Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
06/05/2026, 04:48
Static task
static1
Behavioral task
behavioral1
Sample
cthk.io_hyber.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
cthk.io_hyber.exe
Resource
win11-20260130-en
General
- Target cthk.io_hyber.exe
- Size 51KB
- Sample260506-ffkabsav91
- SHA256 c2c79725c6e6fd8132fc9aa00cc5d5e869816fd64ce89acd1bfc8138fea74583
- MD5 054916810079a00f016f3b040cb825db
- SHA1 8c9e6aa44062d44bc877982f4f9199ee7c6a6a2c
- SHA512 32e343651f77408cb5164b07b2a230a9733fbec7f0df28d10b2083bbe4c149bd0b5a935818035fbba4d32e938dbbc1f0faa5372ac3253e70690ace4a9f23333c
- SSDEEP 768:4VTtLYhD+7o19oDJLnk5zvSiyk//b8VDnh/VAe77ePLf9jSuchE2s:KYhD+Yuhnhiz/bYJ7IljSuc7s
- TLSH T1DD33094877ED4112E1BF4EBE99B184129731F463DD22DB8E0AD8459E09F3744CCA8B6B
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- 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.
resource yara_rule behavioral2/memory/912-0-0x00000000005C0000-0x00000000005D4000-memory.dmp disable_win_def behavioral2/memory/912-1-0x0000000002750000-0x0000000002760000-memory.dmp disable_win_def behavioral2/files/0x001700000002b668-2274.dat disable_win_def -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1" cthk.io_hyber.exe - 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.
pid Process 1300 powershell.exe - Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" cthk.io_hyber.exe - Disables Task Manager via registry modification
- Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\drivers\etc\hosts cthk.io_hyber.exe - Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2968 netsh.exe - Disables service(s) 3 TTPs
- Drops startup file 64 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_176.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_190.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_192.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_47.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_56.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_81.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_109.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_114.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_129.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_143.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_172.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_19.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_22.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_25.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_48.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_83.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_97.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_121.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_131.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_10.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_33.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_35.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_99.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_114.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_127.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_140.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_147.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_45.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_14.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_119.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_122.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_172.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_175.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_180.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_186.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_28.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_41.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_102.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_120.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_151.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_173.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_187.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_191.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_2.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_142.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_149.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_30.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_73.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_116.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_143.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_196.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_197.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_11.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_105.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_118.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_122.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_125.