Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/10/2026, 11:42

General

  • Target
    2026-10-22_5e4bf611974829ec2ac21dff1bacdd43_elex_remcos_wannacry.exe
  • Size 60KB
  • Sample261024-nvcssstye1
  • SHA256 eff9de4a712dc33b56a044a1c67637059c7ef518775603cb377884b9c15280b8
  • 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 11 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 11 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 22 IoCs

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

  • Executes dropped EXE 11 IoCs
  • Drops file in Windows directory 11 IoCs
  • Executes a command shell one-liner 1 TTPs 11 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 23 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 11 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-22_5e4bf611974829ec2ac21dff1bacdd43_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-22_5e4bf611974829ec2ac21dff1bacdd43_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:1364
    • C:\Windows\{34471364-31CA-4382-A325-1E4E4FEDFC2A}.exe
      C:\Windows\{34471364-31CA-4382-A325-1E4E4FEDFC2A}.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:4680
      • C:\Windows\{382FD905-FDBD-4f7e-97C9-93B92CA779CF}.exe
        C:\Windows\{382FD905-FDBD-4f7e-97C9-93B92CA779CF}.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:5964
        • C:\Windows\{63C8C395-2D7B-43cd-88BF-BE140590DA5D}.exe
          C:\Windows\{63C8C395-2D7B-43cd-88BF-BE140590DA5D}.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:4860
          • C:\Windows\{5E8A6AA7-FF41-4fa9-B637-E0DC44272948}.exe
            C:\Windows\{5E8A6AA7-FF41-4fa9-B637-E0DC44272948}.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:6092
            • C:\Windows\{E321BE2E-6231-4f58-B186-EC52E389CFEC}.exe
              C:\Windows\{E321BE2E-6231-4f58-B186-EC52E389CFEC}.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:2984
              • C:\Windows\{2F5741F9-8AB3-42ac-AEA9-F050545AC346}.exe
                C:\Windows\{2F5741F9-8AB3-42ac-AEA9-F050545AC346}.exe
                7⤵
                • 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:5300
                • C:\Windows\{EEAF9DE2-0669-4837-8151-98F985F64FFE}.exe
                  C:\Windows\{EEAF9DE2-0669-4837-8151-98F985F64FFE}.exe
                  8⤵
                  • 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:5836
                  • C:\Windows\{BE4C8079-39A7-47a8-A7C3-C4955994E888}.exe
                    C:\Windows\{BE4C8079-39A7-47a8-A7C3-C4955994E888}.exe
                    9⤵
                    • 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:3300
                    • C:\Windows\{6F3076FD-9EF0-47be-ABA2-9820BE2AE433}.exe
                      C:\Windows\{6F3076FD-9EF0-47be-ABA2-9820BE2AE433}.exe
                      10⤵
                      • 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:3852
                      • C:\Windows\{73DB4978-C86D-4f54-B8BF-6F5AA8E8C872}.exe
                        C:\Windows\{73DB4978-C86D-4f54-B8BF-6F5AA8E8C872}.exe
                        11⤵
                        • 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:1468
                        • C:\Windows\{28BE4384-5EA3-43e5-9DE8-1DD6596F5C4E}.exe
                          C:\Windows\{28BE4384-5EA3-43e5-9DE8-1DD6596F5C4E}.exe
                          12⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:4172
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c del C:\Windows\{73DB4~1.EXE > nul
                          12⤵
                          • Executes a command shell one-liner
                          • System Location Discovery: System Language Discovery
                          PID:1764
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c del C:\Windows\{6F307~1.EXE > nul
                        11⤵
                        • Executes a command shell one-liner
                        • System Location Discovery: System Language Discovery
                        PID:4788
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c del C:\Windows\{BE4C8~1.EXE > nul
                      10⤵
                      • Executes a command shell one-liner
                      • System Location Discovery: System Language Discovery
                      PID:5316
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c del C:\Windows\{EEAF9~1.EXE > nul
                    9⤵
                    • Executes a command shell one-liner
                    • System Location Discovery: System Language Discovery
                    PID:3732
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c del C:\Windows\{2F574~1.EXE > nul
                  8⤵
                  • Executes a command shell one-liner
                  • System Location Discovery: System Language Discovery
                  PID:4300
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{E321B~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:2444
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{5E8A6~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:3808
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{63C8C~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:404
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{382FD~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:4128
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{34471~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:2388
    • 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:2668

