Overview

overview

10

Static

static

1

_afeb50342...be4.js

windows10-2004-x64

10

_afeb50342...be4.js

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    91s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/07/2026, 08:36

Sharing

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General

  • Target
    _afeb503425bcbf4b5af400207d281a68306119372703e3af3df0575a8379ebe4.js
  • Size 2.0MB
  • Sample260709-khn4hsf181
  • SHA256 afeb503425bcbf4b5af400207d281a68306119372703e3af3df0575a8379ebe4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwaredefense_evasiondiscoveryexecutionformbookpersistenceransomwareratspywarestealertrojan

Malware Config

Signatures

  • Family: Formbook

    Formbook is a data stealing malware which is capable of stealing data.

    trojanspywarestealerformbook
  • Formbook payload 5 IoCs
    rat
  • 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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

    execution
  • 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 SetThreadContext 17 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
    execution
  • 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.

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

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

  • Kills process with taskkill 1 IoCs
    defense_evasion
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of FindShellTrayWindow 51 IoCs
  • Suspicious use of SendNotifyMessage 39 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 52 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:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\_afeb503425bcbf4b5af400207d281a68306119372703e3af3df0575a8379ebe4.js
    1⤵
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:5960
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\script_A1wNvAj8AqLo_1783586179099.ps1"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4876
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
        3⤵
          PID:4252
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
          3⤵
            PID:5724
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
            3⤵
              PID:4984
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
              3⤵
                PID:2608
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                3⤵
                  PID:2412
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                  3⤵
                  • Suspicious use of SetThreadContext
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious behavior: MapViewOfSection
                  PID:5144
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                  3⤵
                    PID:5860
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:852
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:5376
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1364
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:4536
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:3180
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:2088
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1068
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:5044
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1180
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:2816
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1324
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:4316
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                      PID:4644
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                      3⤵
                        PID:4504
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                        3⤵
                          PID:5884
                      • C:\Windows\SysWOW64\EhStorAuthn.exe
                        "C:\Windows\SysWOW64\EhStorAuthn.exe"
                        2⤵
                        • Suspicious use of SetThreadContext
                        • System Location Discovery: System Language Discovery
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious behavior: MapViewOfSection
                        PID:612
                        • C:\Program Files\Mozilla Firefox\Firefox.exe
                          "C:\Program Files\Mozilla Firefox\Firefox.exe"
                          3⤵
                            PID:4716
                        • C:\Windows\System32\taskkill.exe
                          "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
                          2⤵
                          • Kills process with taskkill
                          PID:4912
                      • C:\Windows\system32\sihost.exe
                        sihost.exe
                        1⤵
                        • Suspicious use of FindShellTrayWindow
                        • Suspicious use of WriteProcessMemory
                        PID:1708
                        • 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:4432
                      • 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:5140
                      • 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:4456

                      Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

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                            Downloads

                            script_A1wNvAj8AqLo_1783586179099.ps1
                            • Path C:\Temp\script_A1wNvAj8AqLo_1783586179099.ps1
                            • Size 1.4MB
                            • SHA256 638e91b92999ce8a8cbe653ae03f7346fca071b2a3e4df281cf5be76e685c2a6
                            • MD5 SHA1 SHA512 SSDEEP TLSH
                            Submit Download

                            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 607B
                            • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
                            • MD5 SHA1 SHA512 TLSH
                            Submit Download

                            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 599B
                            • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
                            • MD5 SHA1 SHA512 TLSH
                            Submit Download

                            memory/612-37-0x0000000000480000-0x00000000004C3000-memory.dmp
                            Download

                            memory/612-225-0x0000000000480000-0x00000000004C3000-memory.dmp
                            Download

                            memory/612-35-0x0000000000480000-0x00000000004C3000-memory.dmp
                            Download

                            memory/612-40-0x0000000000480000-0x00000000004C3000-memory.dmp
                            Download

                            memory/4432-226-0x0000000011440000-0x00000000115AC000-memory.dmp
                            Download

                            memory/4432-224-0x0000000011930000-0x00000000119F3000-memory.dmp
                            Download

                            memory/4456-98-0x000001AD17E60000-0x000001AD17E80000-memory.dmp
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                            memory/4456-63-0x000001AD03E70000-0x000001AD03F70000-memory.dmp
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                            memory/4456-94-0x000001AD078E0000-0x000001AD07900000-memory.dmp
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                            memory/4456-77-0x000001AD07680000-0x000001AD076A0000-memory.dmp
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                            memory/4456-78-0x000001AD17AE0000-0x000001AD17BE0000-memory.dmp
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                            memory/4716-254-0x000001ABD8B90000-0x000001ABD8C9D000-memory.dmp
                            Download

                            memory/4876-28-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-12-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-20-0x00000175D86C0000-0x00000175D86D4000-memory.dmp
                            Download

                            memory/4876-22-0x00000175D88D0000-0x00000175D88E4000-memory.dmp
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                            memory/4876-4-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-246-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-24-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
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                            memory/4876-26-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-27-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-1-0x00007FFA5B7CF000-0x00007FFA5B7D0000-memory.dmp
                            Download

                            memory/4876-29-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-5-0x00000175D85F0000-0x00000175D8612000-memory.dmp
                            Download

                            memory/4876-6-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-8-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-9-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-10-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-18-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-11-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-17-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-19-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-16-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-13-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-15-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/4876-14-0x00007FFA5B640000-0x00007FFA5BFE4000-memory.dmp
                            Download

                            memory/5144-38-0x0000000001270000-0x00000000012B6000-memory.dmp
                            Download

                            memory/5144-36-0x0000000001270000-0x00000000012B6000-memory.dmp
                            Download

                            memory/5144-31-0x0000000001270000-0x00000000012B6000-memory.dmp
                            Download

                            memory/5144-32-0x0000000001270000-0x00000000012B6000-memory.dmp
                            Download

                            memory/5144-33-0x0000000001910000-0x0000000001934000-memory.dmp
                            Download

                            memory/5144-30-0x0000000001940000-0x0000000001CB4000-memory.dmp
                            Download

                            memory/5144-25-0x0000000001270000-0x00000000012B6000-memory.dmp
                            Download

                            memory/5144-23-0x0000000000400000-0x0000000000446000-memory.dmp
                            Download

                            memory/5960-41-0x00000000005B0000-0x0000000000BAD000-memory.dmp
                            Download

                            memory/5960-34-0x00000000005B0000-0x0000000000BAD000-memory.dmp
                            Download