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
    23/10/2026, 01:22

General

  • Target
    2026-10-22_f8970175832e0ab293fd01d4f32c4780_elex_remcos_wannacry.exe
  • Size 64KB
  • Sample261023-brkm1sbt6q
  • SHA256 909e8c992038151e73f4ed38ec10e2b8dd5b24df15f28543a7cbd76607e7a62a
  • 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
  • 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_f8970175832e0ab293fd01d4f32c4780_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-22_f8970175832e0ab293fd01d4f32c4780_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:1216
    • C:\Windows\{4263B2CB-461C-4d7d-BD6A-83FECA0F6E6C}.exe
      C:\Windows\{4263B2CB-461C-4d7d-BD6A-83FECA0F6E6C}.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:3260
      • C:\Windows\{37795C37-24F7-492d-8277-CD5EC71053D4}.exe
        C:\Windows\{37795C37-24F7-492d-8277-CD5EC71053D4}.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:5960
        • C:\Windows\{674FE0B4-29DD-4f3c-A94C-A1EB35BEB6A0}.exe
          C:\Windows\{674FE0B4-29DD-4f3c-A94C-A1EB35BEB6A0}.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:4076
          • C:\Windows\{20A77BFA-BD5B-4fbe-A2FF-7B7622A802E7}.exe
            C:\Windows\{20A77BFA-BD5B-4fbe-A2FF-7B7622A802E7}.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:5172
            • C:\Windows\{019394DD-0EF3-4494-8BFD-FFBE1CBEB7F5}.exe
              C:\Windows\{019394DD-0EF3-4494-8BFD-FFBE1CBEB7F5}.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:5308
              • C:\Windows\{4DC10CFA-E7AE-433e-BD7C-9B1CD55A7102}.exe
                C:\Windows\{4DC10CFA-E7AE-433e-BD7C-9B1CD55A7102}.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:4980
                • C:\Windows\{D9792477-5777-4470-855C-DA5DC42F7DFC}.exe
                  C:\Windows\{D9792477-5777-4470-855C-DA5DC42F7DFC}.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:5508
                  • C:\Windows\{4310E00C-E770-4c86-A395-94620D89ADAC}.exe
                    C:\Windows\{4310E00C-E770-4c86-A395-94620D89ADAC}.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:2468
                    • C:\Windows\{70701955-5075-4a26-A1FF-99CC804FDDC9}.exe
                      C:\Windows\{70701955-5075-4a26-A1FF-99CC804FDDC9}.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:1616
                      • C:\Windows\{1A8EFCFD-0338-43d1-957C-6DD2C5FC3762}.exe
                        C:\Windows\{1A8EFCFD-0338-43d1-957C-6DD2C5FC3762}.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:4316
                        • C:\Windows\{B335D3F7-FA3A-4362-ADE1-5FBC522B76F7}.exe
                          C:\Windows\{B335D3F7-FA3A-4362-ADE1-5FBC522B76F7}.exe
                          12⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:5016
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c del C:\Windows\{1A8EF~1.EXE > nul
                          12⤵
                          • Executes a command shell one-liner
                          • System Location Discovery: System Language Discovery
                          PID:5460
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c del C:\Windows\{70701~1.EXE > nul
                        11⤵
                        • Executes a command shell one-liner
                        • System Location Discovery: System Language Discovery
                        PID:1596
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c del C:\Windows\{4310E~1.EXE > nul
                      10⤵
                      • Executes a command shell one-liner
                      • System Location Discovery: System Language Discovery
                      PID:5964
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c del C:\Windows\{D9792~1.EXE > nul
                    9⤵
                    • Executes a command shell one-liner
                    • System Location Discovery: System Language Discovery
                    PID:900
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c del C:\Windows\{4DC10~1.EXE > nul
                  8⤵
                  • Executes a command shell one-liner
                  • System Location Discovery: System Language Discovery
                  PID:2708
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{01939~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:3292
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{20A77~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:4872
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{674FE~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:1344
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{37795~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:3932
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{4263B~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:5832
    • 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:1508

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {019394DD-0EF3-4494-8BFD-FFBE1CBEB7F5}.exe

