Overview
overview
8Static
static
5LetsVPN.exe
windows10-2004-x64
8LetsVPN.exe
windows11-ltsc_2024-x64
8$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-ltsc_2024-x64
3LetsPRO.exe
windows10-2004-x64
8LetsPRO.exe
windows11-ltsc_2024-x64
8Microsoft.exe
windows10-2004-x64
8Microsoft.exe
windows11-ltsc_2024-x64
8Update.exe
windows10-2004-x64
1Update.exe
windows11-ltsc_2024-x64
1api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-1.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3api-ms-win...-0.dll
windows10-2004-x64
3Analysis
- max time kernel
149s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
04/07/2026, 12:24
Static task
static1
Behavioral task
behavioral1
Sample
LetsVPN.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
LetsVPN.exe
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral7
Sample
LetsPRO.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
LetsPRO.exe
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral9
Sample
Microsoft.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral10
Sample
Microsoft.exe
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral11
Sample
Update.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral12
Sample
Update.exe
Resource
win11ltsc2024-20260629-en
Behavioral task
behavioral13
Sample
api-ms-win-core-console-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral14
Sample
api-ms-win-core-datetime-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral15
Sample
api-ms-win-core-debug-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral16
Sample
api-ms-win-core-errorhandling-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral17
Sample
api-ms-win-core-file-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral18
Sample
api-ms-win-core-file-l1-2-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral19
Sample
api-ms-win-core-file-l2-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral20
Sample
api-ms-win-core-handle-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral21
Sample
api-ms-win-core-heap-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral22
Sample
api-ms-win-core-interlocked-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral23
Sample
api-ms-win-core-libraryloader-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral24
Sample
api-ms-win-core-localization-l1-2-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral25
Sample
api-ms-win-core-memory-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral26
Sample
api-ms-win-core-namedpipe-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral27
Sample
api-ms-win-core-processenvironment-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral28
Sample
api-ms-win-core-processthreads-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral29
Sample
api-ms-win-core-processthreads-l1-1-1.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral30
Sample
api-ms-win-core-profile-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral31
Sample
api-ms-win-core-rtlsupport-l1-1-0.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral32
Sample
api-ms-win-core-string-l1-1-0.dll
Resource
win10v2004-20260513-en
General
- Target LetsPRO.exe
- Size 243KB
- Sample260704-plefpsfs9v
- SHA256 0e66192b248183324a6f3afc294e25299d096c5fbe9f99dc351613a1cf8d9d84
- MD5 fb49018cd616909b9581551e7913535e
- SHA1 2074d4eead8d3f637649c44042b70f6894ff64a3
- SHA512 e5d8a4d65cc439cbca9d7fb3f9a8b4f5444a096e12197c840dea8c5b2b588049453a04a5f2554328208021ad31eb21d20671378a438d6aa47c7c0b39765b1054
- SSDEEP 6144:xZzvhs2Z4n1E7g34XtVYAOfTd/z44JsQwuU7pI2:xJ+2Z4nShVY5JUUU1p
- TLSH T1B2348B1175D38472E5B30A3008F4E6B5AA7DFC710E659E7B63D9072E0F702C29A35EA6
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Drops file in Drivers directory 3 IoCs
description ioc Process File opened for modification C:\Windows\System32\drivers\SET54C2.tmp DrvInst.exe File created C:\Windows\System32\drivers\SET54C2.tmp DrvInst.exe File opened for modification C:\Windows\System32\drivers\tap0901.sys DrvInst.exe - Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 53 119.29.29.29 2240 LetsPRO.exe Destination IP 15 119.29.29.29 2240 LetsPRO.exe Destination IP 33 119.29.29.29 2240 LetsPRO.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\LetsPRO = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\app-3.20.0\\LetsPRO.exe\" /silent" LetsPRO.exe -
