Analysis

  • max time kernel
    899s
  • max time network
    554s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/10/2026, 12:19

General

  • Target
    SystemUpdater.exe
  • Size 31.7MB
  • Sample261026-pg9q2ssx2m
  • SHA256 0df3202d6a61ec93a8a195f3cdf942a7e2727eb91c9eb71cfe06ddc85187a31c
  • MD5 SHA1 SHA512 SSDEEP TLSH

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.

  • Creates a file in the Startup directory 1 TTPs 2 IoCs

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

  • Loads dropped DLL 46 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Contacts third-party web service commonly abused for C2 1 TTPs 9 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Looks up external IP address via web service 1 TTPs 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Discovers running processes 1 TTPs 2 IoCs

    Running process information can be used to identify security tools or plan follow-on actions.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Executes a command shell one-liner 1 TTPs 12 IoCs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 16 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

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

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

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 39 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 28 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.

  • Uses Volume Shadow Copy WMI provider

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

  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe
    "C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2624
    • C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe
      "C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe"
      2⤵
      • Creates a file in the Startup directory
      • Loads dropped DLL
      • Adds Run key to start application
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious use of WriteProcessMemory
      PID:3868
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "schtasks /create /tn "WindowsSecurityUpdate" /tr "C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe" /sc onlogon /f"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:1760
        • C:\Windows\system32\schtasks.exe
          schtasks /create /tn "WindowsSecurityUpdate" /tr "C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe" /sc onlogon /f
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:6096
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "wmic cpu get name"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:2360
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic cpu get name
          4⤵
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3188
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "wmic cpu get NumberOfCores"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:6080
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic cpu get NumberOfCores
          4⤵
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3760
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "wmic memorychip get capacity"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4796
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic memorychip get capacity
          4⤵
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious behavior: EnumeratesProcesses
          PID:2988
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "wmic path win32_VideoController get name"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:3172
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic path win32_VideoController get name
          4⤵
          • Reads the TCP/IP host and domain name from the registry
          • Detects videocard installed
          • Suspicious behavior: EnumeratesProcesses
          PID:4848
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "wmic logicaldisk where drivetype=3 get DeviceID,Size,FreeSpace"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:3288
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic logicaldisk where drivetype=3 get DeviceID,Size,FreeSpace
          4⤵
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious behavior: EnumeratesProcesses
          PID:4440
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "wmic path softwarelicensingservice get OA3xOriginalProductKey"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:5428
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic path softwarelicensingservice get OA3xOriginalProductKey
          4⤵
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious behavior: EnumeratesProcesses
          PID:5420
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -NoProfile -NonInteractive -Command "(Get-CimInstance SoftwareLicensingService).OA3xOriginalProductKey"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:2724
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "tasklist"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:5992
        • C:\Windows\system32\tasklist.exe
          tasklist
          4⤵
          • Discovers running processes
          PID:1688
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "tasklist /nh"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4616
        • C:\Windows\system32\tasklist.exe
          tasklist /nh
          4⤵
          • Discovers running processes
          PID:4656
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "wmic os get lastbootuptime"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:252
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic os get lastbootuptime
          4⤵
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious behavior: EnumeratesProcesses
          PID:1672
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "netsh wlan show profiles"
        3⤵
        • Executes a command shell one-liner
        • System Network Configuration Discovery: Wi-Fi Discovery
        • Suspicious use of WriteProcessMemory
        PID:876
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Network Configuration Discovery: Wi-Fi Discovery
          PID:4592
  • C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe
    C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4532
    • C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe
      C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe
      2⤵
      • Creates a file in the Startup directory
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:4752
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "schtasks /create /tn "WindowsSecurityUpdate" /tr "C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe" /sc onlogon /f"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:1592
        • C:\Windows\system32\schtasks.exe
          schtasks /create /tn "WindowsSecurityUpdate" /tr "C:\Users\Admin\AppData\Local\Temp\SystemUpdater.exe" /sc onlogon /f
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:5576
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:5948
    • 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 FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:5600
  • 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:4744
  • 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:5452
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:836
    • C:\Windows\System32\SecurityHealthHost.exe
      \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
      1⤵
        PID:3896

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            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

