d16dddc1e9ad69c5ef67afd93eb801c74ca5b95ec8b46741786c8c8ec47b1b1d

System Information Discovery

Processes:

SpySheriff.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	SpySheriff.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

SpySheriff.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Control Panel\International\Geo\Nation	SpySheriff.exe

Modifies system executable filetype association 2 TTPs 1 IoCs
persistence

Modify Registry
T1112

Change Default File Association
T1546.001

Processes:

SpySheriff.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command SpySheriff.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	SpySheriff.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

SpySheriff.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\SpySheriff = "C:\\Users\\Admin\\AppData\\Local\\Temp\\SpySheriff.exe"	SpySheriff.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

SpySheriff.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA SpySheriff.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	SpySheriff.exe

Checks processor information in registry 2 TTPs 29 IoCs

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

Query Registry

System Information Discovery

Processes:

SpySheriff.exe

description	ioc	process
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Identifier	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Update Signature	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Previous Update Signature	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Component Information	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Previous Update Signature	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Component Information	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Configuration Data	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	SpySheriff.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Status	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Update Status	SpySheriff.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Platform ID	SpySheriff.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Configuration Data	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform ID	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\VendorIdentifier	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\FeatureSet	SpySheriff.exe

Enumerates system info in registry 2 TTPs 64 IoCs

Query Registry

System Information Discovery

Processes:

SpySheriff.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoAdapterBusses\PCIBus	SpySheriff.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\1\Configuration Data	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BIOSReleaseDate	SpySheriff.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BaseBoardProduct	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoAdapterBusses\PCIBus	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BootArchitecture	SpySheriff.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral	SpySheriff.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\Configuration Data	SpySheriff.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\1	SpySheriff.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController	SpySheriff.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\KeyboardPeripheral\0	SpySheriff.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\0	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\1	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\1\Identifier	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\Component Information	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\1\Component Information	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\KeyboardPeripheral\0\Configuration Data	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\1\Component Information	SpySheriff.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\KeyboardPeripheral	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\ECFirmwareMinorRelease	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral\0\Identifier	SpySheriff.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\Component Information	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BIOSVersion	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral\0\Component Information	SpySheriff.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\KeyboardPeripheral\0\Component Information	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Capabilities	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral	SpySheriff.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BaseBoardManufacturer	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\PreferredProfile	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\1\Configuration Data	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Configuration Data	SpySheriff.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\KeyboardPeripheral\0	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\Configuration Data	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\1	SpySheriff.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\2	SpySheriff.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0\Component Information	SpySheriff.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\0\Identifier	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BaseBoardVersion	SpySheriff.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\2\Identifier	SpySheriff.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoAdapterBusses	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\ECFirmwareMajorRelease	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\0	SpySheriff.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	SpySheriff.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\0\Configuration Data	SpySheriff.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\KeyboardController\0	SpySheriff.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\2	SpySheriff.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

SpySheriff.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\SOFTWARE\Microsoft\Internet Explorer\Main	SpySheriff.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\SOFTWARE\Microsoft\Internet Explorer\Search	SpySheriff.exe

Modifies registry class 5 IoCs

Processes:

SpySheriff.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	SpySheriff.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	SpySheriff.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	SpySheriff.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C6D95F-329C-409a-81D7-C46C66EA7F33}\InprocServer32	SpySheriff.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	SpySheriff.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

SpySheriff.exe

pid process

1728 SpySheriff.exe

Suspicious use of FindShellTrayWindow 64 IoCs

Processes:

SpySheriff.exe

pid	process
1728	SpySheriff.exe
1728	SpySheriff.exe
1728	SpySheriff.exe
1728	SpySheriff.exe
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1728	SpySheriff.exe
1728	SpySheriff.exe
1728	SpySheriff.exe
1728	SpySheriff.exe

Suspicious use of SendNotifyMessage 64 IoCs

Processes:

SpySheriff.exe

pid	process
1728	SpySheriff.exe
1728	SpySheriff.exe
1728	SpySheriff.exe
1728	SpySheriff.exe
1728	SpySheriff.exe
1728	SpySheriff.exe
1728	SpySheriff.exe
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1728	SpySheriff.exe

C:\Users\Admin\AppData\Local\Temp\SpySheriff.exe
"C:\Users\Admin\AppData\Local\Temp\SpySheriff.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Modifies system executable filetype association
- Adds Run key to start application
- Checks whether UAC is enabled
- Checks processor information in registry
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1728

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

3

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

5

System Information Discovery

6

Lateral Movement

Collection

Data from Local System