Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/08/2026, 17:15

General

  • Target
    2026-08-02_ad21f5bc746c1a4bbd5abf2d722ee0ba_elex_remcos_rincux_wannacry.exe
  • Size 64KB
  • Sample260802-vstf4axdpf
  • SHA256 6564d5a61814d68a46ec960f7e613fb7a7d52c128fec8ad44ff57045df8d0150
  • 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 16 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 16 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 10 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 5 IoCs
  • Executes a command shell one-liner 1 TTPs 5 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 11 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-02_ad21f5bc746c1a4bbd5abf2d722ee0ba_elex_remcos_rincux_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-02_ad21f5bc746c1a4bbd5abf2d722ee0ba_elex_remcos_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:4720
    • C:\Windows\{C58E97FC-1190-4008-923B-65CD02D9D2EA}.exe
      C:\Windows\{C58E97FC-1190-4008-923B-65CD02D9D2EA}.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:5368
      • C:\Windows\{8EA11E4D-7DE4-4d62-8498-ED1A11A0ED0A}.exe
        C:\Windows\{8EA11E4D-7DE4-4d62-8498-ED1A11A0ED0A}.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:432
        • C:\Windows\{D3CB4CA3-C81E-41f1-97E4-A60E6D217714}.exe
          C:\Windows\{D3CB4CA3-C81E-41f1-97E4-A60E6D217714}.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:3328
          • C:\Windows\{E4FED6DB-921A-4fdf-8BCD-DAB8B7C7C5F3}.exe
            C:\Windows\{E4FED6DB-921A-4fdf-8BCD-DAB8B7C7C5F3}.exe
            5⤵
            • 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:2732
            • C:\Windows\{283CE742-0C0B-4275-B3A2-721251DCFB46}.exe
              C:\Windows\{283CE742-0C0B-4275-B3A2-721251DCFB46}.exe
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:3296
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{E4FED~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:4572
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{D3CB4~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:3872
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{8EA11~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:2712
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{C58E9~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:2284
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:5560

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {283CE742-0C0B-4275-B3A2-721251DCFB46}.exe

        • Path C:\Windows\{283CE742-0C0B-4275-B3A2-721251DCFB46}.exe
        • Size 64KB
        • SHA256 42979e9fcaf5b6fbb894435cc6a05bb0cd48b501ae5fddae190be007a27a5083
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {8EA11E4D-7DE4-4d62-8498-ED1A11A0ED0A}.exe

        • Path C:\Windows\{8EA11E4D-7DE4-4d62-8498-ED1A11A0ED0A}.exe
        • Size 64KB
        • SHA256 2364ddd93e942c3f9a74424f3c4a7124e3d739007abc353343862463cf4ca187
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {C58E97FC-1190-4008-923B-65CD02D9D2EA}.exe

        • Path C:\Windows\{C58E97FC-1190-4008-923B-65CD02D9D2EA}.exe
        • Size 64KB
        • SHA256 216e72656f226f24c9abdd572030fd27c8e0cb7122ba2c056932977188cfc908
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {D3CB4CA3-C81E-41f1-97E4-A60E6D217714}.exe

        • Path C:\Windows\{D3CB4CA3-C81E-41f1-97E4-A60E6D217714}.exe
        • Size 64KB
        • SHA256 1872cc719a255342d579d797608737c79ded91b3816003ee7ae3073d08d03627
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {E4FED6DB-921A-4fdf-8BCD-DAB8B7C7C5F3}.exe

        • Path C:\Windows\{E4FED6DB-921A-4fdf-8BCD-DAB8B7C7C5F3}.exe
        • Size 64KB
        • SHA256 99b1182f6cc215e2b59a6ff1df605e493597c789d39b1e55395dc073d255d3bb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/432-16-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2732-27-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2732-23-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/3296-29-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/3328-18-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/3328-22-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4720-0-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4720-6-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4720-1-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5368-12-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5368-5-0x0000000000400000-0x0000000000410000-memory.dmp