Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    17/10/2026, 10:45

General

  • Target
    2026-10-16_9ef4e6a129fc407926d66e9e67e264be_elex_remcos_wannacry.exe
  • Size 60KB
  • Sample261017-mtjpaa11f1
  • SHA256 bf4a8b181de12c9258461a610c9d13e8d93a2141e033dfc956f0b8c8cdb97645
  • 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\2026-10-16_9ef4e6a129fc407926d66e9e67e264be_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-16_9ef4e6a129fc407926d66e9e67e264be_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:4404
    • C:\Windows\{B17F8B35-F3F6-4891-B140-10036A975A7B}.exe
      C:\Windows\{B17F8B35-F3F6-4891-B140-10036A975A7B}.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:964
      • C:\Windows\{888AF520-90F1-4a82-861C-ACAC1019DB1C}.exe
        C:\Windows\{888AF520-90F1-4a82-861C-ACAC1019DB1C}.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:2852
        • C:\Windows\{077BD1E1-B89A-497d-88B7-A26BDB93C5CE}.exe
          C:\Windows\{077BD1E1-B89A-497d-88B7-A26BDB93C5CE}.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:5840
          • C:\Windows\{53F8B44C-0AFD-41fe-A419-2883C8083171}.exe
            C:\Windows\{53F8B44C-0AFD-41fe-A419-2883C8083171}.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:260
            • C:\Windows\{B20A9C92-D2DC-459e-9EB7-F8E9C207B985}.exe
              C:\Windows\{B20A9C92-D2DC-459e-9EB7-F8E9C207B985}.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:5884
              • C:\Windows\{177296B0-58A8-44de-B53F-5FD058E97536}.exe
                C:\Windows\{177296B0-58A8-44de-B53F-5FD058E97536}.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:1416
                • C:\Windows\{5E938922-EFF3-4873-8757-1F2512F03076}.exe
                  C:\Windows\{5E938922-EFF3-4873-8757-1F2512F03076}.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:4960
                  • C:\Windows\{8B2FFA82-F25E-42c4-8D00-7E9E57F32695}.exe
                    C:\Windows\{8B2FFA82-F25E-42c4-8D00-7E9E57F32695}.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:4188
                    • C:\Windows\{AA2E4210-71F6-4014-A804-5BF1742BE217}.exe
                      C:\Windows\{AA2E4210-71F6-4014-A804-5BF1742BE217}.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:3300
                      • C:\Windows\{78894744-9AE1-4252-9E57-DC8B8B57D03B}.exe
                        C:\Windows\{78894744-9AE1-4252-9E57-DC8B8B57D03B}.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:3708
                        • C:\Windows\{A37765BA-50CA-4ece-A3FA-121BA4C20F28}.exe
                          C:\Windows\{A37765BA-50CA-4ece-A3FA-121BA4C20F28}.exe
                          12⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:3024
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c del C:\Windows\{78894~1.EXE > nul
                          12⤵
                          • Executes a command shell one-liner
                          • System Location Discovery: System Language Discovery
                          PID:4920
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c del C:\Windows\{AA2E4~1.EXE > nul
                        11⤵
                        • 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\{8B2FF~1.EXE > nul
                      10⤵
                      • Executes a command shell one-liner
                      • System Location Discovery: System Language Discovery
                      PID:5320
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c del C:\Windows\{5E938~1.EXE > nul
                    9⤵
                    • Executes a command shell one-liner
                    • System Location Discovery: System Language Discovery
                    PID:3460
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c del C:\Windows\{17729~1.EXE > nul
                  8⤵
                  • Executes a command shell one-liner
                  • System Location Discovery: System Language Discovery
                  PID:5876
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{B20A9~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:1220
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{53F8B~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:1088
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{077BD~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:264
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{888AF~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:4644
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{B17F8~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:2536
    • 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:4544

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {077BD1E1-B89A-497d-88B7-A26BDB93C5CE}.exe

        • Path C:\Windows\{077BD1E1-B89A-497d-88B7-A26BDB93C5CE}.exe
        • Size 60KB
        • SHA256 5493d0a00a736408c55bbf445fdc2b9932f19f6ef5a2db2438c4932a8afd9ef4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {177296B0-58A8-44de-B53F-5FD058E97536}.exe

        • Path C:\Windows\{177296B0-58A8-44de-B53F-5FD058E97536}.exe
        • Size 60KB
        • SHA256 27a6f3d41032cb8230c925320ca79c315ed6211b27878edbaa23ab50082a3822
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {53F8B44C-0AFD-41fe-A419-2883C8083171}.exe

        • Path C:\Windows\{53F8B44C-0AFD-41fe-A419-2883C8083171}.exe
        • Size 60KB
        • SHA256 aa3d086f0cf96c142e6bbad648421a945140b333570e62ee92a86a1bf1ceee7e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {5E938922-EFF3-4873-8757-1F2512F03076}.exe

        • Path C:\Windows\{5E938922-EFF3-4873-8757-1F2512F03076}.exe
        • Size 60KB
        • SHA256 74eaf9e99a4326a7ec712917efd939380b034f962caf0bdd20e9a1aba31002a3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {78894744-9AE1-4252-9E57-DC8B8B57D03B}.exe

        • Path C:\Windows\{78894744-9AE1-4252-9E57-DC8B8B57D03B}.exe
        • Size 60KB
        • SHA256 3a222b2dd8d916855cc371848101c1f3c9e2ebcdee4929b3e400a0cfe1ae9afb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {888AF520-90F1-4a82-861C-ACAC1019DB1C}.exe

        • Path C:\Windows\{888AF520-90F1-4a82-861C-ACAC1019DB1C}.exe
        • Size 60KB
        • SHA256 3f477c691de1bdf01e160443423d205c2bf928649a714c421d5cf41f6a48574f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {8B2FFA82-F25E-42c4-8D00-7E9E57F32695}.exe

        • Path C:\Windows\{8B2FFA82-F25E-42c4-8D00-7E9E57F32695}.exe
        • Size 60KB
        • SHA256 eda9bcc09b46b70af9da452de8736b17b16b65225d0597e00b2e6daaab4be70e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {A37765BA-50CA-4ece-A3FA-121BA4C20F28}.exe

        • Path C:\Windows\{A37765BA-50CA-4ece-A3FA-121BA4C20F28}.exe
        • Size 60KB
        • SHA256 305053660c431e75252e775f503394503c9cb58ce43beb1fd90fbd061404d04b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {AA2E4210-71F6-4014-A804-5BF1742BE217}.exe

        • Path C:\Windows\{AA2E4210-71F6-4014-A804-5BF1742BE217}.exe
        • Size 60KB
        • SHA256 96e0cbc4d0f221f0944a04ec63238b659c5cff49db5ef77ec8a1c0f4a488c7eb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {B17F8B35-F3F6-4891-B140-10036A975A7B}.exe

        • Path C:\Windows\{B17F8B35-F3F6-4891-B140-10036A975A7B}.exe
        • Size 60KB
        • SHA256 463bd0670bc255a468e67e7878cae06081b01e74b28e7f167793b16b9da351e6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {B20A9C92-D2DC-459e-9EB7-F8E9C207B985}.exe

        • Path C:\Windows\{B20A9C92-D2DC-459e-9EB7-F8E9C207B985}.exe
        • Size 60KB
        • SHA256 493ae0366732d0d189d7d62bb405d9b86bfdcc7f93c1b6360193d4c7f39e9d4e
        • MD5 SHA1 SHA512 SSDEEP TLSH