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {28BE4384-5EA3-43e5-9DE8-1DD6596F5C4E}.exe

        • Path C:\Windows\{28BE4384-5EA3-43e5-9DE8-1DD6596F5C4E}.exe
        • Size 60KB
        • SHA256 68bff9e82bb63960520379bb7580e5edb73c878117830a1fa5f8be969b4c1b85
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {2F5741F9-8AB3-42ac-AEA9-F050545AC346}.exe

        • Path C:\Windows\{2F5741F9-8AB3-42ac-AEA9-F050545AC346}.exe
        • Size 60KB
        • SHA256 87f23ed66369247d3e85787153ec3b96199ecdfc5fbb6f4ce727272764f9a4be
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {34471364-31CA-4382-A325-1E4E4FEDFC2A}.exe

        • Path C:\Windows\{34471364-31CA-4382-A325-1E4E4FEDFC2A}.exe
        • Size 60KB
        • SHA256 6734a4e973f1e274cface46ca51b9d71e595be58b6cfe594e2055f31a97dc9b6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {382FD905-FDBD-4f7e-97C9-93B92CA779CF}.exe

        • Path C:\Windows\{382FD905-FDBD-4f7e-97C9-93B92CA779CF}.exe
        • Size 60KB
        • SHA256 a8fc4c28e0f5d74045fa9db89dfa28b3b0fd7a93c31d9658a9360cf0efeb1959
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {5E8A6AA7-FF41-4fa9-B637-E0DC44272948}.exe

        • Path C:\Windows\{5E8A6AA7-FF41-4fa9-B637-E0DC44272948}.exe
        • Size 60KB
        • SHA256 58aac9e31d1c34fad354557958564cc9d3eedf0aaca90878af2f8e5e183eb192
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {63C8C395-2D7B-43cd-88BF-BE140590DA5D}.exe

        • Path C:\Windows\{63C8C395-2D7B-43cd-88BF-BE140590DA5D}.exe
        • Size 60KB
        • SHA256 01c18c8f2d4e0f02131e02b5267ad3b390bb399bd3f6689197869c885d3e81fe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {6F3076FD-9EF0-47be-ABA2-9820BE2AE433}.exe

        • Path C:\Windows\{6F3076FD-9EF0-47be-ABA2-9820BE2AE433}.exe
        • Size 60KB
        • SHA256 20d26d67f1771865b83681488dc111b19b4de8fbea828cfface51c163329f25a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {73DB4978-C86D-4f54-B8BF-6F5AA8E8C872}.exe

        • Path C:\Windows\{73DB4978-C86D-4f54-B8BF-6F5AA8E8C872}.exe
        • Size 60KB
        • SHA256 ce930fb98bff62573aac2432bdf8d63ebb1467cab20089a3546550f05b33389b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {BE4C8079-39A7-47a8-A7C3-C4955994E888}.exe

        • Path C:\Windows\{BE4C8079-39A7-47a8-A7C3-C4955994E888}.exe
        • Size 60KB
        • SHA256 43442c873efb85855246d471d7b872912c7bc5045f3aa8a1701ffb5f03ecbfae
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {E321BE2E-6231-4f58-B186-EC52E389CFEC}.exe

        • Path C:\Windows\{E321BE2E-6231-4f58-B186-EC52E389CFEC}.exe
        • Size 60KB
        • SHA256 9801d176479e211b708893e3e76bd90e608a7a9d421ef408a0acf698c3b09aff
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {EEAF9DE2-0669-4837-8151-98F985F64FFE}.exe

        • Path C:\Windows\{EEAF9DE2-0669-4837-8151-98F985F64FFE}.exe
        • Size 60KB
        • SHA256 1cff8e2890dd83b581da55924bb355e28c1ef8491548dee1d69a3907addae3ec
        • MD5 SHA1 SHA512 SSDEEP TLSH