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_141.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_149.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_156.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_53.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_66.pdf cthk.io_hyber.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_73.pdf cthk.io_hyber.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_78.pdf cthk.io_hyber.exe - 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 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cthk.io_hyber.exe" cthk.io_hyber.exe Set value (str) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Malware = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cthk.io_hyber.exe" cthk.io_hyber.exe - Drops file in System32 directory 3 IoCs
description ioc Process File opened for modification C:\Windows\system32\sysupdate.exe cthk.io_hyber.exe File created C:\Windows\system32\svchost.exe cthk.io_hyber.exe File created C:\Windows\system32\sysupdate.exe cthk.io_hyber.exe - Enumerates processes with tasklist 1 TTPs 1 IoCs
pid Process 840 tasklist.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\SysUpdate\\wall.bmp" cthk.io_hyber.exe - Launches sc.exe 10 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1040 sc.exe 1440 sc.exe 2024 sc.exe 1472 sc.exe 4792 sc.exe 1616 sc.exe 4144 sc.exe 2212 sc.exe 2756 sc.exe 2020 sc.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe - Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 3456 NETSTAT.EXE 2860 ipconfig.exe - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 432 systeminfo.exe - Interacts with shadow copies 3 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 3720 vssadmin.exe 1880 vssadmin.exe - Modifies Control Panel 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Control Panel\Desktop\WallpaperStyle = "2" cthk.io_hyber.exe - Modifies data under HKEY_USERS 15 IoCs
description ioc Process Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = 99ebff004cc2ff000091f8000078d4000067c000003e9200001a6800f7630c00 LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292114432" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4290799360" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292114432" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365268" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365268" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "240" LogonUI.exe - Modifies registry class 16 IoCs
description ioc Process Key deleted \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\ms-settings\shell\open\command cthk.io_hyber.exe Key deleted \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\ms-settings\shell\open cthk.io_hyber.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open cthk.io_hyber.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\cthk.io_hyber.exe\" \"%1\"" cthk.io_hyber.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\ms-settings cthk.io_hyber.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\ms-settings\shell cthk.io_hyber.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\ms-settings\shell\open cthk.io_hyber.exe Key deleted \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\ms-settings\shell cthk.io_hyber.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet cthk.io_hyber.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\ms-settings\shell\open\command cthk.io_hyber.exe Set value (str) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\ms-settings\shell\open\command\DelegateExecute cthk.io_hyber.exe Key deleted \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\ms-settings cthk.io_hyber.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell cthk.io_hyber.exe Set value (str) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\ms-settings\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cthk.io_hyber.exe" cthk.io_hyber.exe Set value (str) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\.pdf\ = "PDFBotnet" cthk.io_hyber.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open\command cthk.io_hyber.exe - Runs net.exe
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1260 schtasks.exe 3144 schtasks.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1300 powershell.exe 1300 powershell.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe 912 cthk.io_hyber.