Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/10/2026, 10:16

General

  • Target
    2026-10-23_823b9e4ac8ee97be7c4d90a50e0a8a98_elex_remcos_wannacry.exe
  • Size 60KB
  • Sample261023-mayzvsxvft
  • SHA256 70158a632b68de5da2a323886e1ef56ac6cbf425c146518454122b7a78c91f9f
  • 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\2026-10-23_823b9e4ac8ee97be7c4d90a50e0a8a98_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-23_823b9e4ac8ee97be7c4d90a50e0a8a98_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:5744
    • C:\Windows\{B06FF6FA-0397-426b-A6ED-D220D87BF759}.exe
      C:\Windows\{B06FF6FA-0397-426b-A6ED-D220D87BF759}.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:3636
      • C:\Windows\{76CAD6CD-7725-4ec8-98DB-EEE7D68BB811}.exe
        C:\Windows\{76CAD6CD-7725-4ec8-98DB-EEE7D68BB811}.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:4172
        • C:\Windows\{4C8D35F6-84DE-48a6-BDE9-1484526EF23F}.exe
          C:\Windows\{4C8D35F6-84DE-48a6-BDE9-1484526EF23F}.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:2276
          • C:\Windows\{74A841C8-BFC8-4977-A491-56181D3502A4}.exe
            C:\Windows\{74A841C8-BFC8-4977-A491-56181D3502A4}.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:2104
            • C:\Windows\{4EA301BF-649B-4387-9BE9-B0E45DB06084}.exe
              C:\Windows\{4EA301BF-649B-4387-9BE9-B0E45DB06084}.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:3360
              • C:\Windows\{B4F360B2-03E0-458f-92A4-5F8F8CF83120}.exe
                C:\Windows\{B4F360B2-03E0-458f-92A4-5F8F8CF83120}.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:3388
                • C:\Windows\{23533B65-551E-4002-878F-D44C9CCBB12E}.exe
                  C:\Windows\{23533B65-551E-4002-878F-D44C9CCBB12E}.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:4600
                  • C:\Windows\{A2E07348-A021-44cd-9435-DFFAAF578B2C}.exe
                    C:\Windows\{A2E07348-A021-44cd-9435-DFFAAF578B2C}.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:3516
                    • C:\Windows\{317B5826-559A-483f-8559-B6A142823899}.exe
                      C:\Windows\{317B5826-559A-483f-8559-B6A142823899}.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:5392
                      • C:\Windows\{B276B7EC-3220-4d74-8EEB-BBF14CE5BC06}.exe
                        C:\Windows\{B276B7EC-3220-4d74-8EEB-BBF14CE5BC06}.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:2516
                        • C:\Windows\{43694DB2-087B-4da1-B933-C2C90C1067C2}.exe
                          C:\Windows\{43694DB2-087B-4da1-B933-C2C90C1067C2}.exe
                          12⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:3788
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c del C:\Windows\{B276B~1.EXE > nul
                          12⤵
                          • Executes a command shell one-liner
                          • System Location Discovery: System Language Discovery
                          PID:4436
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c del C:\Windows\{317B5~1.EXE > nul
                        11⤵
                        • Executes a command shell one-liner
                        • System Location Discovery: System Language Discovery
                        PID:4524
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c del C:\Windows\{A2E07~1.EXE > nul
                      10⤵
                      • Executes a command shell one-liner
                      • System Location Discovery: System Language Discovery
                      PID:1160
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c del C:\Windows\{23533~1.EXE > nul
                    9⤵
                    • Executes a command shell one-liner
                    • System Location Discovery: System Language Discovery
                    PID:1156
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c del C:\Windows\{B4F36~1.EXE > nul
                  8⤵
                  • Executes a command shell one-liner
                  • System Location Discovery: System Language Discovery
                  PID:3508
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{4EA30~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:4888
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{74A84~1.EXE > nul
              6⤵
              • 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\{4C8D3~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:4272
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{76CAD~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:2848
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{B06FF~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:5504
    • 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:4652

