Overview

overview

8

Static

static

3

FizzoLoader.exe

windows10-2004-x64

5

FizzoLoader.exe

windows11-ltsc_2024-x64

8

Analysis

  • user interaction
    yes
  • max time kernel
    901s
  • max time network
    445s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/07/2026, 21:55

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    FizzoLoader.exe
  • Size 30.1MB
  • Sample260727-1stdzssbjf
  • SHA256 e212cd4631b2c99e6b96b94157c227dd27d094e099c206e1da806efac9392070
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwaredefense_evasionexecutionpersistenceransomwarespyware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Executes a command shell one-liner 1 TTPs 3 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\FizzoLoader.exe
    "C:\Users\Admin\AppData\Local\Temp\FizzoLoader.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5396
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\FizzoLoader.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:3424
      • C:\Windows\system32\certutil.exe
        certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\FizzoLoader.exe" MD5
        3⤵
          PID:5628
        • C:\Windows\system32\find.exe
          find /i /v "md5"
          3⤵
            PID:3864
          • C:\Windows\system32\find.exe
            find /i /v "certutil"
            3⤵
              PID:3664
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c start cmd /C "color b && title Error && echo CURL Error: Failure when receiving data from the peer && timeout /t 5"
            2⤵
            • Executes a command shell one-liner
            • Suspicious use of WriteProcessMemory
            PID:2352
            • C:\Windows\system32\cmd.exe
              cmd /C "color b && title Error && echo CURL Error: Failure when receiving data from the peer && timeout /t 5"
              3⤵
              • Executes a command shell one-liner
              • Suspicious use of WriteProcessMemory
              PID:5936
              • C:\Windows\system32\timeout.exe
                timeout /t 5
                4⤵
                • Delays execution with timeout.exe
                PID:3720
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k GPSvcGroup
          1⤵
            PID:1960
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of WriteProcessMemory
            PID:4508
            • C:\Windows\explorer.exe
              explorer.exe /LOADSAVEDWINDOWS
              2⤵
              • Boot or Logon Autostart Execution: Active Setup
              • Enumerates connected drives
              • Checks SCSI registry key(s)
              • Modifies Internet Explorer settings
              • Modifies registry class
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              • Suspicious use of SetWindowsHookEx
              PID:1764
          • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
            "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
            1⤵
            • Modifies registry class
            • Suspicious use of SetWindowsHookEx
            PID:3156
          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
            1⤵
            • Modifies registry class
            • Suspicious use of SetWindowsHookEx
            PID:5796
          • C:\Windows\System32\SecurityHealthHost.exe
            \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
            1⤵
              PID:3976

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  prep_Activatable Class_Hermes_perf.cache
                  • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
                  • Size 595B
                  • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
                  • MD5 SHA1 SHA512 TLSH
                  Submit Download

                  memory/1764-174-0x000000000A450000-0x000000000A6AF000-memory.dmp
                  Download

                  memory/3156-8-0x00000223001E0000-0x00000223002E0000-memory.dmp
                  Download

                  memory/3156-15-0x00000223029C0000-0x00000223029E0000-memory.dmp
                  Download

                  memory/3156-16-0x0000022302E70000-0x0000022302F70000-memory.dmp
                  Download

                  memory/3156-54-0x00000223141A0000-0x00000223141C0000-memory.dmp
                  Download

                  memory/3156-29-0x0000022302D00000-0x0000022302D20000-memory.dmp
                  Download

                  memory/5396-0-0x00007FFB447F0000-0x00007FFB447F2000-memory.dmp
                  Download

                  memory/5396-2-0x00007FFB44800000-0x00007FFB44802000-memory.dmp
                  Download

                  memory/5396-3-0x00007FF76C790000-0x00007FF76E5AE000-memory.dmp
                  Download