betabot | ef743dcfbc3b85460416d9708cd43452354c148b375ef94075aaa79207c6467b

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:

2AB.exeexplorer.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\s9me1c1c1ksa.exe\DisableExceptionChainValidation	2AB.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 = "cxgqtream.exe"	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\s9me1c1c1ksa.exe	2AB.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

3188
Executes dropped EXE 5 IoCs

Processes:

2AB.exe8F5.exeWindowsUpdater.execejvhajcejvhaj

pid process

128 2AB.exe
576 8F5.exe
5060 WindowsUpdater.exe
3804 cejvhaj
2256 cejvhaj
Loads dropped DLL 2 IoCs

Processes:

WindowsUpdater.exe

pid process

5060 WindowsUpdater.exe
5060 WindowsUpdater.exe

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

pid	process
3188

pid	process
128	2AB.exe
576	8F5.exe
5060	WindowsUpdater.exe
3804	cejvhaj
2256	cejvhaj

pid	process
5060	WindowsUpdater.exe
5060	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-1-5-21-894477223-740240645-3565689000-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Java Updater = "C:\\ProgramData\\Java Updater\\s9me1c1c1ksa.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-894477223-740240645-3565689000-1000\Software\Microsoft\Windows\CurrentVersion\Run\Java Updater = "\"C:\\ProgramData\\Java Updater\\s9me1c1c1ksa.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

2AB.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 2AB.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

2AB.exeexplorer.exe

pid process

128 2AB.exe
2104 explorer.exe
2104 explorer.exe
2104 explorer.exe
2104 explorer.exe
2104 explorer.exe
2104 explorer.exe
2104 explorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2AB.exe

pid	process
128	2AB.exe
2104	explorer.exe
2104	explorer.exe
2104	explorer.exe
2104	explorer.exe
2104	explorer.exe
2104	explorer.exe
2104	explorer.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

toolspab2.execejvhaj

description	pid	process	target process
PID 2452 set thread context of 2680	2452	toolspab2.exe	toolspab2.exe
PID 3804 set thread context of 2256	3804	cejvhaj	cejvhaj

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

3112 2104 WerFault.exe explorer.exe

pid	pid_target	process	target process
3112	2104	WerFault.exe	explorer.exe

NSIS installer 8 IoCs

installer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\8F5.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\8F5.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 6 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

toolspab2.execejvhaj

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab2.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cejvhaj
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cejvhaj
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cejvhaj
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab2.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:

2AB.exeexplorer.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2AB.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2AB.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-1-5-21-894477223-740240645-3565689000-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-894477223-740240645-3565689000-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-894477223-740240645-3565689000-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-894477223-740240645-3565689000-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\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-1-5-21-894477223-740240645-3565689000-1000\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-1-5-21-894477223-740240645-3565689000-1000\Software\Microsoft\Internet Explorer\Main explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-894477223-740240645-3565689000-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

toolspab2.exe

pid	process
2680	toolspab2.exe
2680	toolspab2.exe
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188
3188

Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

toolspab2.exe2AB.execejvhaj

pid process

2680 toolspab2.exe
128 2AB.exe
128 2AB.exe
2256 cejvhaj

Suspicious use of AdjustPrivilegeToken 32 IoCs

Processes:

