Analysis

  • max time kernel
    148s
  • 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, 10:30

General

  • Target
    2026-10-22_66fd04c6adeede861e795958743e4705_elex_remcos_wannacry.exe
  • Size 60KB
  • Sample261024-mjst7sa19l
  • SHA256 3e45322ea5253e08526b97016dae24adc12a71e61f3e511e3fc9fe49c596b521
  • 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 36 IoCs
  • Custom signature
    Detects Windows executables referencing non-Windows User-Agents 36 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_66fd04c6adeede861e795958743e4705_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-22_66fd04c6adeede861e795958743e4705_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:1096
    • C:\Windows\{375D729C-5692-41bb-BE23-B50D0CFC50D5}.exe
      C:\Windows\{375D729C-5692-41bb-BE23-B50D0CFC50D5}.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:4676
      • C:\Windows\{EAD09BC9-AA5E-4c44-A290-A5354048F191}.exe
        C:\Windows\{EAD09BC9-AA5E-4c44-A290-A5354048F191}.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:1308
        • C:\Windows\{5BC9D66F-56BB-476f-8546-978B4FACD1E5}.exe
          C:\Windows\{5BC9D66F-56BB-476f-8546-978B4FACD1E5}.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:2272
          • C:\Windows\{C2BFE1EE-A077-4521-8CE2-29F79F2BDE35}.exe
            C:\Windows\{C2BFE1EE-A077-4521-8CE2-29F79F2BDE35}.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:4092
            • C:\Windows\{DB4A8591-5F83-4fe3-9C56-0F42A78946E6}.exe
              C:\Windows\{DB4A8591-5F83-4fe3-9C56-0F42A78946E6}.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:2896
              • C:\Windows\{17D81708-D486-45f6-948F-8DC9A2CDC15B}.exe
                C:\Windows\{17D81708-D486-45f6-948F-8DC9A2CDC15B}.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:3176
                • C:\Windows\{59ECD83F-D6F3-44c0-82B9-A4EB292205A0}.exe
                  C:\Windows\{59ECD83F-D6F3-44c0-82B9-A4EB292205A0}.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:6028
                  • C:\Windows\{B5C5C926-3EC1-48d2-A3BD-B42C85928297}.exe
                    C:\Windows\{B5C5C926-3EC1-48d2-A3BD-B42C85928297}.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:6068
                    • C:\Windows\{3AB3E6CB-F1D7-410d-A1B7-07EBE8394396}.exe
                      C:\Windows\{3AB3E6CB-F1D7-410d-A1B7-07EBE8394396}.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:1204
                      • C:\Windows\{9224C7A9-F323-472a-9CB0-8018094184CD}.exe
                        C:\Windows\{9224C7A9-F323-472a-9CB0-8018094184CD}.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:3436
                        • C:\Windows\{CEEF2A6C-264B-4829-9024-383201244B54}.exe
                          C:\Windows\{CEEF2A6C-264B-4829-9024-383201244B54}.exe
                          12⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:460
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c del C:\Windows\{9224C~1.EXE > nul
                          12⤵
                          • Executes a command shell one-liner
                          • System Location Discovery: System Language Discovery
                          PID:5792
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c del C:\Windows\{3AB3E~1.EXE > nul
                        11⤵
                        • Executes a command shell one-liner
                        • System Location Discovery: System Language Discovery
                        PID:920
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c del C:\Windows\{B5C5C~1.EXE > nul
                      10⤵
                      • Executes a command shell one-liner
                      • System Location Discovery: System Language Discovery
                      PID:4656
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c del C:\Windows\{59ECD~1.EXE > nul
                    9⤵
                    • Executes a command shell one-liner
                    • System Location Discovery: System Language Discovery
                    PID:4576
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c del C:\Windows\{17D81~1.EXE > nul
                  8⤵
                  • Executes a command shell one-liner
                  • System Location Discovery: System Language Discovery
                  PID:1248
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{DB4A8~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:5028
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{C2BFE~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:2016
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{5BC9D~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:1396
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{EAD09~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:3756
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{375D7~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:4324
    • 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:2204

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {17D81708-D486-45f6-948F-8DC9A2CDC15B}.exe