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 848 LogonUI.exe Token: SeCreatePagefilePrivilege 848 LogonUI.exe Token: SeDebugPrivilege 912 cthk.io_hyber.exe Token: SeDebugPrivilege 1300 powershell.exe Token: SeIncBasePriorityPrivilege 912 cthk.io_hyber.exe Token: SeDebugPrivilege 2400 whoami.exe Token: SeDebugPrivilege 840 tasklist.exe Token: SeDebugPrivilege 3456 NETSTAT.EXE Token: SeBackupPrivilege 1692 vssvc.exe Token: SeRestorePrivilege 1692 vssvc.exe Token: SeAuditPrivilege 1692 vssvc.exe Token: SeIncreaseQuotaPrivilege 3116 WMIC.exe Token: SeSecurityPrivilege 3116 WMIC.exe Token: SeTakeOwnershipPrivilege 3116 WMIC.exe Token: SeLoadDriverPrivilege 3116 WMIC.exe Token: SeSystemProfilePrivilege 3116 WMIC.exe Token: SeSystemtimePrivilege 3116 WMIC.exe Token: SeProfSingleProcessPrivilege 3116 WMIC.exe Token: SeIncBasePriorityPrivilege 3116 WMIC.exe Token: SeCreatePagefilePrivilege 3116 WMIC.exe Token: SeBackupPrivilege 3116 WMIC.exe Token: SeRestorePrivilege 3116 WMIC.exe Token: SeShutdownPrivilege 3116 WMIC.exe Token: SeDebugPrivilege 3116 WMIC.exe Token: SeSystemEnvironmentPrivilege 3116 WMIC.exe Token: SeRemoteShutdownPrivilege 3116 WMIC.exe Token: SeUndockPrivilege 3116 WMIC.exe Token: SeManageVolumePrivilege 3116 WMIC.exe Token: 33 3116 WMIC.exe Token: 34 3116 WMIC.exe Token: 35 3116 WMIC.exe Token: 36 3116 WMIC.exe Token: SeIncreaseQuotaPrivilege 3116 WMIC.exe Token: SeSecurityPrivilege 3116 WMIC.exe Token: SeTakeOwnershipPrivilege 3116 WMIC.exe Token: SeLoadDriverPrivilege 3116 WMIC.exe Token: SeSystemProfilePrivilege 3116 WMIC.exe Token: SeSystemtimePrivilege 3116 WMIC.exe Token: SeProfSingleProcessPrivilege 3116 WMIC.exe Token: SeIncBasePriorityPrivilege 3116 WMIC.exe Token: SeCreatePagefilePrivilege 3116 WMIC.exe Token: SeBackupPrivilege 3116 WMIC.exe Token: SeRestorePrivilege 3116 WMIC.exe Token: SeShutdownPrivilege 3116 WMIC.exe Token: SeDebugPrivilege 3116 WMIC.exe Token: SeSystemEnvironmentPrivilege 3116 WMIC.exe Token: SeRemoteShutdownPrivilege 3116 WMIC.exe Token: SeUndockPrivilege 3116 WMIC.exe Token: SeManageVolumePrivilege 3116 WMIC.exe Token: 33 3116 WMIC.exe Token: 34 3116 WMIC.exe Token: 35 3116 WMIC.exe Token: 36 3116 WMIC.exe Token: SeIncreaseQuotaPrivilege 808 WMIC.exe Token: SeSecurityPrivilege 808 WMIC.exe Token: SeTakeOwnershipPrivilege 808 WMIC.exe Token: SeLoadDriverPrivilege 808 WMIC.exe Token: SeSystemProfilePrivilege 808 WMIC.exe Token: SeSystemtimePrivilege 808 WMIC.exe Token: SeProfSingleProcessPrivilege 808 WMIC.exe Token: SeIncBasePriorityPrivilege 808 WMIC.exe Token: SeCreatePagefilePrivilege 808 WMIC.exe Token: SeBackupPrivilege 808 WMIC.exe Token: SeRestorePrivilege 808 WMIC.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 912 cthk.io_hyber.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 848 LogonUI.exe 912 cthk.io_hyber.exe - Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 912 wrote to memory of 1300 912 cthk.io_hyber.exe 81 PID 912 wrote to memory of 2212 912 cthk.io_hyber.exe 83 PID 912 wrote to memory of 1040 912 cthk.io_hyber.exe 85 PID 912 wrote to memory of 1440 912 cthk.io_hyber.exe 87 PID 912 wrote to memory of 2756 912 cthk.io_hyber.exe 89 PID 912 wrote to memory of 2024 912 cthk.io_hyber.exe 91 PID 912 wrote to memory of 1472 912 cthk.io_hyber.exe 93 PID 912 wrote to memory of 4792 912 cthk.io_hyber.exe 95 PID 912 wrote to memory of 1616 912 cthk.io_hyber.exe 97 PID 912 wrote to memory of 4176 912 cthk.io_hyber.exe 99 PID 4176 wrote to memory of 4624 4176 fodhelper.exe 100 PID 912 wrote to memory of 3460 912 cthk.io_hyber.exe 101 PID 912 wrote to memory of 1260 912 cthk.io_hyber.exe 102 PID 912 wrote to memory of 1516 912 cthk.io_hyber.exe 106 PID 912 wrote to memory of 1584 912 cthk.io_hyber.exe 107 PID 912 wrote to memory of 2064 912 cthk.io_hyber.exe 108 PID 912 wrote to memory of 2692 912 cthk.io_hyber.exe 109 PID 912 wrote to memory of 3272 912 cthk.io_hyber.exe 110 PID 912 wrote to memory of 2228 912 cthk.io_hyber.exe 111 PID 912 wrote to memory of 1996 912 cthk.io_hyber.exe 112 PID 912 wrote to memory of 3144 912 cthk.io_hyber.exe 113 PID 912 wrote to memory of 1616 912 cthk.io_hyber.exe 122 PID 2064 wrote to memory of 840 2064 cmd.exe 124 PID 2692 wrote to memory of 2400 2692 cmd.exe 125 PID 1584 wrote to memory of 432 1584 cmd.exe 126 PID 2228 wrote to memory of 2860 2228 cmd.exe 127 PID 1996 wrote to memory of 3456 1996 cmd.exe 128 PID 3272 wrote to memory of 4532 3272 cmd.exe 129 PID 1516 wrote to memory of 3720 1516 cmd.exe 130 PID 4532 wrote to memory of 844 4532 net.exe 131 PID 912 wrote to memory of 2728 912 cthk.io_hyber.exe 134 PID 1516 wrote to memory of 3116 1516 cmd.exe 135 PID 912 wrote to memory of 1880 912 cthk.io_hyber.exe 137 PID 912 wrote to memory of 808 912 cthk.io_hyber.exe 139 PID 912 wrote to memory of 900 912 cthk.io_hyber.exe 140 PID 912 wrote to memory of 2968 912 cthk.io_hyber.exe 141 PID 912 wrote to memory of 2020 912 cthk.io_hyber.exe 142 PID 912 wrote to memory of 4144 912 cthk.io_hyber.exe 148 PID 900 wrote to memory of 4768 900 net.exe 151 - 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
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C:\Users\Admin\AppData\Local\Temp\cthk.io_hyber.exe"C:\Users\Admin\AppData\Local\Temp\cthk.io_hyber.exe"1⤵
- Modifies Windows Defender DisableAntiSpyware settings
- Disables RegEdit via registry modification
- Drops file in Drivers directory
- Drops startup file
- Adds Run key to start application
