Analysis

  • max time kernel
    148s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/10/2026, 16:03

General

  • Target
    2026-10-19_77e9f189e45dd4351eef6d9198f41188_elex_remcos_wannacry.exe
  • Size 60KB
  • Sample261020-thfltassby
  • SHA256 7d33bb3fa6f213addc85678cb40224cb877388a6a3280aa1e6f10bdef29beda9
  • 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\2026-10-19_77e9f189e45dd4351eef6d9198f41188_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-19_77e9f189e45dd4351eef6d9198f41188_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:5072
    • C:\Windows\{425B2548-56C4-494f-9F1F-E15D89F6B981}.exe
      C:\Windows\{425B2548-56C4-494f-9F1F-E15D89F6B981}.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:4888
      • C:\Windows\{50940B76-AE72-49c5-8074-D676E2783120}.exe
        C:\Windows\{50940B76-AE72-49c5-8074-D676E2783120}.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:5040
        • C:\Windows\{587217CA-29C3-4f31-B92B-D3DD714967DA}.exe
          C:\Windows\{587217CA-29C3-4f31-B92B-D3DD714967DA}.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:4540
          • C:\Windows\{1F01CEC0-8E4E-449b-A9C0-D05C60FB3352}.exe
            C:\Windows\{1F01CEC0-8E4E-449b-A9C0-D05C60FB3352}.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:1624
            • C:\Windows\{9B5B462B-524F-46be-95C3-5D0163E40F8D}.exe
              C:\Windows\{9B5B462B-524F-46be-95C3-5D0163E40F8D}.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:5456
              • C:\Windows\{6D409700-BD4B-42ce-9A4E-8EDDE1FC5613}.exe
                C:\Windows\{6D409700-BD4B-42ce-9A4E-8EDDE1FC5613}.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:3364
                • C:\Windows\{63C7B3A0-B4CE-4085-B6F5-D2C7292803BA}.exe
                  C:\Windows\{63C7B3A0-B4CE-4085-B6F5-D2C7292803BA}.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:5092
                  • C:\Windows\{1A415B96-1BB9-47a1-88D2-9EED4C88DDB1}.exe
                    C:\Windows\{1A415B96-1BB9-47a1-88D2-9EED4C88DDB1}.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:5968
                    • C:\Windows\{D9C4B2C1-8D4A-4bc3-AAA3-EF15D519670A}.exe
                      C:\Windows\{D9C4B2C1-8D4A-4bc3-AAA3-EF15D519670A}.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:5036
                      • C:\Windows\{F1BB310D-A26C-4e77-ACA0-1711A1481F25}.exe
                        C:\Windows\{F1BB310D-A26C-4e77-ACA0-1711A1481F25}.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:3880
                        • C:\Windows\{16F9DAAC-8689-412e-B031-29FA46B6DF29}.exe
                          C:\Windows\{16F9DAAC-8689-412e-B031-29FA46B6DF29}.exe
                          12⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:5312
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c del C:\Windows\{F1BB3~1.EXE > nul
                          12⤵
                          • Executes a command shell one-liner
                          • System Location Discovery: System Language Discovery
                          PID:796
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c del C:\Windows\{D9C4B~1.EXE > nul
                        11⤵
                        • Executes a command shell one-liner
                        • System Location Discovery: System Language Discovery
                        PID:3540
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c del C:\Windows\{1A415~1.EXE > nul
                      10⤵
                      • Executes a command shell one-liner
                      • System Location Discovery: System Language Discovery
                      PID:4040
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c del C:\Windows\{63C7B~1.EXE > nul
                    9⤵
                    • Executes a command shell one-liner
                    • System Location Discovery: System Language Discovery
                    PID:4544
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c del C:\Windows\{6D409~1.EXE > nul
                  8⤵
                  • Executes a command shell one-liner
                  • System Location Discovery: System Language Discovery
                  PID:2112
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{9B5B4~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:1664
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{1F01C~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:6032
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{58721~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:5904
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{50940~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:4960
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{425B2~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:248
    • 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:5644

