Analysis

  • max time kernel
    148s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/10/2026, 20:52

General

  • Target
    2026-10-19_b4c1351185f5bf598268af2e0ee5f3f6_elex_remcos_wannacry.exe
  • Size 79KB
  • Sample261019-zn2zws1vbx
  • SHA256 7cb07f227c5942b2c6dfea31939469a7ab1c3abccc30627fac791b6aebdc1819
  • 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\2026-10-19_b4c1351185f5bf598268af2e0ee5f3f6_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-19_b4c1351185f5bf598268af2e0ee5f3f6_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:3300
    • C:\Windows\{C2769445-179A-4819-AC89-A88B78468B50}.exe
      C:\Windows\{C2769445-179A-4819-AC89-A88B78468B50}.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:3328
      • C:\Windows\{61FD2A27-9642-4ff9-A1BE-98760B57243C}.exe
        C:\Windows\{61FD2A27-9642-4ff9-A1BE-98760B57243C}.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:5760
        • C:\Windows\{4F31E350-187C-43ae-93DD-673F1D4C19B9}.exe
          C:\Windows\{4F31E350-187C-43ae-93DD-673F1D4C19B9}.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:5084
          • C:\Windows\{FECCE1CE-E0FB-4967-BC53-9DDEA3E72FDC}.exe
            C:\Windows\{FECCE1CE-E0FB-4967-BC53-9DDEA3E72FDC}.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:5940
            • C:\Windows\{ECEB42B5-E28A-4b7a-B81C-88017161020B}.exe
              C:\Windows\{ECEB42B5-E28A-4b7a-B81C-88017161020B}.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:2768
              • C:\Windows\{D9ECB073-79A4-4ced-89EA-C4E3331F1B4C}.exe
                C:\Windows\{D9ECB073-79A4-4ced-89EA-C4E3331F1B4C}.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:2624
                • C:\Windows\{58ABABCE-94FA-4fa6-A3EB-B636BAC8EA3B}.exe
                  C:\Windows\{58ABABCE-94FA-4fa6-A3EB-B636BAC8EA3B}.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:5428
                  • C:\Windows\{E0BD3EFF-19BB-4d57-BA3A-25FA89F1F7C3}.exe
                    C:\Windows\{E0BD3EFF-19BB-4d57-BA3A-25FA89F1F7C3}.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:5792
                    • C:\Windows\{54700CEB-1A93-4f77-B871-276798E4965B}.exe
                      C:\Windows\{54700CEB-1A93-4f77-B871-276798E4965B}.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:5676
                      • C:\Windows\{00708D39-6121-4ff7-ABEC-19F2DB264F14}.exe
                        C:\Windows\{00708D39-6121-4ff7-ABEC-19F2DB264F14}.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:2672
                        • C:\Windows\{E1FE0B07-64F8-4799-B68D-01226E8F543C}.exe
                          C:\Windows\{E1FE0B07-64F8-4799-B68D-01226E8F543C}.exe
                          12⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:3612
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c del C:\Windows\{00708~1.EXE > nul
                          12⤵
                          • Executes a command shell one-liner
                          • System Location Discovery: System Language Discovery
                          PID:1332
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c del C:\Windows\{54700~1.EXE > nul
                        11⤵
                        • Executes a command shell one-liner
                        • System Location Discovery: System Language Discovery
                        PID:5856
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c del C:\Windows\{E0BD3~1.EXE > nul
                      10⤵
                      • Executes a command shell one-liner
                      • System Location Discovery: System Language Discovery
                      PID:2540
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c del C:\Windows\{58ABA~1.EXE > nul
                    9⤵
                    • Executes a command shell one-liner
                    • System Location Discovery: System Language Discovery
                    PID:1068
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c del C:\Windows\{D9ECB~1.EXE > nul
                  8⤵
                  • Executes a command shell one-liner
                  • System Location Discovery: System Language Discovery
                  PID:4928
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{ECEB4~1.EXE > nul
                7⤵
                • 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\{FECCE~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:4140
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{4F31E~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:3492
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{61FD2~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:1704
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{C2769~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:4312
    • 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:3012