pid Process 1720 cmd.exe 3172 ARP.EXE - Drops file in System32 directory 16 IoCs
description ioc Process File created C:\Windows\System32\DriverStore\Temp\{46e2364f-965e-de45-b716-c957819913c6}\SET531E.tmp DrvInst.exe File created C:\Windows\System32\DriverStore\FileRepository\oemvista.inf_amd64_662fd96dfdced4ae\oemvista.PNF tapinstall.exe File opened for modification C:\Windows\System32\DriverStore\Temp\{46e2364f-965e-de45-b716-c957819913c6}\tap0901.sys DrvInst.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\oemvista.inf_amd64_662fd96dfdced4ae\tap0901.cat DrvInst.exe File opened for modification C:\Windows\System32\DriverStore\Temp\{46e2364f-965e-de45-b716-c957819913c6} DrvInst.exe File opened for modification C:\Windows\System32\CatRoot2\dberr.txt DrvInst.exe File created C:\Windows\System32\DriverStore\Temp\{46e2364f-965e-de45-b716-c957819913c6}\SET531C.tmp DrvInst.exe File opened for modification C:\Windows\System32\DriverStore\Temp\{46e2364f-965e-de45-b716-c957819913c6}\SET531D.tmp DrvInst.exe File created C:\Windows\System32\DriverStore\Temp\{46e2364f-965e-de45-b716-c957819913c6}\SET531D.tmp DrvInst.exe File opened for modification C:\Windows\System32\DriverStore\Temp\{46e2364f-965e-de45-b716-c957819913c6}\tap0901.cat DrvInst.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\oemvista.inf_amd64_662fd96dfdced4ae\tap0901.sys DrvInst.exe File opened for modification C:\Windows\System32\DriverStore\Temp\{46e2364f-965e-de45-b716-c957819913c6}\oemvista.inf DrvInst.exe File created C:\Windows\System32\DriverStore\drvstore.tmp DrvInst.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\oemvista.inf_amd64_662fd96dfdced4ae\oemvista.inf DrvInst.exe File opened for modification C:\Windows\System32\DriverStore\Temp\{46e2364f-965e-de45-b716-c957819913c6}\SET531C.tmp DrvInst.exe File opened for modification C:\Windows\System32\DriverStore\Temp\{46e2364f-965e-de45-b716-c957819913c6}\SET531E.tmp DrvInst.exe - Drops file in Windows directory 6 IoCs
description ioc Process File opened for modification C:\Windows\INF\setupapi.dev.log tapinstall.exe File opened for modification C:\Windows\INF\setupapi.dev.log svchost.exe File opened for modification C:\Windows\INF\setupapi.dev.log DrvInst.exe File opened for modification C:\Windows\inf\oem3.inf DrvInst.exe File created C:\Windows\inf\oem3.inf DrvInst.exe File opened for modification C:\Windows\INF\setupapi.dev.log DrvInst.exe - System Location Discovery: System Language Discovery 1 TTPs 10 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 LetsPRO.exe 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 ipconfig.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LetsPRO.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ROUTE.EXE 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 ARP.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LetsPRO.exe - 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\{83da6326-97a6-4088-9453-a1923f573b29}\0009 svchost.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\CompatibleIDs DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Phantom DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\LowerFilters DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\CompatibleIDs tapinstall.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Service DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Phantom DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\HardwareID DrvInst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_MSFT&PROD_VIRTUAL_DVD-ROM\2&1F4ADFFE&0&000002 DrvInst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Filters DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\UpperFilters DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\LowerFilters DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Phantom tapinstall.