Overview

overview

10

Static

static

7

Pumpkhn_Un...1).exe

windows10-2004-x64

9

Pumpkhn_Un...1).exe

windows11-ltsc_2024-x64

9

Pumpkhn_Un...ep.exe

windows10-2004-x64

10

Pumpkhn_Un...ep.exe

windows11-ltsc_2024-x64

10

Pumpkhn_Un...IN.exe

windows10-2004-x64

3

Pumpkhn_Un...IN.exe

windows11-ltsc_2024-x64

3

Pumpkhn_Un...64.exe

windows10-2004-x64

1

Pumpkhn_Un...64.exe

windows11-ltsc_2024-x64

1

Pumpkhn_Un...16.exe

windows10-2004-x64

Pumpkhn_Un...16.exe

windows11-ltsc_2024-x64

Pumpkhn_Un...IT.exe

windows10-2004-x64

1

Pumpkhn_Un...IT.exe

windows11-ltsc_2024-x64

1

Pumpkhn_Un...LL.dll

windows10-2004-x64

3

Pumpkhn_Un...LL.dll

windows11-ltsc_2024-x64

3

Pumpkhn_Un...YS.sys

windows10-2004-x64

3

Pumpkhn_Un...YS.sys

windows11-ltsc_2024-x64

3

Pumpkhn_Un...64.sys

windows10-2004-x64

3

Pumpkhn_Un...64.sys

windows11-ltsc_2024-x64

3

Pumpkhn_Un...64.sys

windows10-2004-x64

3

Pumpkhn_Un...64.sys

windows11-ltsc_2024-x64

3

Pumpkhn_Un...H1.exe

windows10-2004-x64

3

Pumpkhn_Un...H1.exe

windows11-ltsc_2024-x64

8

Pumpkhn_Un...er.exe

windows10-2004-x64

6

Pumpkhn_Un...er.exe

windows11-ltsc_2024-x64

6

Pumpkhn_Un...AC.exe

windows10-2004-x64

7

Pumpkhn_Un...AC.exe

windows11-ltsc_2024-x64

8

Pumpkhn_Un...er.bat

windows10-2004-x64

4

Pumpkhn_Un...er.bat

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    899s
  • max time network
    551s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 12:59

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General

  • Target
    Pumpkhn_UnhwidBan/Unhwidban/hwid/FIles/serial_checker.bat
  • Size 454B
  • Sample261102-p77pdatwht
  • SHA256 56e0af9513d41127dd33933116970b3d2560d0586f7a64b6ffdf215d1fc762ab
  • MD5 SHA1 SHA512 TLSH
Score
8/10
adwarediscoveryexecutionpersistenceransomwarespyware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Queries system WMI classes for hardware identifiers 2 TTPs 4 IoCs

    Uses WMI to read hardware serial numbers or the system UUID, commonly used to fingerprint the victim machine.

    discovery
  • Executes a command shell one-liner 1 TTPs 1 IoCs

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

    execution
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 10 IoCs

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

    discovery
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 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.

    persistence
  • Uses Volume Shadow Copy WMI provider

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

    ransomware
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Pumpkhn_UnhwidBan\Unhwidban\hwid\FIles\serial_checker.bat"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:2780
    • C:\Windows\System32\Wbem\WMIC.exe
      wmic diskdrive get model, serialnumber
      2⤵
      • Queries system WMI classes for hardware identifiers
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2684
    • C:\Windows\System32\Wbem\WMIC.exe
      wmic cpu get serialnumber
      2⤵
      • Queries system WMI classes for hardware identifiers
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5448
    • C:\Windows\System32\Wbem\WMIC.exe
      wmic bios get serialnumber
      2⤵
      • Queries system WMI classes for hardware identifiers
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4736
    • C:\Windows\System32\Wbem\WMIC.exe
      wmic baseboard get serialnumber
      2⤵
      • Queries system WMI classes for hardware identifiers
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2688
    • C:\Windows\System32\Wbem\WMIC.exe
      wmic path win32_computersystemproduct get uuid
      2⤵
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      PID:6060
    • C:\Windows\system32\getmac.exe
      getmac
      2⤵
        PID:620
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:924
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4836
        • C:\Windows\explorer.exe
          explorer.exe /LOADSAVEDWINDOWS
          2⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Enumerates connected drives
          • Checks SCSI registry key(s)
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          PID:6120
      • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
        "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:5516
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:3456
      • C:\Windows\System32\SecurityHealthHost.exe
        \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
        1⤵
          PID:1184

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              prep_Activatable Class_Hermes_perf.cache
              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
              • Size 599B
              • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              memory/3456-183-0x000001E743AA0000-0x000001E743D5C000-memory.dmp
              Download

              memory/3456-200-0x000001E743AA0000-0x000001E743D5C000-memory.dmp
              Download

              memory/5516-42-0x0000016C94700000-0x0000016C94720000-memory.dmp
              Download

              memory/5516-20-0x0000016C83C80000-0x0000016C83CA0000-memory.dmp
              Download

              memory/5516-11-0x0000016C83A40000-0x0000016C83A60000-memory.dmp
              Download

              memory/5516-14-0x0000016C93E80000-0x0000016C93F80000-memory.dmp
              Download

              memory/5516-5-0x0000016C801E0000-0x0000016C802E0000-memory.dmp
              Download

              memory/5516-4-0x0000016C801E0000-0x0000016C802E0000-memory.dmp
              Download

              memory/5516-3-0x0000016C801E0000-0x0000016C802E0000-memory.dmp
              Download

              memory/6120-182-0x000000000E200000-0x000000000EA7B000-memory.dmp
              Download

              memory/6120-229-0x000000000E200000-0x000000000EA7B000-memory.dmp
              Download