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {23533B65-551E-4002-878F-D44C9CCBB12E}.exe

        • Path C:\Windows\{23533B65-551E-4002-878F-D44C9CCBB12E}.exe
        • Size 60KB
        • SHA256 7ad0c3022025a33fd093b3d6ffc3345c948bba67c470897f3742a87f23db144f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {317B5826-559A-483f-8559-B6A142823899}.exe

        • Path C:\Windows\{317B5826-559A-483f-8559-B6A142823899}.exe
        • Size 60KB
        • SHA256 a9a670f88b74d533b4eedbb215760e334a299f447bb31ab766d6c87c3ee769bb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {43694DB2-087B-4da1-B933-C2C90C1067C2}.exe

        • Path C:\Windows\{43694DB2-087B-4da1-B933-C2C90C1067C2}.exe
        • Size 60KB
        • SHA256 006851b15192021598f2f3f32fa4d1bc2d0b4a2f360e8d47f7f584b0c21f1da3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {4C8D35F6-84DE-48a6-BDE9-1484526EF23F}.exe

        • Path C:\Windows\{4C8D35F6-84DE-48a6-BDE9-1484526EF23F}.exe
        • Size 60KB
        • SHA256 21363adafd757c50e90930b42cf4742e5eda7a49d51c09cf4081072e553d1ad8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {4EA301BF-649B-4387-9BE9-B0E45DB06084}.exe

        • Path C:\Windows\{4EA301BF-649B-4387-9BE9-B0E45DB06084}.exe
        • Size 60KB
        • SHA256 511fa5727c95899122bd5acce2b8b2298a344233e9636b9c2e6213b29a896a32
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {74A841C8-BFC8-4977-A491-56181D3502A4}.exe

        • Path C:\Windows\{74A841C8-BFC8-4977-A491-56181D3502A4}.exe
        • Size 60KB
        • SHA256 ca569a63d83da0a28f25c2db52b8b42d376aaba1db3238b45235cd3b32a44d80
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {76CAD6CD-7725-4ec8-98DB-EEE7D68BB811}.exe

        • Path C:\Windows\{76CAD6CD-7725-4ec8-98DB-EEE7D68BB811}.exe
        • Size 60KB
        • SHA256 02c0781242bc9c9b1e0d23d1a598ca3a92411c359a695521ffbff828ce73b140
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {A2E07348-A021-44cd-9435-DFFAAF578B2C}.exe

        • Path C:\Windows\{A2E07348-A021-44cd-9435-DFFAAF578B2C}.exe
        • Size 60KB
        • SHA256 07e6517dd23449214f64d82211c709f0ee7713b8f348296d5d40fae2f94fbc51
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {B06FF6FA-0397-426b-A6ED-D220D87BF759}.exe

        • Path C:\Windows\{B06FF6FA-0397-426b-A6ED-D220D87BF759}.exe
        • Size 60KB
        • SHA256 731d32800663de5127fb0d316443e61d028de0e6f755f5390931e197d7d34744
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {B276B7EC-3220-4d74-8EEB-BBF14CE5BC06}.exe

        • Path C:\Windows\{B276B7EC-3220-4d74-8EEB-BBF14CE5BC06}.exe
        • Size 60KB
        • SHA256 376a8b1c2e565e091b7d45a75b1cb9ee04966f693d0cdfc7715140e1cfdd141b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {B4F360B2-03E0-458f-92A4-5F8F8CF83120}.exe

        • Path C:\Windows\{B4F360B2-03E0-458f-92A4-5F8F8CF83120}.exe
        • Size 60KB
        • SHA256 02ce0d0816685c4433e9942c8e1e8ea0fb18c25a305ff69d6b4f535bdf143841
        • MD5 SHA1 SHA512 SSDEEP TLSH