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:912 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -NonI -W Hidden -Exec Bypass -Enc UwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBSAGUAYQBsAHQAaQBtAGUATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA7ACAAUwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBCAGUAaABhAHYAaQBvAHIATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA=2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1300
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" stop wscsvc2⤵
- Launches sc.exe
PID:2212
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" config wscsvc start= disabled2⤵
- Launches sc.exe
PID:1040
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" stop SecurityHealthService2⤵
- Launches sc.exe
PID:1440
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" config SecurityHealthService start= disabled2⤵
- Launches sc.exe
PID:2756
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" stop WinDefend2⤵
- Launches sc.exe
PID:2024
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" config WinDefend start= disabled2⤵
- Launches sc.exe
PID:1472
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" stop MsMpSvc2⤵
- Launches sc.exe
PID:4792
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" config MsMpSvc start= disabled2⤵
- Launches sc.exe
PID:1616
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C:\Windows\System32\fodhelper.exe"C:\Windows\System32\fodhelper.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4176 -
C:\Users\Admin\AppData\Local\Temp\cthk.io_hyber.exe"C:\Users\Admin\AppData\Local\Temp\cthk.io_hyber.exe"3⤵PID:4624
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C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" C:\Users\Admin\AppData\Local\Temp\makelnk.vbs2⤵PID:3460
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "SysUpdateTask" /tr "C:\Users\Admin\AppData\Local\Temp\cthk.io_hyber.exe" /sc onlogon /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:1260
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\del.bat" "2⤵
- Suspicious use of WriteProcessMemory
PID:1516 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:3720
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
PID:3116
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c systeminfo > "C:\ProgramData\SysUpdate\Logs\sysinfo.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:1584 -
C:\Windows\system32\systeminfo.exesysteminfo3⤵
- Gathers system information
PID:432
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c tasklist > "C:\ProgramData\SysUpdate\Logs\tasklist.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:2064 -
C:\Windows\system32\tasklist.exetasklist3⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:840
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c whoami > "C:\ProgramData\SysUpdate\Logs\whoami.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:2692 -
C:\Windows\system32\whoami.exewhoami3⤵
- Suspicious use of AdjustPrivilegeToken
PID:2400
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c net user > "C:\ProgramData\SysUpdate\Logs\netuser.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:3272 -
C:\Windows\system32\net.exenet user3⤵
- Suspicious use of WriteProcessMemory
PID:4532 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 user4⤵PID:844
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c ipconfig /all > "C:\ProgramData\SysUpdate\Logs\ipconfig.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:2228 -
C:\Windows\system32\ipconfig.exeipconfig /all3⤵
- Gathers network information
PID:2860
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C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c netstat -an > "C:\ProgramData\SysUpdate\Logs\netstat.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Windows\system32\NETSTAT.EXEnetstat -an3⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:3456
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "RansomwareCheck" /tr "C:\Users\Admin\AppData\Local\Temp\cthk.io_hyber.exe" /sc daily /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:3144
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C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs2⤵PID:1616
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C:\Windows\System32\notepad.exe"C:\Windows\System32\notepad.exe"2⤵PID:2728
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C:\Windows\System32\vssadmin.exe"C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet2⤵
- Interacts with shadow copies
PID:1880
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C:\Windows\System32\wbem\WMIC.exe"C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:808
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C:\Windows\System32\net.exe"C:\Windows\System32\net.exe" stop srservice2⤵
- Suspicious use of WriteProcessMemory
PID:900 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop srservice3⤵PID:4768