            VCRUNTIME140.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\VCRUNTIME140.dll
            • Size 117KB
            • SHA256 052ad6a20d375957e82aa6a3c441ea548d89be0981516ca7eb306e063d5027f4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            VCRUNTIME140_1.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\VCRUNTIME140_1.dll
            • Size 48KB
            • SHA256 6a99bc0128e0c7d6cbbf615fcc26909565e17d4ca3451b97f8987f9c6acbc6c8
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _bz2.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\_bz2.pyd
            • Size 85KB
            • SHA256 a4be36fffeefa8b24c1234d548da8f05558aba53c2ea7d1d2614776eaad8fbf4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _ctypes.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\_ctypes.pyd
            • Size 139KB
            • SHA256 f8a9f7831e81b2bfba12456e589f8198114f24986bd527ac231a844565afcddb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _hashlib.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\_hashlib.pyd
            • Size 67KB
            • SHA256 d4524b261f09806a828c62fc97e8517328b23d65ab87d20706a4bafd86bbf345
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _lzma.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\_lzma.pyd
            • Size 157KB
            • SHA256 f7ad11fbbb7aeaf7b6566a532a3243e3ae5f92bac480dbe5c2ef300fe2c1dabe
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _socket.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\_socket.pyd
            • Size 85KB
            • SHA256 ff3e97cd11bdc68798e5b3dcd5295d1efba179b7344142d50d066bbf1c2d79cd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _sqlite3.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\_sqlite3.pyd
            • Size 129KB
            • SHA256 c6d7bcea0084bcfa3c487bd7040350ee7c77f4108ce74b964f760133b2a7a6b2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _ssl.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\_ssl.pyd
            • Size 180KB
            • SHA256 43e60bbdff2fe41701f39fa25ea6a8251a2b7623ff18f980a209a451eb5e648f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _wmi.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\_wmi.pyd
            • Size 39KB
            • SHA256 5a7f3444f1c2f85fb5573bc330c1aea2c583912bb6f948ff81f8fd89a30e67be
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _zstd.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\_zstd.pyd
            • Size 491KB
            • SHA256 536a3b521a3c42d2827ece0ccfbe40b83a2fd96a0f5496cd60b943b10e1266d4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            base_library.zip

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\base_library.zip
            • Size 1.3MB
            • SHA256 9c39b769cba84d189d09824eb8eeb2c0ff3fd5270e1ff20fb79ae30b14e79c69
            • MD5 SHA1 SHA512 SSDEEP TLSH

            libcrypto-3.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\libcrypto-3.dll
            • Size 5.0MB
            • SHA256 e03dd02fdcfb791981c9962827cfcf495f2a47a514c1526efb57f847a9df514a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            libffi-8.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\libffi-8.dll
            • Size 38KB
            • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            libssl-3.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\libssl-3.dll
            • Size 776KB
            • SHA256 1e4bc0638682bfcbb36f4465d6a2e9944d917a60f05ecc8ddf9e96847e05e13f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            python3.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\python3.dll
            • Size 72KB
            • SHA256 be1017ca4ca8ff837efbb343d5c8f739bd67bd1c43fb41068a539b19357c0213
            • MD5 SHA1 SHA512 SSDEEP TLSH

            python314.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\python314.dll
            • Size 6.4MB
            • SHA256 1ac15e2224581fc678bbd17728b9aa538d47b891b72c76499ef07e54cd74f151
            • MD5 SHA1 SHA512 SSDEEP TLSH

            pywintypes314.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\pywin32_system32\pywintypes314.dll
            • Size 133KB
            • SHA256 e62808f40462f8066c8d19811cebd15467de6992b1cb48be5f5903910f5395f7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            sqlite3.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\sqlite3.dll
            • Size 1.5MB
            • SHA256 bf85c9ae8a9eda75ce45dee2d325aabc4426557c5223b38cb4271f860cc808c2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ucrtbase.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\ucrtbase.dll
            • Size 1.3MB
            • SHA256 2e5fb14b7bf8540278f3614a12f0226e56a7cc9e64b81cbd976c6fcf2f71cbfb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            unicodedata.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\unicodedata.pyd
            • Size 740KB
            • SHA256 4445b894f836e89a8b9fdcc88b5e59fbc76aca805baaf40aeb69e869978d4e6d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            win32api.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\win32\win32api.pyd
            • Size 136KB
            • SHA256 9004920e2c7863c34d0b3c4183ab3e1482475817cfb64f4f198e1fdd43f48f4e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            win32event.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000a402\win32\win32event.pyd
            • Size 29KB
            • SHA256 f16242b661c20f510ea13fa3dcac5bd332bccb4d135ef2ab497b3f3f3398c389
            • MD5 SHA1 SHA512 SSDEEP TLSH

            INSTALLER

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000011b42\numpy-2.5.4.dist-info\INSTALLER
            • Size 4B
            • SHA256 ceebae7b8927a3227e5303cf5e0f1f7b34bb542ad7250ac03fbcde36ec2f1508
            • MD5 SHA1 SHA512

            __PSScriptPolicyTest_pi14vpds.3oa.psm1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pi14vpds.3oa.psm1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512 TLSH

            memory/2724-339-0x00000201CE280000-0x00000201CE28A000-memory.dmp

            memory/2724-338-0x00000201CE2F0000-0x00000201CE3A2000-memory.dmp

            memory/2724-337-0x00000201CE2D0000-0x00000201CE2EE000-memory.dmp

            memory/2724-340-0x00000201CE3E0000-0x00000201CE40A000-memory.dmp

            memory/2724-341-0x00000201CE3E0000-0x00000201CE404000-memory.dmp

            memory/2724-334-0x00000201CE200000-0x00000201CE222000-memory.dmp

            memory/4744-377-0x00000236001E0000-0x00000236002E0000-memory.dmp

            memory/4744-389-0x0000023601DA0000-0x0000023601DC0000-memory.dmp

            memory/4744-385-0x0000023601D80000-0x0000023601DA0000-memory.dmp

            memory/4744-386-0x0000023604040000-0x0000023604140000-memory.dmp

            memory/4744-425-0x00000236143F0000-0x0000023614410000-memory.dmp

            memory/4744-539-0x00000236014E0000-0x00000236016C3000-memory.dmp