betabot | 9a77f554fbc23a4d71cbb980b5dcdef80291fa70849430a929a1e1bb9cebc2dc

Windows Service

T1543.003

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\EnableFirewall = "0"	explorer.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	explorer.exe

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Sets file execution options in registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

BCD8.exeexplorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\u9qcc977m.exe	BCD8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\u9qcc977m.exe\DisableExceptionChainValidation	BCD8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe\Debugger = "mgusdi.exe"	explorer.exe

Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

explorer.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.exe
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

C574.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation C574.exe
Deletes itself 1 IoCs

Processes:

pid process

3560
Executes dropped EXE 3 IoCs

Processes:

BCD8.exeC574.exeWindowsUpdater.exe

pid process

1808 BCD8.exe
4204 C574.exe
5004 WindowsUpdater.exe
Loads dropped DLL 2 IoCs

Processes:

WindowsUpdater.exe

pid process

5004 WindowsUpdater.exe
5004 WindowsUpdater.exe

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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	C574.exe

pid	process
3560

pid	process
1808	BCD8.exe
4204	C574.exe
5004	WindowsUpdater.exe

pid	process
5004	WindowsUpdater.exe
5004	WindowsUpdater.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Java Updater = "C:\\ProgramData\\Java Updater\\u9qcc977m.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java Updater = "\"C:\\ProgramData\\Java Updater\\u9qcc977m.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

BCD8.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA BCD8.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

BCD8.exeexplorer.exe

pid process

1808 BCD8.exe
3648 explorer.exe
3648 explorer.exe
3648 explorer.exe
3648 explorer.exe
3648 explorer.exe
3648 explorer.exe
3648 explorer.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

232 3648 WerFault.exe explorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	BCD8.exe

pid	process
1808	BCD8.exe
3648	explorer.exe
3648	explorer.exe
3648	explorer.exe
3648	explorer.exe
3648	explorer.exe
3648	explorer.exe
3648	explorer.exe

pid	pid_target	process	target process
232	3648	WerFault.exe	explorer.exe

NSIS installer 8 IoCs

installer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\C574.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\C574.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe	nsis_installer_1
C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe	nsis_installer_1
C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe	nsis_installer_1
C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe	nsis_installer_2

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a_dump.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a_dump.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a_dump.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a_dump.exe

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

System Information Discovery

Processes:

BCD8.exeexplorer.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	BCD8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	BCD8.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

Processes:

explorer.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	explorer.exe

Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs

Modify Registry

Processes:

explorer.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3"	explorer.exe

Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs

Modify Registry

Processes:

explorer.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1"	explorer.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Main explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a_dump.exe

pid	process
2656	461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a_dump.exe
2656	461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a_dump.exe
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Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a_dump.exeBCD8.exe

pid process

2656 461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a_dump.exe
1808 BCD8.exe
1808 BCD8.exe

Suspicious use of AdjustPrivilegeToken 30 IoCs

Processes:

BCD8.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	1808	BCD8.exe
Token: SeRestorePrivilege	1808	BCD8.exe
Token: SeBackupPrivilege	1808	BCD8.exe
Token: SeLoadDriverPrivilege	1808	BCD8.exe
Token: SeCreatePagefilePrivilege	1808	BCD8.exe
Token: SeShutdownPrivilege	1808	BCD8.exe
Token: SeTakeOwnershipPrivilege	1808	BCD8.exe
Token: SeChangeNotifyPrivilege	1808	BCD8.exe
Token: SeCreateTokenPrivilege	1808	BCD8.exe
Token: SeMachineAccountPrivilege	1808	BCD8.exe
Token: SeSecurityPrivilege	1808	BCD8.exe
Token: SeAssignPrimaryTokenPrivilege	1808	BCD8.exe
Token: SeCreateGlobalPrivilege	1808	BCD8.exe
Token: 33	1808	BCD8.exe
Token: SeDebugPrivilege	3648	explorer.exe
Token: SeRestorePrivilege	3648	explorer.exe
Token: SeBackupPrivilege	3648	explorer.exe
Token: SeLoadDriverPrivilege	3648	explorer.exe
Token: SeCreatePagefilePrivilege	3648	explorer.exe
Token: SeShutdownPrivilege	3648	explorer.exe
Token: SeTakeOwnershipPrivilege	3648	explorer.exe
Token: SeChangeNotifyPrivilege	3648	explorer.exe
Token: SeCreateTokenPrivilege	3648	explorer.exe
Token: SeMachineAccountPrivilege	3648	explorer.exe
Token: SeSecurityPrivilege	3648	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	3648	explorer.exe
Token: SeCreateGlobalPrivilege	3648	explorer.exe
Token: 33	3648	explorer.exe
Token: SeShutdownPrivilege	3560
Token: SeCreatePagefilePrivilege	3560

Suspicious use of UnmapMainImage 1 IoCs

Processes:

pid process

3560

pid	process
3560

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

BCD8.exeC574.exe

description	pid	process	target process
PID 3560 wrote to memory of 1808	3560		BCD8.exe
PID 3560 wrote to memory of 1808	3560		BCD8.exe
PID 3560 wrote to memory of 1808	3560		BCD8.exe
PID 1808 wrote to memory of 3648	1808	BCD8.exe	explorer.exe
PID 1808 wrote to memory of 3648	1808	BCD8.exe	explorer.exe
PID 1808 wrote to memory of 3648	1808	BCD8.exe	explorer.exe
PID 3560 wrote to memory of 4204	3560		C574.exe
PID 3560 wrote to memory of 4204	3560		C574.exe
PID 3560 wrote to memory of 4204	3560		C574.exe
PID 4204 wrote to memory of 5004	4204	C574.exe	WindowsUpdater.exe
PID 4204 wrote to memory of 5004	4204	C574.exe	WindowsUpdater.exe
PID 4204 wrote to memory of 5004	4204	C574.exe	WindowsUpdater.exe

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.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a_dump.exe
"C:\Users\Admin\AppData\Local\Temp\461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a_dump.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2656

C:\Users\Admin\AppData\Local\Temp\BCD8.exe
C:\Users\Admin\AppData\Local\Temp\BCD8.exe
1⤵
- Sets file execution options in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1808

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
2⤵
- Modifies firewall policy service
- Sets file execution options in registry
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Enumerates system info in registry
- Modifies Internet Explorer Protected Mode
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
PID:3648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 1140
3⤵
- Program crash
PID:232

C:\Users\Admin\AppData\Local\Temp\C574.exe
C:\Users\Admin\AppData\Local\Temp\C574.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4204

C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
"C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:5004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3648 -ip 3648
1⤵
PID:2712

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

6

Credential Access

Discovery

Query Registry

6

System Information Discovery

7

Peripheral Device Discovery