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Properties\{83da6326-97a6-4088-9453-a1923f573b29}\0009 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\UpperFilters DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\UpperFilters DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\CompatibleIDs tapinstall.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_MSFT&PROD_VIRTUAL_DVD-ROM\2&1F4ADFFE&0&000002 tapinstall.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\HardwareID DrvInst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Filters DrvInst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 tapinstall.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\ConfigFlags tapinstall.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\HardwareID DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\LowerFilters DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID tapinstall.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_MSFT&PROD_VIRTUAL_DVD-ROM\2&1F4ADFFE&0&000001 tapinstall.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_HL-DT-ST_DVD+-RW\4&215468A5&0&010000 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_MSFT&PROD_VIRTUAL_DVD-ROM\2&1F4ADFFE&0&000001 DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Phantom DrvInst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_HL-DT-ST_DVD+-RW\4&215468A5&0&010000 DrvInst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\LowerFilters DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\ConfigFlags tapinstall.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_MSFT&PROD_VIRTUAL_DVD-ROM\2&1F4ADFFE&0&000002 svchost.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\ConfigFlags svchost.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Service DrvInst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Filters DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Phantom tapinstall.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_MSFT&PROD_VIRTUAL_DVD-ROM\2&1F4ADFFE&0&000001 svchost.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\ConfigFlags svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001 DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\UpperFilters DrvInst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Filters DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\HardwareID tapinstall.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{83da6326-97a6-4088-9453-a1923f573b29}\0009 svchost.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\CompatibleIDs DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\CompatibleIDs DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Service DrvInst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002 DrvInst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000 DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\HardwareID tapinstall.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_HL-DT-ST_DVD+-RW\4&215468A5&0&010000 tapinstall.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{83da6326-97a6-4088-9453-a1923f573b29}\0009 svchost.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Phantom DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\CompatibleIDs DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\CompatibleIDs tapinstall.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 svchost.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\Service DrvInst.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\CompatibleIDs tapinstall.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\HardwareID tapinstall.exe - Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
pid Process 2932 ipconfig.exe - Modifies data under HKEY_USERS 42 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs DrvInst.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root DrvInst.exe - Modifies registry class 9 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\letsvpn2\DefaultIcon\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\app-3.20.0\\LetsPRO.exe\",1" LetsPRO.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\letsvpn2\shell\open LetsPRO.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\letsvpn2\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\app-3.20.0\\LetsPRO.exe\" \"%1\"" LetsPRO.