF-040E-4c84-A359-F188713769D6}.exe
        • Size 64KB
        • SHA256 71ae884f6e62ec41b1e76bf5ca9d86de4ff9fa5e503aa1896b5a7f919f0c130b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {65DA6541-74AF-4520-BE78-76A90D329EFB}.exe

        • Path C:\Windows\{65DA6541-74AF-4520-BE78-76A90D329EFB}.exe
        • Size 64KB
        • SHA256 02bc44bfeaab0926b7b68a1d9f533d95465c6e107f3006c79da9ff485323455a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {81AE954F-D184-4ba0-9EF6-6220B043281B}.exe

        • Path C:\Windows\{81AE954F-D184-4ba0-9EF6-6220B043281B}.exe
        • Size 64KB
        • SHA256 c7404cf8c5c7ee9da4d679323e07fe03879c5c6ec0e0e00fcca9e784af696aeb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {A3FBFFE6-4CD8-4b46-90D7-7630E88DA583}.exe

        • Path C:\Windows\{A3FBFFE6-4CD8-4b46-90D7-7630E88DA583}.exe
        • Size 64KB
        • SHA256 1fa64d3584e095eb7e44e676951415611f975d42b340b4d52bd7ad0d18f37a11
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2068-21-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2068-27-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2504-9-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2504-13-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2504-6-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2812-29-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5160-7-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5160-0-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5160-1-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5904-15-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5904-22-0x0000000000400000-0x0000000000410000-memory.dmp