Analysis
- max time kernel
929s - max time network
548s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/09/2026, 07:39
Behavioral task
behavioral1
Sample
filecleaner_setup.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
filecleaner_setup.exe
Resource
win11ltsc2024-20260709-en
General
- Target filecleaner_setup.exe
- Size 5.6MB
- Sample260909-jg7c2atzcs
- SHA256 8d10322d48c94657bab8df76d0a403ef35471304334069270af15da3a61c8e1e
- MD5 3c41d45c2250cc27dbd87966fb5b96aa
- SHA1 e9a3fb806aa535ba992223a53bbb4b91a9f653f4
- SHA512 e6148f23360df2c7e5b033450338746c36dfe40d107cba62327afe8fe0d632ece3a61ba4201b4557804c11dcb736ff4718aedd15f465e79ebfbe5e36cc9e3c96
- SSDEEP 98304:srQ2qnx2AzXWBNEC8GPk6S6/PhHeN0v3zGdZRfOWYt7Ij/wv4G869NvoRy:sXtAzXWBCxYdw0v4fbNj49Cy
- TLSH T15B4623E27682A077EA6598F4894853317F2EAE173CD7FD652EFEF00C897429008B5653
- MD5 SHA1 SHA512 SSDEEP TLSH
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.
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Active Setup\Installed Components explorer.exe - Executes dropped EXE 1 IoCs
pid Process 260 filecleaner_setup.tmp - Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: explorer.exe File opened (read-only) \??\F: explorer.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language filecleaner_setup.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language filecleaner_setup.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language TaskKill.exe - Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
resource yara_rule behavioral2/memory/244-0-0x0000000000400000-0x000000000044B000-memory.dmp innosetup behavioral2/memory/244-8-0x0000000000400000-0x000000000044B000-memory.dmp innosetup - Checks SCSI registry key(s) 3 TTPs 62 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{259abffc-50a7-47ce-af08-68c9a7d73366}\000C explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Properties\{259abffc-50a7-47ce-af08-68c9a7d73366}\000C explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{51236583-0c4a-4fe8-b81f-166aec13f510}\007A explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{259abffc-50a7-47ce-af08-68c9a7d73366}\000C explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{afd97640-86a3-4210-b67c-289c41aabe55}\0003 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{a45c254e-df1c-4efd-8020-67d146a850e0}\0011 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{540b947e-8b40-45bc-a8a2-6a0b894cbda2}\0009 explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\UpperFilters explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Properties\{8c7ed206-3f8a-4827-b3ab-ae9e1faefc6c}\0004 explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\HardwareID explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Properties\{78c34fc8-104a-4aca-9ea4-524d52996e57}\005A explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{8c7ed206-3f8a-4827-b3ab-ae9e1faefc6c}\0002 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Properties\{51236583-0c4a-4fe8-b81f-166aec13f510}\0064 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002 explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\ConfigFlags explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{8c7ed206-3f8a-4827-b3ab-ae9e1faefc6c}\0002 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{cf73bb51-3abf-44a2-85e0-9a3dc7a12132}\0006 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{cf73bb51-3abf-44a2-85e0-9a3dc7a12132}\0006 explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\FriendlyName explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{78c34fc8-104a-4aca-9ea4-524d52996e57}\005A explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{51236583-0c4a-4fe8-b81f-166aec13f510}\007A explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\UpperFilters explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\FriendlyName explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{51236583-0c4a-4fe8-b81f-166aec13f510}\0064 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{a45c254e-df1c-4efd-8020-67d146a850e0}\0011 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{8c7ed206-3f8a-4827-b3ab-ae9e1faefc6c}\0004 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{540b947e-8b40-45bc-a8a2-6a0b894cbda2}\0009 explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Capabilities explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_HL-DT-ST_DVD+-RW\4&215468A5&0&010000 explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\ConfigFlags explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{540b947e-8b40-45bc-a8a2-6a0b894cbda2}\0009 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{78c34fc8-104a-4aca-9ea4-524d52996e57}\005A explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Properties\{cf73bb51-3abf-44a2-85e0-9a3dc7a12132}\0006 explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\HardwareID explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\HardwareID explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{78c34fc8-104a-4aca-9ea4-524d52996e57}\005A explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Properties\{540b947e-8b40-45bc-a8a2-6a0b894cbda2}\0009 explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\FriendlyName explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Properties\{51236583-0c4a-4fe8-b81f-166aec13f510}\007A explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{51236583-0c4a-4fe8-b81f-166aec13f510}\0064 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{cf73bb51-3abf-44a2-85e0-9a3dc7a12132}\0006 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{259abffc-50a7-47ce-af08-68c9a7d73366}\000C explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{8c7ed206-3f8a-4827-b3ab-ae9e1faefc6c}\0004 explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Capabilities explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Properties\{afd97640-86a3-4210-b67c-289c41aabe55}\0003 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{afd97640-86a3-4210-b67c-289c41aabe55}\0002 explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Capabilities explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{51236583-0c4a-4fe8-b81f-166aec13f510}\0064 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{afd97640-86a3-4210-b67c-289c41aabe55}\0002 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{8c7ed206-3f8a-4827-b3ab-ae9e1faefc6c}\0004 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{51236583-0c4a-4fe8-b81f-166aec13f510}\007A explorer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Capabilities explorer.exe - Kills process with taskkill 1 IoCs