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\letsvpn2\DefaultIcon LetsPRO.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\letsvpn2\shell\open\command LetsPRO.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\letsvpn2\shell LetsPRO.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\letsvpn2 LetsPRO.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\letsvpn2\ = "letsvpn2Protocol" LetsPRO.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\letsvpn2\URL Protocol = "C:\\Users\\Admin\\AppData\\Local\\Temp\\app-3.20.0\\LetsPRO.exe" LetsPRO.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2240 LetsPRO.exe 2240 LetsPRO.exe - Suspicious behavior: LoadsDriver 2 IoCs
pid Process 660 Process not Found 660 Process not Found - Suspicious use of AdjustPrivilegeToken 30 IoCs
description pid Process Token: SeDebugPrivilege 2240 LetsPRO.exe Token: SeAuditPrivilege 4368 svchost.exe Token: SeSecurityPrivilege 4368 svchost.exe Token: SeLoadDriverPrivilege 4652 tapinstall.exe Token: SeRestorePrivilege 3132 DrvInst.exe Token: SeBackupPrivilege 3132 DrvInst.exe Token: SeLoadDriverPrivilege 3132 DrvInst.exe Token: SeLoadDriverPrivilege 3132 DrvInst.exe Token: SeLoadDriverPrivilege 3132 DrvInst.exe Token: SeIncreaseQuotaPrivilege 2240 LetsPRO.exe Token: SeSecurityPrivilege 2240 LetsPRO.exe Token: SeTakeOwnershipPrivilege 2240 LetsPRO.exe Token: SeLoadDriverPrivilege 2240 LetsPRO.exe Token: SeSystemProfilePrivilege 2240 LetsPRO.exe Token: SeSystemtimePrivilege 2240 LetsPRO.exe Token: SeProfSingleProcessPrivilege 2240 LetsPRO.exe Token: SeIncBasePriorityPrivilege 2240 LetsPRO.exe Token: SeCreatePagefilePrivilege 2240 LetsPRO.exe Token: SeBackupPrivilege 2240 LetsPRO.exe Token: SeRestorePrivilege 2240 LetsPRO.exe Token: SeShutdownPrivilege 2240 LetsPRO.exe Token: SeDebugPrivilege 2240 LetsPRO.exe Token: SeSystemEnvironmentPrivilege 2240 LetsPRO.exe Token: SeRemoteShutdownPrivilege 2240 LetsPRO.exe Token: SeUndockPrivilege 2240 LetsPRO.exe Token: SeManageVolumePrivilege 2240 LetsPRO.exe Token: 33 2240 LetsPRO.exe Token: 34 2240 LetsPRO.exe Token: 35 2240 LetsPRO.exe Token: 36 2240 LetsPRO.exe - Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 2240 LetsPRO.exe 2240 LetsPRO.exe 2240 LetsPRO.exe 2240 LetsPRO.exe 2240 LetsPRO.exe 2240 LetsPRO.exe 2240 LetsPRO.exe - Suspicious use of SendNotifyMessage 7 IoCs
pid Process 2240 LetsPRO.exe 2240 LetsPRO.exe 2240 LetsPRO.exe 2240 LetsPRO.exe 2240 LetsPRO.exe 2240 LetsPRO.exe 2240 LetsPRO.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 696 wrote to memory of 2240 696 LetsPRO.exe 85 PID 2240 wrote to memory of 3784 2240 LetsPRO.exe 89 PID 3784 wrote to memory of 4652 3784 cmd.exe 91 PID 4368 wrote to memory of 3056 4368 svchost.exe 93 PID 4368 wrote to memory of 3132 4368 svchost.exe 94 PID 2240 wrote to memory of 896 2240 LetsPRO.exe 103 PID 896 wrote to memory of 2932 896 cmd.exe 106 PID 2240 wrote to memory of 2236 2240 LetsPRO.exe 111 PID 2236 wrote to memory of 3428 2236 cmd.exe 113 PID 2240 wrote to memory of 1720 2240 LetsPRO.exe 115 PID 1720 wrote to memory of 3172 1720 cmd.exe 117
Processes
-
C:\Users\Admin\AppData\Local\Temp\LetsPRO.exe"C:\Users\Admin\AppData\Local\Temp\LetsPRO.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:696 -
C:\Users\Admin\AppData\Local\Temp\app-3.20.0\LetsPRO.exe"C:\Users\Admin\AppData\Local\Temp\app-3.20.0\LetsPRO.exe"2⤵
- Unexpected DNS network traffic destination
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2240 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\driver\tapinstall.exe" install "C:\Users\Admin\AppData\Local\Temp\driver\oemVista.inf" tap0901"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3784 -
C:\Users\Admin\AppData\Local\Temp\driver\tapinstall.exe"C:\Users\Admin\AppData\Local\Temp\driver\tapinstall.exe" install "C:\Users\Admin\AppData\Local\Temp\driver\oemVista.inf" tap09014⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:4652
-
-
-
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ipconfig /all3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:896 -
C:\Windows\SysWOW64\ipconfig.exeipconfig /all4⤵