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {16F9DAAC-8689-412e-B031-29FA46B6DF29}.exe

        • Path C:\Windows\{16F9DAAC-8689-412e-B031-29FA46B6DF29}.exe
        • Size 60KB
        • SHA256 3916c74444ae0180bc56d73ee228ffc4530982e513911907da4fbe918799eb06
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {1A415B96-1BB9-47a1-88D2-9EED4C88DDB1}.exe

        • Path C:\Windows\{1A415B96-1BB9-47a1-88D2-9EED4C88DDB1}.exe
        • Size 60KB
        • SHA256 83a50dd2ed17249c047cdb21e81b422df6e86a91b473e290170a8ab903485e60
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {1F01CEC0-8E4E-449b-A9C0-D05C60FB3352}.exe

        • Path C:\Windows\{1F01CEC0-8E4E-449b-A9C0-D05C60FB3352}.exe
        • Size 60KB
        • SHA256 d96664afbd6060cdcd56fe9c01da6c0e6b814a21bb198d81b8bbe83438d79b31
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {425B2548-56C4-494f-9F1F-E15D89F6B981}.exe

        • Path C:\Windows\{425B2548-56C4-494f-9F1F-E15D89F6B981}.exe
        • Size 60KB
        • SHA256 f69c18bc67545145b542ae769ae4805b9f5f34519c5d8f9d02bffdff702932e1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {50940B76-AE72-49c5-8074-D676E2783120}.exe

        • Path C:\Windows\{50940B76-AE72-49c5-8074-D676E2783120}.exe
        • Size 60KB
        • SHA256 e826a9971deaed4f56f83c7043d87e5fbe5e2006e1a341d62da206297dd071c8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {587217CA-29C3-4f31-B92B-D3DD714967DA}.exe

        • Path C:\Windows\{587217CA-29C3-4f31-B92B-D3DD714967DA}.exe
        • Size 60KB
        • SHA256 5d623edb5ae2b0c30ac42d7132471532eb8938db6643cc77be2ac5a1044d1d23
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {63C7B3A0-B4CE-4085-B6F5-D2C7292803BA}.exe

        • Path C:\Windows\{63C7B3A0-B4CE-4085-B6F5-D2C7292803BA}.exe
        • Size 60KB
        • SHA256 669cfc5424dbe1537775d03a15eb458ddb17c5ec93e25c2f14b07de88ab378de
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {6D409700-BD4B-42ce-9A4E-8EDDE1FC5613}.exe

        • Path C:\Windows\{6D409700-BD4B-42ce-9A4E-8EDDE1FC5613}.exe
        • Size 60KB
        • SHA256 f0821869474b06175501d15b98e0b9fa104fcff29803a0ecc7130116420f1a68
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {9B5B462B-524F-46be-95C3-5D0163E40F8D}.exe

        • Path C:\Windows\{9B5B462B-524F-46be-95C3-5D0163E40F8D}.exe
        • Size 60KB
        • SHA256 c6fb133112fcfb54bcd41537e18da0e6ab47563704dd8a6337ac5e0f258e24e1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {D9C4B2C1-8D4A-4bc3-AAA3-EF15D519670A}.exe

        • Path C:\Windows\{D9C4B2C1-8D4A-4bc3-AAA3-EF15D519670A}.exe
        • Size 60KB
        • SHA256 c9415e88f9b0c64b8d34973f4c1f751c7b37170f669708381e993529836f8b19
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {F1BB310D-A26C-4e77-ACA0-1711A1481F25}.exe

        • Path C:\Windows\{F1BB310D-A26C-4e77-ACA0-1711A1481F25}.exe
        • Size 60KB
        • SHA256 af0977010dfd8189270151805f7343d00755e8401a322ea807c3c734df5a8041
        • MD5 SHA1 SHA512 SSDEEP TLSH