pid Process 4516 TaskKill.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Internet Explorer\Main explorer.exe - Modifies registry class 38 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\TrayNotify explorer.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\DomStorageState SearchHost.exe Set value (int) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\DOMStorage\microsoftwindows.client.cbs\ = "23" SearchHost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A0953C92-50DC-43bf-BE83-3742FED03C9C}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\EdpDomStorage\microsoftwindows.client.cbs SearchHost.exe Set value (int) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\DOMStorage\Total\ = "56" SearchHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.startmenuexperiencehost_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix StartMenuExperienceHost.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:" SearchHost.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\EdpDomStorage SearchHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.startmenuexperiencehost_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:" StartMenuExperienceHost.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\DOMStorage\microsoftwindows.client.cbs SearchHost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1CF1260C-4DD0-4ebb-811F-33C572699FDE}\Instance\ explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{374DE290-123F-4565-9164-39C4925E467B}\Instance\ explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ explorer.exe Key created \REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-4046655672-1449839301-2197395821-1000\{7DDBD9F4-DC68-436E-8554-A0A4A053B80A} explorer.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\MuiCache StartMenuExperienceHost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\DOMStorage\client.cbs SearchHost.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\EdpDomStorage\Total SearchHost.exe Set value (int) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\DOMStorage\Total\ = "23" SearchHost.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\MuiCache SearchHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix SearchHost.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\DOMStorage\Total SearchHost.exe Set value (int) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\DOMStorage\client.cbs\Total = "56" SearchHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.startmenuexperiencehost_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:" StartMenuExperienceHost.exe Key created \REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-4046655672-1449839301-2197395821-1000\{5186EBE6-767A-4796-8464-FA9F889A6EEF} explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\EdpDomStorage\client.cbs SearchHost.exe Key created \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\DOMStorage SearchHost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\Instance\ explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{3ADD1653-EB32-4cb0-BBD7-DFA0ABB5ACCA}\Instance\ explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:" SearchHost.exe Set value (int) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\DOMStorage\microsoftwindows.client.cbs\ = "56" SearchHost.exe Set value (int) \REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Explorer\DOMStorage\client.cbs\Total = "23" SearchHost.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 6072 explorer.exe 6072 explorer.exe - Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: SeDebugPrivilege 4516 TaskKill.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe Token: SeShutdownPrivilege 6072 explorer.exe Token: SeCreatePagefilePrivilege 6072 explorer.exe - Suspicious use of FindShellTrayWindow 54 IoCs
pid Process 5424 sihost.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe - Suspicious use of SendNotifyMessage 43 IoCs
pid Process 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe 6072 explorer.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 3980 StartMenuExperienceHost.exe 4744 SearchHost.exe 6072 explorer.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 244 wrote to memory of 260 244 filecleaner_setup.exe 91 PID 260 wrote to memory of 4516 260 filecleaner_setup.tmp 92 PID 5424 wrote to memory of 6072 5424 sihost.exe 100 - 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 WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- 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\filecleaner_setup.exe"C:\Users\Admin\AppData\Local\Temp\filecleaner_setup.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:244 -
C:\Users\Admin\AppData\Local\Temp\is-FU6S0.tmp\filecleaner_setup.tmp"C:\Users\Admin\AppData\Local\Temp\is-FU6S0.tmp\filecleaner_setup.tmp" /SL5="$5018A,5362626,267776,C:\Users\Admin\AppData\Local\Temp\filecleaner_setup.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:260 -
C:\Windows\SysWOW64\TaskKill.exe"C:\Windows\system32\TaskKill.exe" /F /IM FileCleaner.exe3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4516
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:2508
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C:\Windows\system32\sihost.exesihost.exe1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5424 -
C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
- 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 AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:6072
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4744
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:3980
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C:\Windows\System32\SecurityHealthHost.exe\\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding1⤵PID:5544
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
- Size 599B
- SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
- MD5 658ab8c32d4cc5deb36ac5f63da4658b
- SHA1 30c12cd871ff0c2c4098d794e9ae4f2540586813
- SHA512 a73030c008ef3c2e274f11c90bfe79fa8ae402f76801c710bed8cc1ab1218a84858ea566b772be4bade8ef639a019c57d297028df15b64b3753482cf0f3c8f85
- TLSH T12AF05C83EB6A1B72C456123DC8EE56E47B31D1846EC11367A2107B1D3C2B7192D174BD
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-FU6S0.tmp\filecleaner_setup.tmp
- Size 1.3MB
- SHA256 533d15375984d2b95932ca90f17fb49e5945e3678dafe0d736d1dc6863f69a7c
- MD5 7d904a4f7cb142ee2caf2204130295cc
- SHA1 cfb33a207a422d3c1cf0506102f65f61142df4be
- SHA512 dadc34a573aef88f2194377d23a3e2a1534c9a3eaf0fd0245d1bfeb1c455b59e64c2b2283d68ace3fa1831e5373178132e1f7ed52262df099bb9b22293bbca5a
- SSDEEP 24576:ctdAm9DUi/CR3wCkCiRgoG7hBaHkbEXXeG/jFt52JSRTx9/v:EqTytRFk6ek17J
- TLSH T178551AE1B3914433D5731AF58C6A83747B2E7E133EA4ED5A3EB99E0C4E34A406935293
- MD5 SHA1 SHA512 SSDEEP TLSH