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C:\Windows\System32\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall set allprofiles state off2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:2968
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" config i8042prt start= disabled2⤵
- Launches sc.exe
PID:2020
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" stop i8042prt2⤵
- Launches sc.exe
PID:4144
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x0 /state0:0xa3a19055 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:848
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C:\Users\Admin\AppData\Local\Temp\cthk.io_hyber.exeC:\Users\Admin\AppData\Local\Temp\cthk.io_hyber.exe1⤵PID:540
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1692
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Scheduled Task/Job
1Scheduled Task
1System Services
2Service Execution
2Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
4Windows Service
4Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
4Windows Service
4Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Direct Volume Access
1Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
1Indicator Removal
2File Deletion
2Modify Registry
3Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
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Downloads
- Path C:\ProgramData\invoice_1.pdf
- Size 69KB
- SHA256 1ea697edd7c6d6c5bbbf2433bd3c64d379683b66f63f0abc5c98bd74418d227d
- MD5 4605f65f830205fa8db910a382dc597a
- SHA1 2856b2d090c74448d13ec789fe51a94f96aa9adf
- SHA512 6816deea95e9f8c5d5b808a238253b956fbb5f1014bbde471ec61db2a64e55a64827c25e3cb5bf0ea459a0495072d1f535074fe856869381a4382593d20f7c93
- SSDEEP 1536:M3PIB0d9vnV1TBp2tm9GE1pei2GVhkMcrvcE/a44V8OI81ReLvj80Cs:MNn19p2A/1peNDMGUI4V8T81ReLvo0Cs
- TLSH T17B6319378A23FDC1673F2D80F05439911C853E6787B526A8FFC50A9929E5648DF2E49C
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\SystemVolumeInformation\doc_3.pdf
- Size 68KB
- SHA256 a2a10d9dadafd2fa3d6186d2641fb29f30a6b40cf9d84358fbf7a1439f3216cd
- MD5 e3dc2ae8c7d2ac4cd89e6683fc8d8427
- SHA1 bdea3e240f775d9c695e466cff4cf173580eca5c
- SHA512 d8af62ca2005581d27e1fdb9e6ca0d1933452c0ada8c8fddbe59d87927e30e40d87d013ea9933258ab74c90c7461b8ff0db6715051de730ffdb15c05a48cb36c
- SSDEEP 1536:s3PIB0d9vnV1TBp2tm9GE1pei2GVhkMcrvcE/a44V8OI81ReLvj80Cv:sNn19p2A/1peNDMGUI4V8T81ReLvo0Cv
- TLSH T10A6319378A23FDC1673F2D80F05439911C853E6B87B52668FFC50A9929E6648DF2E49C
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\cthk.io_hyber.exe.log
- Size 660B
- SHA256 0e692bcbba51ca4e766a427c9f28a7a4a9e326d2cf835493e57a9dc2121326b5
- MD5 284393596fdd49bebd7b861bf339b82d
- SHA1 a36767dfc423b3c7fd3ff439b616862743a053c8
- SHA512 8d3247ee0c3bf9a9fceea23eb5c646dbd8b3d954f4d62622f49070629e642d6a13bfb0d27949e2355c081d45f5a1101f05a9972782a0f0a478ed90f551d2efeb
- TLSH T1BD0144703376A0D889263F820C2E52C857BF433AA150AD18B998628DED3601B6B212E7
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_do0ozzrh.mb5.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs
- Size 238B
- SHA256 079166902bab6ad1f9bd138f7f256a925f041325017db49a0503b6366b87ed33
- MD5 1b1f9b33013b52d8636669b9e327a2d0
- SHA1 37d1b1cb52457948cf7eb91eaaf3bb7998c95546
- SHA512 77c85da6018c3c3c85d2b4bed8ba886450d1204f07b4a3c4d49dcfbe3ced702a198a9ff1b9da4e81222ae874a102d57a2d85d6bb6cd4374f8cdf8de03aeb7645
- TLSH T182D0A78BB14DC6A90001523B81F3CE8CE5E5486D3B57BE704AA5DD4E32908958AF6543
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\del.bat
- Size 59B
- SHA256 a51f2a0f053ac35b4158bb02b75421ab3698e1d0ee4f926abf1bae3af1570c53
- MD5 9cecbebdcdd60358132849714a3b82f7
- SHA1 be6e20834a5726f3742f05e6bdfaff16118b147f
- SHA512 7b48bd66b4c741d2de2e8b7bc0eab8f438ddc1ed0c73e8b70add9bee400f6640f692884965032616e2d6911a22a17d1d3762421aa49fe021660c9052cfc0675a
- TLSH T13DA002620F961E5469529E5AD73425239D1F104CD1390012F05232903DA98DE0EC2144
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\makelnk.vbs
- Size 239B
- SHA256 d8e38a319f16355889f9bfc8b2f4c38f0e5d34ff579ae29153688f9484a135d9
- MD5 59b97653d19a37e946e7b542a8b2cd37
- SHA1 32bef31f3bddaa0534ca57fda66f6a09b29d2c2e
- SHA512 7755e07ae4413fd23caf6ae734f90ea4fdd25e683c305d55d897ec133bd3746d2008b4170f0db1fecdba031f9a8bac6e0a604d7bb4667b3dc681bbf0545ec590
- TLSH T15CD0A78BB14DC6A90001523B80F3CE8CE6E1486D3B57BE709AA5DD0F32808958AF6543
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\System32\sysupdate.exe
- Size 51KB
- SHA256 c2c79725c6e6fd8132fc9aa00cc5d5e869816fd64ce89acd1bfc8138fea74583
- MD5 054916810079a00f016f3b040cb825db
- SHA1 8c9e6aa44062d44bc877982f4f9199ee7c6a6a2c
- SHA512 32e343651f77408cb5164b07b2a230a9733fbec7f0df28d10b2083bbe4c149bd0b5a935818035fbba4d32e938dbbc1f0faa5372ac3253e70690ace4a9f23333c
- SSDEEP 768:4VTtLYhD+7o19oDJLnk5zvSiyk//b8VDnh/VAe77ePLf9jSuchE2s:KYhD+Yuhnhiz/bYJ7IljSuc7s
- TLSH T1DD33094877ED4112E1BF4EBE99B184129731F463DD22DB8E0AD8459E09F3744CCA8B6B
- MD5 SHA1 SHA512 SSDEEP TLSH