        • Path C:\Windows\{019394DD-0EF3-4494-8BFD-FFBE1CBEB7F5}.exe
        • Size 64KB
        • SHA256 90d5e4758809bb0bdc8d5e5ed573bd0b09616aef21668df4812745308a31f08a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {1A8EFCFD-0338-43d1-957C-6DD2C5FC3762}.exe

        • Path C:\Windows\{1A8EFCFD-0338-43d1-957C-6DD2C5FC3762}.exe
        • Size 64KB
        • SHA256 3925ba5cc8d92cb7ea24884c8d5391f83407941beb54a9c3845ae33e24fc663a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {20A77BFA-BD5B-4fbe-A2FF-7B7622A802E7}.exe

        • Path C:\Windows\{20A77BFA-BD5B-4fbe-A2FF-7B7622A802E7}.exe
        • Size 64KB
        • SHA256 dbaf49c1af06c5f86bda26cc3f96178fcb712e9799df584bdc318353d78c357a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {37795C37-24F7-492d-8277-CD5EC71053D4}.exe

        • Path C:\Windows\{37795C37-24F7-492d-8277-CD5EC71053D4}.exe
        • Size 64KB
        • SHA256 0dc72157d4e0405f38a7bbcce7e488e58fcefd8c7e9b05dbdddc8ca6e685f801
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {4263B2CB-461C-4d7d-BD6A-83FECA0F6E6C}.exe

        • Path C:\Windows\{4263B2CB-461C-4d7d-BD6A-83FECA0F6E6C}.exe
        • Size 64KB
        • SHA256 e1f2c959d201faed97070703a77692f9303ed5b6f951e1602971e1620b888251
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {4310E00C-E770-4c86-A395-94620D89ADAC}.exe

        • Path C:\Windows\{4310E00C-E770-4c86-A395-94620D89ADAC}.exe
        • Size 64KB
        • SHA256 38bb3520a20aa7ab72a460af71b0a29d606ce7c8e29493ead3f3468476c9825b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {4DC10CFA-E7AE-433e-BD7C-9B1CD55A7102}.exe

        • Path C:\Windows\{4DC10CFA-E7AE-433e-BD7C-9B1CD55A7102}.exe
        • Size 64KB
        • SHA256 7bf064b8b3b84af871772c3878c86df2e8552e92bf3d6ab4390e9d024047ac65
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {674FE0B4-29DD-4f3c-A94C-A1EB35BEB6A0}.exe

        • Path C:\Windows\{674FE0B4-29DD-4f3c-A94C-A1EB35BEB6A0}.exe
        • Size 64KB
        • SHA256 e1a8b9c742e9a9698ab89ef40747817b5f70c2af56c2ec93ecfa42eb87b54580
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {70701955-5075-4a26-A1FF-99CC804FDDC9}.exe

        • Path C:\Windows\{70701955-5075-4a26-A1FF-99CC804FDDC9}.exe
        • Size 64KB
        • SHA256 6038fcbb79db937ef4a775969debaff6b16f6384421a09d6671a51c293390829
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {B335D3F7-FA3A-4362-ADE1-5FBC522B76F7}.exe

        • Path C:\Windows\{B335D3F7-FA3A-4362-ADE1-5FBC522B76F7}.exe
        • Size 64KB
        • SHA256 d8f801f40287fec0eebaf61e74e1cfb0744be6738fbb024b779fb54d89e92e5a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {D9792477-5777-4470-855C-DA5DC42F7DFC}.exe

        • Path C:\Windows\{D9792477-5777-4470-855C-DA5DC42F7DFC}.exe
        • Size 64KB
        • SHA256 3760b7feac38b657de4598b722e81d5afa347adac19b500a259390ca56a626bc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1216-8-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/1216-0-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/1216-1-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/1616-70-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/1616-64-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2468-63-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/2468-57-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/3260-14-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/3260-6-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4076-28-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4076-23-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4076-21-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4316-78-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4316-71-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4980-48-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/4980-43-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5016-77-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5172-35-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5172-29-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5308-41-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5308-36-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5508-56-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5508-50-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5960-13-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5960-19-0x0000000000400000-0x0000000000410000-memory.dmp