        • Path C:\Windows\{17D81708-D486-45f6-948F-8DC9A2CDC15B}.exe
        • Size 60KB
        • SHA256 905739d7c17974e7b626d8af926375385f808417ec7c3d74f976c1bdaf1b3b46
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {375D729C-5692-41bb-BE23-B50D0CFC50D5}.exe

        • Path C:\Windows\{375D729C-5692-41bb-BE23-B50D0CFC50D5}.exe
        • Size 60KB
        • SHA256 427ec78689913e8e950ea7d00b229881802af222a3a6f5ac6917667fc9f104b6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {3AB3E6CB-F1D7-410d-A1B7-07EBE8394396}.exe

        • Path C:\Windows\{3AB3E6CB-F1D7-410d-A1B7-07EBE8394396}.exe
        • Size 60KB
        • SHA256 01233bb5cccf8f41713a1191d4fea908d96e777fcfca53cac464ef4ba237814b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {59ECD83F-D6F3-44c0-82B9-A4EB292205A0}.exe

        • Path C:\Windows\{59ECD83F-D6F3-44c0-82B9-A4EB292205A0}.exe
        • Size 60KB
        • SHA256 08b50c2559ff52b63cd704658af7134286ef4c1417ff57f67a5e5df115f7c9e7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {5BC9D66F-56BB-476f-8546-978B4FACD1E5}.exe

        • Path C:\Windows\{5BC9D66F-56BB-476f-8546-978B4FACD1E5}.exe
        • Size 60KB
        • SHA256 a8b23dacb1ebae260cf2c18137d9846ac630357937b2dcc0ebafaf2d22577410
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {9224C7A9-F323-472a-9CB0-8018094184CD}.exe

        • Path C:\Windows\{9224C7A9-F323-472a-9CB0-8018094184CD}.exe
        • Size 60KB
        • SHA256 0d09cacd99f41abcae984ac3e5af7cfc757f2e05f50cfa5f0056d931c55094fe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {B5C5C926-3EC1-48d2-A3BD-B42C85928297}.exe

        • Path C:\Windows\{B5C5C926-3EC1-48d2-A3BD-B42C85928297}.exe
        • Size 60KB
        • SHA256 e487de45a821ced3652571efecf4c81d20161deeab1c5fc1b35aa86d45f5a0a2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {C2BFE1EE-A077-4521-8CE2-29F79F2BDE35}.exe

        • Path C:\Windows\{C2BFE1EE-A077-4521-8CE2-29F79F2BDE35}.exe
        • Size 60KB
        • SHA256 34edf7bac83aee0d10dda8b9630969632aea2628121decf4519760a0d7ea479e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {CEEF2A6C-264B-4829-9024-383201244B54}.exe

        • Path C:\Windows\{CEEF2A6C-264B-4829-9024-383201244B54}.exe
        • Size 60KB
        • SHA256 45675e8d648207e9e7e6932b40373572ae9b36b9e35e4d4b65f65ba92f687556
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {DB4A8591-5F83-4fe3-9C56-0F42A78946E6}.exe

        • Path C:\Windows\{DB4A8591-5F83-4fe3-9C56-0F42A78946E6}.exe
        • Size 60KB
        • SHA256 6170bd9b55022edea623fa836103f96b8f2f357a0e3265baa41c1da0baa560d4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {EAD09BC9-AA5E-4c44-A290-A5354048F191}.exe

        • Path C:\Windows\{EAD09BC9-AA5E-4c44-A290-A5354048F191}.exe
        • Size 60KB
        • SHA256 10801ae2d7a95bd4bac7b683ac9fc06520064d5dd1299f80d37489f0002508bd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/460-78-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/1096-7-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/1096-0-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/1096-1-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/1204-69-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/1204-64-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/1308-20-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/1308-14-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2272-27-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2272-21-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2272-23-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2896-35-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2896-41-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/3176-48-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/3176-43-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/3436-77-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/3436-71-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4092-29-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4092-36-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4676-6-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4676-12-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/6028-50-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/6028-55-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/6068-63-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/6068-57-0x0000000000400000-0x0000000000410000-memory.dmp