betabot | 12eb79f7104c4b5f780f5fc86145924fb81f3bc043c782328ad69c660a287670

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:

A5C5.exeexplorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\1uagmu71.exe	A5C5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\1uagmu71.exe\DisableExceptionChainValidation	A5C5.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 = "uipjpxe.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

3296
Executes dropped EXE 4 IoCs

Processes:

A5C5.exeAA0C.exeWindowsUpdater.exeicbutic

pid process

728 A5C5.exe
4884 AA0C.exe
3708 WindowsUpdater.exe
2220 icbutic
Loads dropped DLL 2 IoCs

Processes:

WindowsUpdater.exe

pid process

3708 WindowsUpdater.exe
3708 WindowsUpdater.exe

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

pid	process
3296

pid	process
728	A5C5.exe
4884	AA0C.exe
3708	WindowsUpdater.exe
2220	icbutic

pid	process
3708	WindowsUpdater.exe
3708	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-1-5-21-4286256601-2211319207-2237621277-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Java Updater = "C:\\ProgramData\\Java Updater\\1uagmu71.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000\Software\Microsoft\Windows\CurrentVersion\Run\Java Updater = "\"C:\\ProgramData\\Java Updater\\1uagmu71.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

A5C5.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA A5C5.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

A5C5.exeexplorer.exe

pid process

728 A5C5.exe
4524 explorer.exe
4524 explorer.exe
4524 explorer.exe
4524 explorer.exe
4524 explorer.exe
4524 explorer.exe
4524 explorer.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 3 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exe

pid pid_target process target process

4892 4232 WerFault.exe toolspab4.exe
4388 4524 WerFault.exe explorer.exe
1616 2220 WerFault.exe icbutic

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	A5C5.exe

pid	process
728	A5C5.exe
4524	explorer.exe
4524	explorer.exe
4524	explorer.exe
4524	explorer.exe
4524	explorer.exe
4524	explorer.exe
4524	explorer.exe

pid	pid_target	process	target process
4892	4232	WerFault.exe	toolspab4.exe
4388	4524	WerFault.exe	explorer.exe
1616	2220	WerFault.exe	icbutic

NSIS installer 8 IoCs

installer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\AA0C.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\AA0C.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:

icbutictoolspab4.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	icbutic
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab4.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab4.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	icbutic
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	icbutic

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:

A5C5.exeexplorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	A5C5.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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	A5C5.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-1-5-21-4286256601-2211319207-2237621277-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000\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-1-5-21-4286256601-2211319207-2237621277-1000\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-1-5-21-4286256601-2211319207-2237621277-1000\Software\Microsoft\Internet Explorer\Main explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

toolspab4.exe

pid	process
4232	toolspab4.exe
4232	toolspab4.exe
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296
3296

Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

toolspab4.exeA5C5.exeicbutic

pid process

4232 toolspab4.exe
728 A5C5.exe
728 A5C5.exe
2220 icbutic

Suspicious use of AdjustPrivilegeToken 38 IoCs

Processes:

A5C5.exeexplorer.exe

description	pid	process
Token: SeShutdownPrivilege	3296
Token: SeCreatePagefilePrivilege	3296
Token: SeShutdownPrivilege	3296
Token: SeCreatePagefilePrivilege	3296
Token: SeShutdownPrivilege	3296
Token: SeCreatePagefilePrivilege	3296
Token: SeDebugPrivilege	728	A5C5.exe
Token: SeRestorePrivilege	728	A5C5.exe
Token: SeBackupPrivilege	728	A5C5.exe
Token: SeLoadDriverPrivilege	728	A5C5.exe
Token: SeCreatePagefilePrivilege	728	A5C5.exe
Token: SeShutdownPrivilege	728	A5C5.exe
Token: SeTakeOwnershipPrivilege	728	A5C5.exe
Token: SeChangeNotifyPrivilege	728	A5C5.exe
Token: SeCreateTokenPrivilege	728	A5C5.exe
Token: SeMachineAccountPrivilege	728	A5C5.exe
Token: SeSecurityPrivilege	728	A5C5.exe
Token: SeAssignPrimaryTokenPrivilege	728	A5C5.exe
Token: SeCreateGlobalPrivilege	728	A5C5.exe
Token: 33	728	A5C5.exe
Token: SeDebugPrivilege	4524	explorer.exe
Token: SeRestorePrivilege	4524	explorer.exe
Token: SeBackupPrivilege	4524	explorer.exe
Token: SeLoadDriverPrivilege	4524	explorer.exe
Token: SeCreatePagefilePrivilege	4524	explorer.exe
Token: SeShutdownPrivilege	4524	explorer.exe
Token: SeTakeOwnershipPrivilege	4524	explorer.exe
Token: SeChangeNotifyPrivilege	4524	explorer.exe
Token: SeCreateTokenPrivilege	4524	explorer.exe
Token: SeMachineAccountPrivilege	4524	explorer.exe
Token: SeSecurityPrivilege	4524	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	4524	explorer.exe
Token: SeCreateGlobalPrivilege	4524	explorer.exe
Token: 33	4524	explorer.exe
Token: SeShutdownPrivilege	3296
Token: SeCreatePagefilePrivilege	3296
Token: SeShutdownPrivilege	3296
Token: SeCreatePagefilePrivilege	3296

Suspicious use of UnmapMainImage 1 IoCs

Processes:

pid process

3296

pid	process
3296

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

A5C5.exeAA0C.exe

description	pid	process	target process
PID 3296 wrote to memory of 728	3296		A5C5.exe
PID 3296 wrote to memory of 728	3296		A5C5.exe
PID 3296 wrote to memory of 728	3296		A5C5.exe
PID 728 wrote to memory of 4524	728	A5C5.exe	explorer.exe
PID 728 wrote to memory of 4524	728	A5C5.exe	explorer.exe
PID 728 wrote to memory of 4524	728	A5C5.exe	explorer.exe
PID 3296 wrote to memory of 4884	3296		AA0C.exe
PID 3296 wrote to memory of 4884	3296		AA0C.exe
PID 3296 wrote to memory of 4884	3296		AA0C.exe
PID 4884 wrote to memory of 3708	4884	AA0C.exe	WindowsUpdater.exe
PID 4884 wrote to memory of 3708	4884	AA0C.exe	WindowsUpdater.exe
PID 4884 wrote to memory of 3708	4884	AA0C.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\toolspab4.exe
"C:\Users\Admin\AppData\Local\Temp\toolspab4.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4232 -s 500
  2⤵
  - Program crash
  PID:4892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4232 -ip 4232
1⤵
PID:2200

C:\Users\Admin\AppData\Local\Temp\A5C5.exe
C:\Users\Admin\AppData\Local\Temp\A5C5.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:728
- 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:4524
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 1152
    3⤵
    - Program crash
    PID:4388

C:\Users\Admin\AppData\Local\Temp\AA0C.exe
C:\Users\Admin\AppData\Local\Temp\AA0C.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:3708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4524 -ip 4524
1⤵
PID:3832

C:\Users\Admin\AppData\Roaming\icbutic
C:\Users\Admin\AppData\Roaming\icbutic
1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2220 -s 500
  2⤵
  - Program crash
  PID:1616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2220 -ip 2220
1⤵
PID:1460

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