Analysis

  • max time kernel
    148s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/10/2026, 18:55

General

  • Target
    2026-10-26_43050d7a59f467ae10db0160547c5f3d_elex_remcos_wannacry.exe
  • Size 64KB
  • Sample261027-xk95zsty8m
  • SHA256 b931751b1be61279c3f3d0684ecb0f3c657d4313e6331e45265c90fdcf5abe2b
  • 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\2026-10-26_43050d7a59f467ae10db0160547c5f3d_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-26_43050d7a59f467ae10db0160547c5f3d_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:4756
    • C:\Windows\{B015C6C3-577C-48f6-A935-7A53CAD7F80A}.exe
      C:\Windows\{B015C6C3-577C-48f6-A935-7A53CAD7F80A}.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:1848
      • C:\Windows\{6408EDCB-A728-4138-B2FF-1B14F953E0FE}.exe
        C:\Windows\{6408EDCB-A728-4138-B2FF-1B14F953E0FE}.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:4528
        • C:\Windows\{4A31A5AE-F1D7-4e39-A56E-930F5EA7AF99}.exe
          C:\Windows\{4A31A5AE-F1D7-4e39-A56E-930F5EA7AF99}.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:5980
          • C:\Windows\{B3CA469E-9BBA-4114-981B-F53ED598B96C}.exe
            C:\Windows\{B3CA469E-9BBA-4114-981B-F53ED598B96C}.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:6024
            • C:\Windows\{1BF58027-1656-4828-A49F-54B5D763D7AB}.exe
              C:\Windows\{1BF58027-1656-4828-A49F-54B5D763D7AB}.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:4432
              • C:\Windows\{23CE3490-C345-45e4-AC58-BC20BDDAF4D8}.exe
                C:\Windows\{23CE3490-C345-45e4-AC58-BC20BDDAF4D8}.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:5420
                • C:\Windows\{FB3119EE-722F-438d-9C10-0A169E01CE30}.exe
                  C:\Windows\{FB3119EE-722F-438d-9C10-0A169E01CE30}.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:5280
                  • C:\Windows\{8F961FF5-E554-4c4e-A426-EC00ABCEA46F}.exe
                    C:\Windows\{8F961FF5-E554-4c4e-A426-EC00ABCEA46F}.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:3420
                    • C:\Windows\{B137BB1F-89EB-4fa1-8A6B-7E9B8956CDBA}.exe
                      C:\Windows\{B137BB1F-89EB-4fa1-8A6B-7E9B8956CDBA}.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:5216
                      • C:\Windows\{86515AF7-5C10-4895-9228-6E38BE11D4A4}.exe
                        C:\Windows\{86515AF7-5C10-4895-9228-6E38BE11D4A4}.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:5680
                        • C:\Windows\{FD2967A7-DCF9-45e2-8595-1A9543524DFF}.exe
                          C:\Windows\{FD2967A7-DCF9-45e2-8595-1A9543524DFF}.exe
                          12⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:5632
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c del C:\Windows\{86515~1.EXE > nul
                          12⤵
                          • Executes a command shell one-liner
                          • System Location Discovery: System Language Discovery
                          PID:1788
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c del C:\Windows\{B137B~1.EXE > nul
                        11⤵
                        • Executes a command shell one-liner
                        • System Location Discovery: System Language Discovery
                        PID:5616
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c del C:\Windows\{8F961~1.EXE > nul
                      10⤵
                      • Executes a command shell one-liner
                      • System Location Discovery: System Language Discovery
                      PID:1660
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c del C:\Windows\{FB311~1.EXE > nul
                    9⤵
                    • Executes a command shell one-liner
                    • System Location Discovery: System Language Discovery
                    PID:5396
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c del C:\Windows\{23CE3~1.EXE > nul
                  8⤵
                  • Executes a command shell one-liner
                  • System Location Discovery: System Language Discovery
                  PID:5204
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{1BF58~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:2216
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{B3CA4~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:5664
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{4A31A~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:5976
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{6408E~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:2212
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{B015C~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:6076
    • 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:4068

