Analysis

  • max time kernel
    149s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    24/10/2026, 03:54

General

  • Target
    2026-10-22_96efc6187174d861ab91e80b94e307f9_elex_remcos_wannacry.exe
  • Size 79KB
  • Sample261024-egf4maeb88
  • SHA256 2f121fbdc1f46a337fc027773abf519e804da985b7787893289a718819765050
  • 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 6 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 6 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 12 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Drops file in Windows directory 6 IoCs
  • Executes a command shell one-liner 1 TTPs 6 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 13 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 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-22_96efc6187174d861ab91e80b94e307f9_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-22_96efc6187174d861ab91e80b94e307f9_elex_remcos_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:436
    • C:\Windows\{1AC561A9-52DB-40ca-922C-88CA08FEB40D}.exe
      C:\Windows\{1AC561A9-52DB-40ca-922C-88CA08FEB40D}.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:3284
      • C:\Windows\{CECF04F3-1032-41cb-B5C8-6CD59EB9A3BC}.exe
        C:\Windows\{CECF04F3-1032-41cb-B5C8-6CD59EB9A3BC}.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:540
        • C:\Windows\{87AEBB1F-7340-4d43-8225-CA440DD87642}.exe
          C:\Windows\{87AEBB1F-7340-4d43-8225-CA440DD87642}.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:3504
          • C:\Windows\{303A191D-8459-45b4-BC1A-5EC8279A0926}.exe
            C:\Windows\{303A191D-8459-45b4-BC1A-5EC8279A0926}.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:2264
            • C:\Windows\{84E1D7D6-7F71-4ed0-9305-5A2A7648EB56}.exe
              C:\Windows\{84E1D7D6-7F71-4ed0-9305-5A2A7648EB56}.exe
              6⤵
              • 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:3712
              • C:\Windows\{F796C9BB-77AF-4764-9CED-558F07AE7A19}.exe
                C:\Windows\{F796C9BB-77AF-4764-9CED-558F07AE7A19}.exe
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:928
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{84E1D~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:376
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{303A1~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:4684
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{87AEB~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:2512
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{CECF0~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:1600
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{1AC56~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:1488
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-1~1.EXE > nul
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:2876

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {1AC561A9-52DB-40ca-922C-88CA08FEB40D}.exe

        • Path C:\Windows\{1AC561A9-52DB-40ca-922C-88CA08FEB40D}.exe
        • Size 79KB
        • SHA256 6ebb8a6703f31f9c4a2a3ac721c243bbfa5349ab72d5a493d213f900c0010a8b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {303A191D-8459-45b4-BC1A-5EC8279A0926}.exe

        • Path C:\Windows\{303A191D-8459-45b4-BC1A-5EC8279A0926}.exe
        • Size 79KB
        • SHA256 96025822dcff6d74d3b855d3db7d222e51539548f3d1927e63ae2644b569879b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {84E1D7D6-7F71-4ed0-9305-5A2A7648EB56}.exe

        • Path C:\Windows\{84E1D7D6-7F71-4ed0-9305-5A2A7648EB56}.exe
        • Size 79KB
        • SHA256 2d0cbed9cdecce6a4204294ee51ee0ba071b18b0ecd9a9fa2fe463f01545cefa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {87AEBB1F-7340-4d43-8225-CA440DD87642}.exe

        • Path C:\Windows\{87AEBB1F-7340-4d43-8225-CA440DD87642}.exe
        • Size 79KB
        • SHA256 0294d7f6c6e8adede017737a404780a8416d3e5afe6a620b943f617626d8bf92
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {CECF04F3-1032-41cb-B5C8-6CD59EB9A3BC}.exe

        • Path C:\Windows\{CECF04F3-1032-41cb-B5C8-6CD59EB9A3BC}.exe
        • Size 79KB
        • SHA256 d4d7a83e350b37d0e0635cd8665b6d633142698c538280fcbd754c50df7e525c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {F796C9BB-77AF-4764-9CED-558F07AE7A19}.exe

        • Path C:\Windows\{F796C9BB-77AF-4764-9CED-558F07AE7A19}.exe
        • Size 79KB
        • SHA256 5992ccec93a64301118dc812f8f7944e9c6e8d1c2101898f157108662c8ce08d
        • MD5 SHA1 SHA512 SSDEEP TLSH