Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 17:45

General

  • Target
    usb driver CH341/usb driver CH341/USB DRIVER2/DRIVER/CH341串口驱动(备用)/INSTALL/模块调试.exe
  • Size 316KB
  • Sample260804-wbtafaweqe
  • SHA256 fcf921cd7145ccf5c00549815769aad0f310805c4871180ed689ef4400c0d04c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 3 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Drops file in Drivers directory 2 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • UPX packed file 62 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 11 IoCs
  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
      PID:1200
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
      1⤵
        PID:1392
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s webthreatdefusersvc
        1⤵
          PID:3176
        • C:\Windows\System32\ShellHost.exe
          "C:\Windows\System32\ShellHost.exe"
          1⤵
            PID:3464
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
            1⤵
              PID:3292
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:4380
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:4456
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k UdkSvcGroup -s UdkUserSvc
                  1⤵
                    PID:4504
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3308
                    • C:\Windows\system32\ctfmon.exe
                      /QuitInfo:0000000000000270;0000000000000274;
                      1⤵
                        PID:4932
                      • C:\Windows\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{973D20D7-562D-44B9-B70B-5A0F49CCDF3F}
                        1⤵
                          PID:5168
                        • C:\Windows\System32\smartscreen.exe
                          C:\Windows\System32\smartscreen.exe -Embedding
                          1⤵
                            PID:5224
                          • C:\Windows\System32\SecurityHealthSystray.exe
                            "C:\Windows\System32\SecurityHealthSystray.exe"
                            1⤵
                              PID:5264
                            • C:\Windows\system32\sihost.exe
                              sihost.exe
                              1⤵
                                PID:2588
                                • C:\Windows\explorer.exe
                                  explorer.exe /LOADSAVEDWINDOWS
                                  2⤵
                                    PID:2000
                                    • C:\Users\Admin\AppData\Local\Temp\usb driver CH341\usb driver CH341\USB DRIVER2\DRIVER\CH341串口驱动(备用)\INSTALL\模块调试.exe
                                      "C:\Users\Admin\AppData\Local\Temp\usb driver CH341\usb driver CH341\USB DRIVER2\DRIVER\CH341串口驱动(备用)\INSTALL\模块调试.exe"
                                      3⤵
                                      • Modifies firewall policy service
                                      • UAC bypass
                                      • Windows security bypass
                                      • Drops file in Drivers directory
                                      • Windows security modification
                                      • Checks whether UAC is enabled
                                      • Enumerates connected drives
                                      • Drops file in Program Files directory
                                      • Drops file in Windows directory
                                      • System Location Discovery: System Language Discovery
                                      • Suspicious behavior: EnumeratesProcesses
                                      • Suspicious use of AdjustPrivilegeToken
                                      • Suspicious use of SetWindowsHookEx
                                      • Suspicious use of WriteProcessMemory
                                      • System policy modification
                                      PID:4852
                                • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
                                  "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
                                  1⤵
                                    PID:3416
                                  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                                    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                                    1⤵
                                      PID:4756
                                    • C:\Windows\system32\drivers\ipfltdrv.sys
                                      C:\Windows\system32\drivers\ipfltdrv.sys
                                      1⤵
                                        PID:4396

                                      Network

                                            MITRE ATT&CK Enterprise v16

                                            Replay Monitor

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                                            Downloads

                                            memory/4852-0-0x0000000000400000-0x0000000000452000-memory.dmp

                                            memory/4852-1-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-4-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-2-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-6-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-7-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-8-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-9-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-17-0x0000000005F30000-0x0000000005F50000-memory.dmp

                                            memory/4852-13-0x0000000005050000-0x0000000005060000-memory.dmp

                                            memory/4852-10-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-18-0x0000000005050000-0x0000000005060000-memory.dmp

                                            memory/4852-16-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-19-0x0000000005050000-0x0000000005060000-memory.dmp

                                            memory/4852-11-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-14-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-12-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-15-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-20-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-21-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-22-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-25-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-27-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-26-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-28-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-30-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-31-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-32-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-33-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-36-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-37-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-38-0x0000000005050000-0x0000000005060000-memory.dmp

                                            memory/4852-39-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-41-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-43-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-45-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-46-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-48-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-49-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-51-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-53-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-54-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-57-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-59-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-61-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-62-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-63-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-65-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-67-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-69-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-68-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-70-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-71-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-72-0x0000000000400000-0x0000000000452000-memory.dmp

                                            memory/4852-74-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-75-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-76-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-77-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-78-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-79-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-80-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-81-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-83-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-84-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-85-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-87-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-89-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-90-0x0000000002BC0000-0x0000000003C84000-memory.dmp

                                            memory/4852-92-0x0000000002BC0000-0x0000000003C84000-memory.dmp