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
    27/10/2026, 09:11

General

  • Target
    2026-10-26_afc84810a82b6a1e6e7031bfc964543f_elex_remcos_wannacry.exe
  • Size 60KB
  • Sample261027-k5439acy5p
  • SHA256 9e883a8054098d36985a8a1f6a3158bd9dd54cd278770c04a4585091f98c3938
  • 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
  • Custom signature
    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_afc84810a82b6a1e6e7031bfc964543f_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-26_afc84810a82b6a1e6e7031bfc964543f_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:4864
    • C:\Windows\{CBB5AD85-6038-4d6c-9C62-1D144F7918D5}.exe
      C:\Windows\{CBB5AD85-6038-4d6c-9C62-1D144F7918D5}.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:4312
      • C:\Windows\{211D10E7-C3E5-48a6-8AAC-646D6E10DC7E}.exe
        C:\Windows\{211D10E7-C3E5-48a6-8AAC-646D6E10DC7E}.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:4280
        • C:\Windows\{9269161C-7CF2-481b-B83B-402719F1DD70}.exe
          C:\Windows\{9269161C-7CF2-481b-B83B-402719F1DD70}.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:1948
          • C:\Windows\{C5572994-7026-495a-9F06-08393DD61C5A}.exe
            C:\Windows\{C5572994-7026-495a-9F06-08393DD61C5A}.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:5156
            • C:\Windows\{74658E85-DF92-4bd4-A994-F6D9ECC18BA6}.exe
              C:\Windows\{74658E85-DF92-4bd4-A994-F6D9ECC18BA6}.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:4724
              • C:\Windows\{11095402-7261-4912-B246-89DDABABC981}.exe
                C:\Windows\{11095402-7261-4912-B246-89DDABABC981}.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:4420
                • C:\Windows\{28A8322E-E136-4522-8E0F-419AD43D56CF}.exe
                  C:\Windows\{28A8322E-E136-4522-8E0F-419AD43D56CF}.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:1912
                  • C:\Windows\{67A8DDBD-F116-43a5-A28B-AF1A9204E5BD}.exe
                    C:\Windows\{67A8DDBD-F116-43a5-A28B-AF1A9204E5BD}.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:4392
                    • C:\Windows\{FD62D158-0008-4257-9476-E647FE69D638}.exe
                      C:\Windows\{FD62D158-0008-4257-9476-E647FE69D638}.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:4160
                      • C:\Windows\{38534CA8-0AA1-43cc-9682-70776C1E3636}.exe
                        C:\Windows\{38534CA8-0AA1-43cc-9682-70776C1E3636}.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:2140
                        • C:\Windows\{123EFCF4-498B-4c0c-94D3-932C3982B7E6}.exe
                          C:\Windows\{123EFCF4-498B-4c0c-94D3-932C3982B7E6}.exe
                          12⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:1568
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c del C:\Windows\{38534~1.EXE > nul
                          12⤵
                          • Executes a command shell one-liner
                          • System Location Discovery: System Language Discovery
                          PID:4152
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c del C:\Windows\{FD62D~1.EXE > nul
                        11⤵
                        • Executes a command shell one-liner
                        • System Location Discovery: System Language Discovery
                        PID:1996
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c del C:\Windows\{67A8D~1.EXE > nul
                      10⤵
                      • Executes a command shell one-liner
                      • System Location Discovery: System Language Discovery
                      PID:2384
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c del C:\Windows\{28A83~1.EXE > nul
                    9⤵
                    • Executes a command shell one-liner
                    • System Location Discovery: System Language Discovery
                    PID:5464
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c del C:\Windows\{11095~1.EXE > nul
                  8⤵
                  • Executes a command shell one-liner
                  • System Location Discovery: System Language Discovery
                  PID:5720
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{74658~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:4320
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{C5572~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:1292
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{92691~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:304
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{211D1~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:1208
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{CBB5A~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:2872
    • 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:2628

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {11095402-7261-4912-B246-89DDABABC981}.exe

        • Path C:\Windows\{11095402-7261-4912-B246-89DDABABC981}.exe
        • Size 60KB
        • SHA256 476e234fc3a61281bbc013280184c3eb390019fe520f5ea2f4e85950e5fce9c5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {123EFCF4-498B-4c0c-94D3-932C3982B7E6}.exe

        • Path C:\Windows\{123EFCF4-498B-4c0c-94D3-932C3982B7E6}.exe
        • Size 60KB
        • SHA256 28484fc3ddebb2c84ae03db79f788d9b5850b270aa17e5bec75e0cfaf771c91e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {211D10E7-C3E5-48a6-8AAC-646D6E10DC7E}.exe

        • Path C:\Windows\{211D10E7-C3E5-48a6-8AAC-646D6E10DC7E}.exe
        • Size 60KB
        • SHA256 d2a879a14547e04a5873cc382fc739a2edc763ff8381ee6d57ca0a945ab20ae7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {28A8322E-E136-4522-8E0F-419AD43D56CF}.exe

        • Path C:\Windows\{28A8322E-E136-4522-8E0F-419AD43D56CF}.exe
        • Size 60KB
        • SHA256 44e58d4f4edf112d16f5558a483350808a0dd6f9db15038a8f658c114039f744
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {38534CA8-0AA1-43cc-9682-70776C1E3636}.exe

        • Path C:\Windows\{38534CA8-0AA1-43cc-9682-70776C1E3636}.exe
        • Size 60KB
        • SHA256 6931ae1c23e12889db020ccd705d1e3f7cadca0450c8cabad15f8b60f5e0993a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {67A8DDBD-F116-43a5-A28B-AF1A9204E5BD}.exe

        • Path C:\Windows\{67A8DDBD-F116-43a5-A28B-AF1A9204E5BD}.exe
        • Size 60KB
        • SHA256 0ac98cc96c74c1eee46884b7a40188fe4e84ee47d9c2d9d6194b11f72fa61a3d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {74658E85-DF92-4bd4-A994-F6D9ECC18BA6}.exe

        • Path C:\Windows\{74658E85-DF92-4bd4-A994-F6D9ECC18BA6}.exe
        • Size 60KB
        • SHA256 eb49f01115fee5ec6a4fe997a9e1f870c794ed72d91973b2dc09b0cadfdc0e2a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {9269161C-7CF2-481b-B83B-402719F1DD70}.exe

        • Path C:\Windows\{9269161C-7CF2-481b-B83B-402719F1DD70}.exe
        • Size 60KB
        • SHA256 b9118f2f139dc464c162a06431df28353f77299653dc2e4a52fb9a81e6892a09
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {C5572994-7026-495a-9F06-08393DD61C5A}.exe

        • Path C:\Windows\{C5572994-7026-495a-9F06-08393DD61C5A}.exe
        • Size 60KB
        • SHA256 10cc06047101ec3163493e0d32db07270b78d6a2a2fb756635c2c472bc942dfd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {CBB5AD85-6038-4d6c-9C62-1D144F7918D5}.exe

        • Path C:\Windows\{CBB5AD85-6038-4d6c-9C62-1D144F7918D5}.exe
        • Size 60KB
        • SHA256 704836de22a4102752ee260e632ce44759dca1e9c2ddbe5f47bb8004099393bd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {FD62D158-0008-4257-9476-E647FE69D638}.exe

        • Path C:\Windows\{FD62D158-0008-4257-9476-E647FE69D638}.exe
        • Size 60KB
        • SHA256 d75b9f3c85814a26c3638635b4d57908d781956debf4b762371f0b6a4e762992
        • MD5 SHA1 SHA512 SSDEEP TLSH