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {1BF58027-1656-4828-A49F-54B5D763D7AB}.exe

        • Path C:\Windows\{1BF58027-1656-4828-A49F-54B5D763D7AB}.exe
        • Size 64KB
        • SHA256 bb15536208c9289a72a0447b90f050a97031c12d8bb256eaa0b8b64a32887314
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {23CE3490-C345-45e4-AC58-BC20BDDAF4D8}.exe

        • Path C:\Windows\{23CE3490-C345-45e4-AC58-BC20BDDAF4D8}.exe
        • Size 64KB
        • SHA256 e01d7cfd4b08479b36b48cfcc8e8a8dcaaf2332da82af4713e8109e1e5ab3056
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {4A31A5AE-F1D7-4e39-A56E-930F5EA7AF99}.exe

        • Path C:\Windows\{4A31A5AE-F1D7-4e39-A56E-930F5EA7AF99}.exe
        • Size 64KB
        • SHA256 5f2359e65cc2c76779039ffd78309c7be67fcae8e1a77f0461ef68bf79747243
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {6408EDCB-A728-4138-B2FF-1B14F953E0FE}.exe

        • Path C:\Windows\{6408EDCB-A728-4138-B2FF-1B14F953E0FE}.exe
        • Size 64KB
        • SHA256 239e37abbb7d94678468613f6364de1a5f2644a74ff71fbf0f38920f94012094
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {86515AF7-5C10-4895-9228-6E38BE11D4A4}.exe

        • Path C:\Windows\{86515AF7-5C10-4895-9228-6E38BE11D4A4}.exe
        • Size 64KB
        • SHA256 7d8a765688d165d544011c6cf4e3a299b795d983e13a45a27e40b92165c37622
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {8F961FF5-E554-4c4e-A426-EC00ABCEA46F}.exe

        • Path C:\Windows\{8F961FF5-E554-4c4e-A426-EC00ABCEA46F}.exe
        • Size 64KB
        • SHA256 3908258229a0fc0d163a76aec941043918381d1f12ec7c5693bbb62d0ef32bd1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {B015C6C3-577C-48f6-A935-7A53CAD7F80A}.exe

        • Path C:\Windows\{B015C6C3-577C-48f6-A935-7A53CAD7F80A}.exe
        • Size 64KB
        • SHA256 f37a46056128a753fc9c12beae0116418a2bce1a4fac1a7a71d17160022edd7f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {B137BB1F-89EB-4fa1-8A6B-7E9B8956CDBA}.exe

        • Path C:\Windows\{B137BB1F-89EB-4fa1-8A6B-7E9B8956CDBA}.exe
        • Size 64KB
        • SHA256 bfbf2f2949f640722c2d9402a6e1d5a4526a7b7deb303ecd058d68b74b1e7913
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {B3CA469E-9BBA-4114-981B-F53ED598B96C}.exe

        • Path C:\Windows\{B3CA469E-9BBA-4114-981B-F53ED598B96C}.exe
        • Size 64KB
        • SHA256 f8b7723bc7c0a7c2f05aaa402b4890b5f2d9ab3c247ad465d65cfdbc0d566899
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {FB3119EE-722F-438d-9C10-0A169E01CE30}.exe

        • Path C:\Windows\{FB3119EE-722F-438d-9C10-0A169E01CE30}.exe
        • Size 64KB
        • SHA256 56d13d853303cdb299cffa13993de1c2f3c64520d5de613e964947043871437d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {FD2967A7-DCF9-45e2-8595-1A9543524DFF}.exe

        • Path C:\Windows\{FD2967A7-DCF9-45e2-8595-1A9543524DFF}.exe
        • Size 64KB
        • SHA256 1df322d388d6cfcfcabcb2cd7f29e536ee9611701d6fb3d6f9917f5ce08e146b
        • MD5 SHA1 SHA512 SSDEEP TLSH