Analysis

  • max time kernel
    148s
  • max time network
    140s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/10/2026, 19:27

General

  • Target
    2026-10-28_c16a8186257762556c46bc252d38fedf_elex_remcos_wannacry.exe
  • Size 76KB
  • Sample261029-x552rsswbv
  • SHA256 147337d48c0cc37285b25adb29dd27c1d4d0c62a904e84809842763951eed38f
  • 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\2026-10-28_c16a8186257762556c46bc252d38fedf_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-28_c16a8186257762556c46bc252d38fedf_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:5224
    • C:\Windows\{CC6AEA59-B453-41b9-9904-EB264D572D17}.exe
      C:\Windows\{CC6AEA59-B453-41b9-9904-EB264D572D17}.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:4528
      • C:\Windows\{D57416FB-1938-478d-A9D7-E24C453BFFDA}.exe
        C:\Windows\{D57416FB-1938-478d-A9D7-E24C453BFFDA}.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:4892
        • C:\Windows\{4A146D37-2611-46b6-8494-5CAAF1D18E5C}.exe
          C:\Windows\{4A146D37-2611-46b6-8494-5CAAF1D18E5C}.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:248
          • C:\Windows\{D74DAB0B-DC9E-42a3-8C07-224E1B201AAF}.exe
            C:\Windows\{D74DAB0B-DC9E-42a3-8C07-224E1B201AAF}.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:2108
            • C:\Windows\{9B7998E6-6AE1-4ca2-A90C-1421628EBBA2}.exe
              C:\Windows\{9B7998E6-6AE1-4ca2-A90C-1421628EBBA2}.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:2200
              • C:\Windows\{7D944917-AF5A-4277-BAC9-BBE8ADCD832C}.exe
                C:\Windows\{7D944917-AF5A-4277-BAC9-BBE8ADCD832C}.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:3892
                • C:\Windows\{1B925F63-993B-4f87-99EF-DD57F03AFF26}.exe
                  C:\Windows\{1B925F63-993B-4f87-99EF-DD57F03AFF26}.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:1964
                  • C:\Windows\{90C36916-AB36-4b01-B17D-CFD065B8C02E}.exe
                    C:\Windows\{90C36916-AB36-4b01-B17D-CFD065B8C02E}.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:5232
                    • C:\Windows\{0DDDA673-4007-4d22-9820-29C535C87A0A}.exe
                      C:\Windows\{0DDDA673-4007-4d22-9820-29C535C87A0A}.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:1472
                      • C:\Windows\{1786358F-05C6-4d39-8189-B8D8146E16DD}.exe
                        C:\Windows\{1786358F-05C6-4d39-8189-B8D8146E16DD}.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:3864
                        • C:\Windows\{B5E88B0F-490B-477b-89B1-6DDACD930AD2}.exe
                          C:\Windows\{B5E88B0F-490B-477b-89B1-6DDACD930AD2}.exe
                          12⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:1396
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c del C:\Windows\{17863~1.EXE > nul
                          12⤵
                          • Executes a command shell one-liner
                          • System Location Discovery: System Language Discovery
                          PID:2656
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c del C:\Windows\{0DDDA~1.EXE > nul
                        11⤵
                        • Executes a command shell one-liner
                        • System Location Discovery: System Language Discovery
                        PID:2156
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c del C:\Windows\{90C36~1.EXE > nul
                      10⤵
                      • Executes a command shell one-liner
                      • System Location Discovery: System Language Discovery
                      PID:1556
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c del C:\Windows\{1B925~1.EXE > nul
                    9⤵
                    • 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\{7D944~1.EXE > nul
                  8⤵
                  • Executes a command shell one-liner
                  • System Location Discovery: System Language Discovery
                  PID:4220
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{9B799~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:4440
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{D74DA~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:5608
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{4A146~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:6024
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{D5741~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:3660
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{CC6AE~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:5776
    • 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:4628

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {0DDDA673-4007-4d22-9820-29C535C87A0A}.exe

        • Path C:\Windows\{0DDDA673-4007-4d22-9820-29C535C87A0A}.exe
        • Size 76KB
        • SHA256 aac22a39f8e585b6f928a19134ea4f394d46deb0687aa11c7119c628059a8301
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {1786358F-05C6-4d39-8189-B8D8146E16DD}.exe

        • Path C:\Windows\{1786358F-05C6-4d39-8189-B8D8146E16DD}.exe
        • Size 76KB
        • SHA256 0d75bb095238e118fbab40a94bd306c44e02381326e260adf4b14ea3c1f796af
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {1B925F63-993B-4f87-99EF-DD57F03AFF26}.exe

        • Path C:\Windows\{1B925F63-993B-4f87-99EF-DD57F03AFF26}.exe
        • Size 76KB
        • SHA256 4325f6da37f74d3488630c190e8d46b54417c75cf7c7cf3e1377cb336b7e306d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {4A146D37-2611-46b6-8494-5CAAF1D18E5C}.exe

        • Path C:\Windows\{4A146D37-2611-46b6-8494-5CAAF1D18E5C}.exe
        • Size 76KB
        • SHA256 8c991b5d7fa9fbf9c0fdb2a7b07ccc9e2e75ad6c0f0f8c2dfba4451e9595d59d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {7D944917-AF5A-4277-BAC9-BBE8ADCD832C}.exe

        • Path C:\Windows\{7D944917-AF5A-4277-BAC9-BBE8ADCD832C}.exe
        • Size 76KB
        • SHA256 d71fb49bf652492dcb5693921780a908470aeb129b8fc043350ff412bb0c77fd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {90C36916-AB36-4b01-B17D-CFD065B8C02E}.exe

        • Path C:\Windows\{90C36916-AB36-4b01-B17D-CFD065B8C02E}.exe
        • Size 76KB
        • SHA256 13f00281f083766ecd83363fef0fe4c126def3d53bbaf9980779256209d285cf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {9B7998E6-6AE1-4ca2-A90C-1421628EBBA2}.exe

        • Path C:\Windows\{9B7998E6-6AE1-4ca2-A90C-1421628EBBA2}.exe
        • Size 76KB
        • SHA256 866d008e64ebcaec2f671f57a7f9a30555c97cc672ca0237f9a0818a6f06640f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {B5E88B0F-490B-477b-89B1-6DDACD930AD2}.exe

        • Path C:\Windows\{B5E88B0F-490B-477b-89B1-6DDACD930AD2}.exe
        • Size 76KB
        • SHA256 dc47c57484d9aecfc16f20702b17f8602865ca585a5fc1a50eea84fa60da5aee
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {CC6AEA59-B453-41b9-9904-EB264D572D17}.exe

        • Path C:\Windows\{CC6AEA59-B453-41b9-9904-EB264D572D17}.exe
        • Size 76KB
        • SHA256 e1a6fb774fa7757e3ae0de0b3da1d3b77d4363e238fd5c14880792883cbb34b8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {D57416FB-1938-478d-A9D7-E24C453BFFDA}.exe

        • Path C:\Windows\{D57416FB-1938-478d-A9D7-E24C453BFFDA}.exe
        • Size 76KB
        • SHA256 397ec166292848c9300b19b1254a2a034eb7572f04f09ddfcfe0697c25906141
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {D74DAB0B-DC9E-42a3-8C07-224E1B201AAF}.exe

        • Path C:\Windows\{D74DAB0B-DC9E-42a3-8C07-224E1B201AAF}.exe
        • Size 76KB
        • SHA256 9739e0ffcb2ceeb366cb2440d5445637d6c8da157be3a657ad6b7974a58c2578
        • MD5 SHA1 SHA512 SSDEEP TLSH