- System Location Discovery: System Language Discovery
- Gathers network information
PID:2932
-
-
-
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C route print3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236 -
C:\Windows\SysWOW64\ROUTE.EXEroute print4⤵
- System Location Discovery: System Language Discovery
PID:3428
-
-
-
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C arp -a3⤵
- Network Service Discovery
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\Windows\SysWOW64\ARP.EXEarp -a4⤵
- Network Service Discovery
- System Location Discovery: System Language Discovery
PID:3172
-
-
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DcomLaunch -p -s DeviceInstall1⤵
- Drops file in Windows directory
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4368 -
C:\Windows\system32\DrvInst.exeDrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{d2e4af68-a473-994a-b279-d3c33bee39af}\oemvista.inf" "9" "4d14a44ff" "0000000000000148" "WinSta0\Default" "0000000000000160" "208" "c:\users\admin\appdata\local\temp\driver"2⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Checks SCSI registry key(s)
- Modifies data under HKEY_USERS
PID:3056
-
-
C:\Windows\system32\DrvInst.exeDrvInst.exe "2" "211" "ROOT\NET\0000" "C:\Windows\INF\oem3.inf" "oem3.inf:3beb73aff103cc24:tap0901.ndi:9.24.6.601:tap0901," "4d14a44ff" "0000000000000148"2⤵
- Drops file in Drivers directory
- Drops file in Windows directory
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:3132
-
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman1⤵
- Modifies data under HKEY_USERS
PID:4328
-
C:\Users\Admin\AppData\Local\Temp\app-3.20.0\LetsPRO.exe"C:\Users\Admin\AppData\Local\Temp\app-3.20.0\LetsPRO.exe" /silent1⤵
- System Location Discovery: System Language Discovery
PID:4808
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p1⤵PID:4504
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0511edjt.0r3.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\app-3.20.0\LetsPRO.INI
- Size 1KB
- SHA256 de5e478326ef40549c2b9dee246f8b8b602b488c9e48b5daaefe9f9f431b5b71
- MD5 85d93f64554a7fad5b6bd21919566e40
- SHA1 d2308ae5696a20175dbcd1749b06dc78f33b0ffa
- SHA512 1508ca772e16df264b73f2e140f4057f7a42981cd22989dd7b24910d016b71f59a97de9d6ce286f09984745d73c6d6e88e4c77f56e7c3e93f20eabaa59287446
- TLSH T17631335B46702B3194532107191FEBE3B32469AC226B54B1347C8B843703D29D33BEE9
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\{D2E4A~1\tap0901.sys
- Size 38KB
- SHA256 589c5667b1602837205da8ea8e92fe13f8c36048b293df931c99b39641052253
- MD5 c10ccdec5d7af458e726a51bb3cdc732
- SHA1 0553aab8c2106abb4120353360d747b0a2b4c94f
- SHA512 7437c12ae5b31e389de3053a55996e7a0d30689c6e0d10bde28f1fbf55cee42e65aa441b7b82448334e725c0899384dee2645ce5c311f3a3cfc68e42ad046981
- SSDEEP 768:XtCuL1O/+AphG3F9NlXt5oZhDzbV104mmuiExsFwQvYp33U35:XdCoTxk1lmmjExsFNvYtk
- TLSH T1BA037E91A7A81896E4AA947483E7DF67FBB8B1431310DBDF0364E6591F23BD41237328
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\{d2e4af68-a473-994a-b279-d3c33bee39af}\oemvista.inf
- Size 7KB
- SHA256 150ef8eb07532146f833dc020c02238161043260b8a565c3cfcb2365bad980d9
- MD5 26009f092ba352c1a64322268b47e0e3
- SHA1 e1b2220cd8dcaef6f7411a527705bd90a5922099
- SHA512 c18111982ca233a7fc5d1e893f9bd8a3ed739756a47651e0638debb0704066af6b25942c7961cdeedf953a206eb159fe50e0e10055c40b68eb0d22f6064bb363
- SSDEEP 192:wr8tW9yCTi3x4vlQd22bjR+iAUC7bMP+io3DcNSj6jvKFkPs7EQTXvt1Ld4Z:LWlGNdkkzo3DcNSj6jvKFkPs7EQTXvtk
- TLSH T17EF150641C83EE3A31FEE58407565EC7E25611823A172800355CFC549BBDD9FE73C92A
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\DriverStore\Temp\{46e2364f-965e-de45-b716-c957819913c6}\SET531D.tmp
- Size 10KB
- SHA256 cc74cdb88c198eb00aef4caa20bf1fda9256917713a916e6b94435cd4dcb7f7b
- MD5 f73ac62e8df97faf3fc8d83e7f71bf3f
- SHA1 619a6e8f7a9803a4c71f73060649903606beaf4e
- SHA512 f81f5757e0e449ad66a632299bcbe268ed02df61333a304dccafb76b2ad26baf1a09e7f837762ee4780afb47d90a09bf07cb5b8b519c6fb231b54fa4fbe17ffe
- SSDEEP 192:JDVLGVDFfap5UEwQl/WGhYCt17vJ4qnaj6jQc:7GCpzlnh3t1x4l2jn
- TLSH T17F22F7A289AC44C3E8A3AC3013E8FC977D3D67CB1C50455925AEF6291EA73C5F31526D
- MD5 SHA1 SHA512 SSDEEP TLSH