Analysis

  • user interaction
    yes
  • max time kernel
    112s
  • max time network
    114s
  • 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, 00:14

General

  • Target
    Floxif.exe
  • Size 532KB
  • Sample260804-ajprbsaa33
  • SHA256 812af0ec9e1dfd8f48b47fd148bafe6eecb42d0a304bc0e4539750dd23820a7f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Detects Floxif payload 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 9 IoCs
  • UPX packed file 3 IoCs

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

  • Drops file in Program Files directory 1 IoCs
  • Program crash 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.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 7 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\Floxif.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3484
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3484 -s 492
      2⤵
      • Program crash
      PID:5716
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 3484 -ip 3484
    1⤵
      PID:4336
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /7
      1⤵
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:1816
    • C:\Program Files\WindowsApps\Microsoft.SecHealthUI_1000.26100.1.0_x64__8wekyb3d8bbwe\SecHealthUI.exe
      "C:\Program Files\WindowsApps\Microsoft.SecHealthUI_1000.26100.1.0_x64__8wekyb3d8bbwe\SecHealthUI.exe" -ServerName:SecHealthUI.AppX8tam42xc7v2czs3s1nt0nkxvfjtepzp9.mca
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:3120
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
      1⤵
        PID:1808
      • C:\Windows\System32\SecurityHealthHost.exe
        \\?\C:\Windows\System32\SecurityHealthHost.exe {E041C90B-68BA-42C9-991E-477B73A75C90} -Embedding
        1⤵
          PID:5144
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k WbioSvcGroup -s WbioSrvc
          1⤵
          • Drops file in System32 directory
          • Checks processor information in registry
          • Suspicious use of AdjustPrivilegeToken
          PID:4428
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
          1⤵
            PID:1600
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s NgcCtnrSvc
            1⤵
            • Modifies data under HKEY_USERS
            PID:5340
          • C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE
            "C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE" /s "C:\Users\Admin\Desktop\UninstallResolve.ppsm" /ou ""
            1⤵
            • Checks processor information in registry
            • Enumerates system info in registry
            • Suspicious behavior: AddClipboardFormatListener
            • Suspicious use of SetWindowsHookEx
            PID:4904
          • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
            "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
            1⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious use of SetWindowsHookEx
            PID:2144

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                symsrv.dll

                • Path C:\Program Files\Common Files\System\symsrv.dll
                • Size 72KB
                • SHA256 eaf76e5f1a438478ecf7b678744da34e9d9e5038b128f0c595672ee1dbbfd914
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/1816-17-0x0000023E38B70000-0x0000023E38B71000-memory.dmp

                memory/1816-16-0x0000023E38B70000-0x0000023E38B71000-memory.dmp

                memory/1816-11-0x0000023E38B70000-0x0000023E38B71000-memory.dmp

                memory/1816-12-0x0000023E38B70000-0x0000023E38B71000-memory.dmp

                memory/1816-20-0x0000023E38B70000-0x0000023E38B71000-memory.dmp

                memory/1816-21-0x0000023E38B70000-0x0000023E38B71000-memory.dmp

                memory/1816-19-0x0000023E38B70000-0x0000023E38B71000-memory.dmp

                memory/1816-18-0x0000023E38B70000-0x0000023E38B71000-memory.dmp

                memory/3484-9-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/3484-4-0x0000000010000000-0x0000000010030000-memory.dmp

                memory/3484-7-0x0000000000B20000-0x0000000000B95000-memory.dmp

                memory/4904-36-0x00007FFC1CF80000-0x00007FFC1CF90000-memory.dmp

                memory/4904-37-0x00007FFC1CF80000-0x00007FFC1CF90000-memory.dmp

                memory/4904-38-0x00007FFC1CF80000-0x00007FFC1CF90000-memory.dmp

                memory/4904-39-0x00007FFC1CF80000-0x00007FFC1CF90000-memory.dmp

                memory/4904-40-0x00007FFC1CF80000-0x00007FFC1CF90000-memory.dmp

                memory/4904-41-0x00007FFC1A7D0000-0x00007FFC1A7E0000-memory.dmp

                memory/4904-42-0x00007FFC1A7D0000-0x00007FFC1A7E0000-memory.dmp

                memory/4904-62-0x00007FFC1CF80000-0x00007FFC1CF90000-memory.dmp

                memory/4904-64-0x00007FFC1CF80000-0x00007FFC1CF90000-memory.dmp

                memory/4904-61-0x00007FFC1CF80000-0x00007FFC1CF90000-memory.dmp

                memory/4904-63-0x00007FFC1CF80000-0x00007FFC1CF90000-memory.dmp