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {00708D39-6121-4ff7-ABEC-19F2DB264F14}.exe

        • Path C:\Windows\{00708D39-6121-4ff7-ABEC-19F2DB264F14}.exe
        • Size 79KB
        • SHA256 38bba8acadfb1db8451fd70cd3bed4ce4873755dce2005e4eff973d239d4475b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {4F31E350-187C-43ae-93DD-673F1D4C19B9}.exe

        • Path C:\Windows\{4F31E350-187C-43ae-93DD-673F1D4C19B9}.exe
        • Size 79KB
        • SHA256 77aaf685233c67a61716052c26101ab3456d592795cdae88ba25bcd34611b7fd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {54700CEB-1A93-4f77-B871-276798E4965B}.exe

        • Path C:\Windows\{54700CEB-1A93-4f77-B871-276798E4965B}.exe
        • Size 79KB
        • SHA256 5884a4ca5dcf3fd2bab6cf0c46a9d419e6138ab1e2b4b82bb8af63fd797ad74a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {58ABABCE-94FA-4fa6-A3EB-B636BAC8EA3B}.exe

        • Path C:\Windows\{58ABABCE-94FA-4fa6-A3EB-B636BAC8EA3B}.exe
        • Size 79KB
        • SHA256 8c3e4a91b190882387131477e350d3a60bb495e1a1448df915cd213863761e5f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {61FD2A27-9642-4ff9-A1BE-98760B57243C}.exe

        • Path C:\Windows\{61FD2A27-9642-4ff9-A1BE-98760B57243C}.exe
        • Size 79KB
        • SHA256 8569039645aa08e1c4ef74df394f162a5cd5b7cae0cdb8c7f8e99df8cd8cc5e5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {C2769445-179A-4819-AC89-A88B78468B50}.exe

        • Path C:\Windows\{C2769445-179A-4819-AC89-A88B78468B50}.exe
        • Size 79KB
        • SHA256 038514212a2f2c11298ca025d549f620eff7d2cef666f0084dc4db2bb82a3b67
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {D9ECB073-79A4-4ced-89EA-C4E3331F1B4C}.exe

        • Path C:\Windows\{D9ECB073-79A4-4ced-89EA-C4E3331F1B4C}.exe
        • Size 79KB
        • SHA256 2a219d2764280d26eafbc836ca9583b2f16a1b175017b09903772e4a36c1c289
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {E0BD3EFF-19BB-4d57-BA3A-25FA89F1F7C3}.exe

        • Path C:\Windows\{E0BD3EFF-19BB-4d57-BA3A-25FA89F1F7C3}.exe
        • Size 79KB
        • SHA256 ab6bd902ab65b4f9405b82ca1da6525a37ffe7fcd5cc66c7f70febb6dbc3722a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {E1FE0B07-64F8-4799-B68D-01226E8F543C}.exe

        • Path C:\Windows\{E1FE0B07-64F8-4799-B68D-01226E8F543C}.exe
        • Size 79KB
        • SHA256 30df8768867d8c76e3bdd919e3dcbb4ca45f59725b6732214d5401b838e81ad6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {ECEB42B5-E28A-4b7a-B81C-88017161020B}.exe

        • Path C:\Windows\{ECEB42B5-E28A-4b7a-B81C-88017161020B}.exe
        • Size 79KB
        • SHA256 e8a2a300bc55c659e25bc98c8e53d1afe9a3243390368f9cff2b8fb330a92e70
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {FECCE1CE-E0FB-4967-BC53-9DDEA3E72FDC}.exe

        • Path C:\Windows\{FECCE1CE-E0FB-4967-BC53-9DDEA3E72FDC}.exe
        • Size 79KB
        • SHA256 c020b3212a0b5ef76901571242075aded96a5e0f50115a91325fb2e570fc94a8
        • MD5 SHA1 SHA512 SSDEEP TLSH