betabot | 705662ead94a35c0ed94a959c96de51bef2fbe996dda6569cd90cfc65194fda3

Windows Service

T1543.003

Processes:

explorer.exe

description	ioc	process
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
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

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:

explorer.exeFE84.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe\Debugger = "zotbe.exe"	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\g53511y5iwa9y.exe	FE84.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\g53511y5iwa9y.exe\DisableExceptionChainValidation	FE84.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.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
Deletes itself 1 IoCs

Processes:

pid process

3392
Executes dropped EXE 1 IoCs

Processes:

FE84.exe

pid process

1964 FE84.exe

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

pid	process
3392

pid	process
1964	FE84.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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Java Updater = "C:\\ProgramData\\Java Updater\\g53511y5iwa9y.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java Updater = "\"C:\\ProgramData\\Java Updater\\g53511y5iwa9y.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

FE84.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA FE84.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

FE84.exeexplorer.exe

pid process

1964 FE84.exe
2332 explorer.exe
2332 explorer.exe
2332 explorer.exe
2332 explorer.exe
2332 explorer.exe
2332 explorer.exe
2332 explorer.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4944 2332 WerFault.exe explorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	FE84.exe

pid	process
1964	FE84.exe
2332	explorer.exe
2332	explorer.exe
2332	explorer.exe
2332	explorer.exe
2332	explorer.exe
2332	explorer.exe
2332	explorer.exe

pid	pid_target	process	target process
4944	2332	WerFault.exe	explorer.exe

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:

bb77ec808a0d3dca791c2cc72d2020af.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bb77ec808a0d3dca791c2cc72d2020af.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bb77ec808a0d3dca791c2cc72d2020af.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bb77ec808a0d3dca791c2cc72d2020af.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:

explorer.exeFE84.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	FE84.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	FE84.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\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-1-5-21-996941297-2279405024-2328152752-1000\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-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

bb77ec808a0d3dca791c2cc72d2020af.exe

pid	process
436	bb77ec808a0d3dca791c2cc72d2020af.exe
436	bb77ec808a0d3dca791c2cc72d2020af.exe
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
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3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
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3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392
3392

Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

bb77ec808a0d3dca791c2cc72d2020af.exeFE84.exe

pid process

436 bb77ec808a0d3dca791c2cc72d2020af.exe
1964 FE84.exe
1964 FE84.exe

Suspicious use of AdjustPrivilegeToken 30 IoCs

Processes:

FE84.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	1964	FE84.exe
Token: SeRestorePrivilege	1964	FE84.exe
Token: SeBackupPrivilege	1964	FE84.exe
Token: SeLoadDriverPrivilege	1964	FE84.exe
Token: SeCreatePagefilePrivilege	1964	FE84.exe
Token: SeShutdownPrivilege	1964	FE84.exe
Token: SeTakeOwnershipPrivilege	1964	FE84.exe
Token: SeChangeNotifyPrivilege	1964	FE84.exe
Token: SeCreateTokenPrivilege	1964	FE84.exe
Token: SeMachineAccountPrivilege	1964	FE84.exe
Token: SeSecurityPrivilege	1964	FE84.exe
Token: SeAssignPrimaryTokenPrivilege	1964	FE84.exe
Token: SeCreateGlobalPrivilege	1964	FE84.exe
Token: 33	1964	FE84.exe
Token: SeDebugPrivilege	2332	explorer.exe
Token: SeRestorePrivilege	2332	explorer.exe
Token: SeBackupPrivilege	2332	explorer.exe
Token: SeLoadDriverPrivilege	2332	explorer.exe
Token: SeCreatePagefilePrivilege	2332	explorer.exe
Token: SeShutdownPrivilege	2332	explorer.exe
Token: SeTakeOwnershipPrivilege	2332	explorer.exe
Token: SeChangeNotifyPrivilege	2332	explorer.exe
Token: SeCreateTokenPrivilege	2332	explorer.exe
Token: SeMachineAccountPrivilege	2332	explorer.exe
Token: SeSecurityPrivilege	2332	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	2332	explorer.exe
Token: SeCreateGlobalPrivilege	2332	explorer.exe
Token: 33	2332	explorer.exe
Token: SeShutdownPrivilege	3392
Token: SeCreatePagefilePrivilege	3392

Suspicious use of UnmapMainImage 1 IoCs

Processes:

pid process

3392

pid	process
3392

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

FE84.exe

description	pid	process	target process
PID 3392 wrote to memory of 1964	3392		FE84.exe
PID 3392 wrote to memory of 1964	3392		FE84.exe
PID 3392 wrote to memory of 1964	3392		FE84.exe
PID 1964 wrote to memory of 2332	1964	FE84.exe	explorer.exe
PID 1964 wrote to memory of 2332	1964	FE84.exe	explorer.exe
PID 1964 wrote to memory of 2332	1964	FE84.exe	explorer.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\bb77ec808a0d3dca791c2cc72d2020af.exe
"C:\Users\Admin\AppData\Local\Temp\bb77ec808a0d3dca791c2cc72d2020af.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:436

C:\Users\Admin\AppData\Local\Temp\FE84.exe
C:\Users\Admin\AppData\Local\Temp\FE84.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:1964

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:2332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 1144
3⤵
- Program crash
PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2332 -ip 2332
1⤵
PID:3216

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

5

System Information Discovery

5

Peripheral Device Discovery