2AB.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	128	2AB.exe
Token: SeRestorePrivilege	128	2AB.exe
Token: SeBackupPrivilege	128	2AB.exe
Token: SeLoadDriverPrivilege	128	2AB.exe
Token: SeCreatePagefilePrivilege	128	2AB.exe
Token: SeShutdownPrivilege	128	2AB.exe
Token: SeTakeOwnershipPrivilege	128	2AB.exe
Token: SeChangeNotifyPrivilege	128	2AB.exe
Token: SeCreateTokenPrivilege	128	2AB.exe
Token: SeMachineAccountPrivilege	128	2AB.exe
Token: SeSecurityPrivilege	128	2AB.exe
Token: SeAssignPrimaryTokenPrivilege	128	2AB.exe
Token: SeCreateGlobalPrivilege	128	2AB.exe
Token: 33	128	2AB.exe
Token: SeDebugPrivilege	2104	explorer.exe
Token: SeRestorePrivilege	2104	explorer.exe
Token: SeBackupPrivilege	2104	explorer.exe
Token: SeLoadDriverPrivilege	2104	explorer.exe
Token: SeCreatePagefilePrivilege	2104	explorer.exe
Token: SeShutdownPrivilege	2104	explorer.exe
Token: SeTakeOwnershipPrivilege	2104	explorer.exe
Token: SeChangeNotifyPrivilege	2104	explorer.exe
Token: SeCreateTokenPrivilege	2104	explorer.exe
Token: SeMachineAccountPrivilege	2104	explorer.exe
Token: SeSecurityPrivilege	2104	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	2104	explorer.exe
Token: SeCreateGlobalPrivilege	2104	explorer.exe
Token: 33	2104	explorer.exe
Token: SeShutdownPrivilege	3188
Token: SeCreatePagefilePrivilege	3188
Token: SeShutdownPrivilege	3188
Token: SeCreatePagefilePrivilege	3188

Suspicious use of UnmapMainImage 1 IoCs

Processes:

pid process

3188

pid	process
3188

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

toolspab2.exe2AB.exe8F5.execejvhaj

description	pid	process	target process
PID 2452 wrote to memory of 2680	2452	toolspab2.exe	toolspab2.exe
PID 2452 wrote to memory of 2680	2452	toolspab2.exe	toolspab2.exe
PID 2452 wrote to memory of 2680	2452	toolspab2.exe	toolspab2.exe
PID 2452 wrote to memory of 2680	2452	toolspab2.exe	toolspab2.exe
PID 2452 wrote to memory of 2680	2452	toolspab2.exe	toolspab2.exe
PID 2452 wrote to memory of 2680	2452	toolspab2.exe	toolspab2.exe
PID 3188 wrote to memory of 128	3188		2AB.exe
PID 3188 wrote to memory of 128	3188		2AB.exe
PID 3188 wrote to memory of 128	3188		2AB.exe
PID 128 wrote to memory of 2104	128	2AB.exe	explorer.exe
PID 128 wrote to memory of 2104	128	2AB.exe	explorer.exe
PID 128 wrote to memory of 2104	128	2AB.exe	explorer.exe
PID 3188 wrote to memory of 576	3188		8F5.exe
PID 3188 wrote to memory of 576	3188		8F5.exe
PID 3188 wrote to memory of 576	3188		8F5.exe
PID 576 wrote to memory of 5060	576	8F5.exe	WindowsUpdater.exe
PID 576 wrote to memory of 5060	576	8F5.exe	WindowsUpdater.exe
PID 576 wrote to memory of 5060	576	8F5.exe	WindowsUpdater.exe
PID 3804 wrote to memory of 2256	3804	cejvhaj	cejvhaj
PID 3804 wrote to memory of 2256	3804	cejvhaj	cejvhaj
PID 3804 wrote to memory of 2256	3804	cejvhaj	cejvhaj
PID 3804 wrote to memory of 2256	3804	cejvhaj	cejvhaj
PID 3804 wrote to memory of 2256	3804	cejvhaj	cejvhaj
PID 3804 wrote to memory of 2256	3804	cejvhaj	cejvhaj

C:\Users\Admin\AppData\Local\Temp\toolspab2.exe
"C:\Users\Admin\AppData\Local\Temp\toolspab2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2452

C:\Users\Admin\AppData\Local\Temp\toolspab2.exe
"C:\Users\Admin\AppData\Local\Temp\toolspab2.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2680

C:\Users\Admin\AppData\Local\Temp\2AB.exe
C:\Users\Admin\AppData\Local\Temp\2AB.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:128

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:2104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 1156
3⤵
- Program crash
PID:3112

C:\Users\Admin\AppData\Local\Temp\8F5.exe
C:\Users\Admin\AppData\Local\Temp\8F5.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:576

C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
"C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2104 -ip 2104
1⤵
PID:2504

C:\Users\Admin\AppData\Roaming\cejvhaj
C:\Users\Admin\AppData\Roaming\cejvhaj
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3804

C:\Users\Admin\AppData\Roaming\cejvhaj
C:\Users\Admin\AppData\Roaming\cejvhaj
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery