betabot | 792da83612534b65156bbeb82f175987cd969bee28f7c685623048b75a1e0c98

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.exeA70D.exe

description	ioc	process
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 = "xomvbm.exe"	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\79uum91ow.exe	A70D.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\79uum91ow.exe\DisableExceptionChainValidation	A70D.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:

AD58.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation AD58.exe
Deletes itself 1 IoCs

Processes:

pid process

3520
Executes dropped EXE 3 IoCs

Processes:

A70D.exeAD58.exeWindowsUpdater.exe

pid process

2276 A70D.exe
1996 AD58.exe
404 WindowsUpdater.exe
Loads dropped DLL 2 IoCs

Processes:

WindowsUpdater.exe

pid process

404 WindowsUpdater.exe
404 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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	AD58.exe

pid	process
3520

pid	process
2276	A70D.exe
1996	AD58.exe
404	WindowsUpdater.exe

pid	process
404	WindowsUpdater.exe
404	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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Java Updater = "C:\\ProgramData\\Java Updater\\79uum91ow.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java Updater = "\"C:\\ProgramData\\Java Updater\\79uum91ow.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

A70D.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA A70D.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

A70D.exeexplorer.exe

pid process

2276 A70D.exe
2540 explorer.exe
2540 explorer.exe
2540 explorer.exe
2540 explorer.exe
2540 explorer.exe
2540 explorer.exe
2540 explorer.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

9c8cdcad2c02527baabc6021db827860.exe

description pid process target process

PID 3016 set thread context of 3468 3016 9c8cdcad2c02527baabc6021db827860.exe 9c8cdcad2c02527baabc6021db827860.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1644 3468 WerFault.exe 9c8cdcad2c02527baabc6021db827860.exe
4396 2540 WerFault.exe explorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	A70D.exe

pid	process
2276	A70D.exe
2540	explorer.exe
2540	explorer.exe
2540	explorer.exe
2540	explorer.exe
2540	explorer.exe
2540	explorer.exe
2540	explorer.exe

description	pid	process	target process
PID 3016 set thread context of 3468	3016	9c8cdcad2c02527baabc6021db827860.exe	9c8cdcad2c02527baabc6021db827860.exe

pid	pid_target	process	target process
1644	3468	WerFault.exe	9c8cdcad2c02527baabc6021db827860.exe
4396	2540	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:

9c8cdcad2c02527baabc6021db827860.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	9c8cdcad2c02527baabc6021db827860.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	9c8cdcad2c02527baabc6021db827860.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	9c8cdcad2c02527baabc6021db827860.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.exeA70D.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	A70D.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	A70D.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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\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-1-5-21-1168293393-3419776239-306423207-1000\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-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Internet Explorer\Main explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

9c8cdcad2c02527baabc6021db827860.exe

pid	process
3468	9c8cdcad2c02527baabc6021db827860.exe
3468	9c8cdcad2c02527baabc6021db827860.exe
3520
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3520
3520
3520

Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

9c8cdcad2c02527baabc6021db827860.exeA70D.exe

pid process

3468 9c8cdcad2c02527baabc6021db827860.exe
2276 A70D.exe
2276 A70D.exe

Suspicious use of AdjustPrivilegeToken 32 IoCs

Processes:

A70D.exeexplorer.exe

description	pid	process
Token: SeShutdownPrivilege	3520
Token: SeCreatePagefilePrivilege	3520
Token: SeDebugPrivilege	2276	A70D.exe
Token: SeRestorePrivilege	2276	A70D.exe
Token: SeBackupPrivilege	2276	A70D.exe
Token: SeLoadDriverPrivilege	2276	A70D.exe
Token: SeCreatePagefilePrivilege	2276	A70D.exe
Token: SeShutdownPrivilege	2276	A70D.exe
Token: SeTakeOwnershipPrivilege	2276	A70D.exe
Token: SeChangeNotifyPrivilege	2276	A70D.exe
Token: SeCreateTokenPrivilege	2276	A70D.exe
Token: SeMachineAccountPrivilege	2276	A70D.exe
Token: SeSecurityPrivilege	2276	A70D.exe
Token: SeAssignPrimaryTokenPrivilege	2276	A70D.exe
Token: SeCreateGlobalPrivilege	2276	A70D.exe
Token: 33	2276	A70D.exe
Token: SeDebugPrivilege	2540	explorer.exe
Token: SeRestorePrivilege	2540	explorer.exe
Token: SeBackupPrivilege	2540	explorer.exe
Token: SeLoadDriverPrivilege	2540	explorer.exe
Token: SeCreatePagefilePrivilege	2540	explorer.exe
Token: SeShutdownPrivilege	2540	explorer.exe
Token: SeTakeOwnershipPrivilege	2540	explorer.exe
Token: SeChangeNotifyPrivilege	2540	explorer.exe
Token: SeCreateTokenPrivilege	2540	explorer.exe
Token: SeMachineAccountPrivilege	2540	explorer.exe
Token: SeSecurityPrivilege	2540	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	2540	explorer.exe
Token: SeCreateGlobalPrivilege	2540	explorer.exe
Token: 33	2540	explorer.exe
Token: SeShutdownPrivilege	3520
Token: SeCreatePagefilePrivilege	3520

Suspicious use of UnmapMainImage 1 IoCs

Processes:

pid process

3520

pid	process
3520

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

9c8cdcad2c02527baabc6021db827860.exeA70D.exeAD58.exe

description	pid	process	target process
PID 3016 wrote to memory of 3468	3016	9c8cdcad2c02527baabc6021db827860.exe	9c8cdcad2c02527baabc6021db827860.exe
PID 3016 wrote to memory of 3468	3016	9c8cdcad2c02527baabc6021db827860.exe	9c8cdcad2c02527baabc6021db827860.exe
PID 3016 wrote to memory of 3468	3016	9c8cdcad2c02527baabc6021db827860.exe	9c8cdcad2c02527baabc6021db827860.exe
PID 3016 wrote to memory of 3468	3016	9c8cdcad2c02527baabc6021db827860.exe	9c8cdcad2c02527baabc6021db827860.exe
PID 3016 wrote to memory of 3468	3016	9c8cdcad2c02527baabc6021db827860.exe	9c8cdcad2c02527baabc6021db827860.exe
PID 3016 wrote to memory of 3468	3016	9c8cdcad2c02527baabc6021db827860.exe	9c8cdcad2c02527baabc6021db827860.exe
PID 3520 wrote to memory of 2276	3520		A70D.exe
PID 3520 wrote to memory of 2276	3520		A70D.exe
PID 3520 wrote to memory of 2276	3520		A70D.exe
PID 2276 wrote to memory of 2540	2276	A70D.exe	explorer.exe
PID 2276 wrote to memory of 2540	2276	A70D.exe	explorer.exe
PID 2276 wrote to memory of 2540	2276	A70D.exe	explorer.exe
PID 3520 wrote to memory of 1996	3520		AD58.exe
PID 3520 wrote to memory of 1996	3520		AD58.exe
PID 3520 wrote to memory of 1996	3520		AD58.exe
PID 1996 wrote to memory of 404	1996	AD58.exe	WindowsUpdater.exe
PID 1996 wrote to memory of 404	1996	AD58.exe	WindowsUpdater.exe
PID 1996 wrote to memory of 404	1996	AD58.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\9c8cdcad2c02527baabc6021db827860.exe
"C:\Users\Admin\AppData\Local\Temp\9c8cdcad2c02527baabc6021db827860.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\9c8cdcad2c02527baabc6021db827860.exe
  "C:\Users\Admin\AppData\Local\Temp\9c8cdcad2c02527baabc6021db827860.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:3468
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3468 -s 328
    3⤵
    - Program crash
    PID:1644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3468 -ip 3468
1⤵
PID:4960

C:\Users\Admin\AppData\Local\Temp\A70D.exe
C:\Users\Admin\AppData\Local\Temp\A70D.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:2276
- 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:2540
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2540 -s 1128
    3⤵
    - Program crash
    PID:4396

C:\Users\Admin\AppData\Local\Temp\AD58.exe
C:\Users\Admin\AppData\Local\Temp\AD58.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2540 -ip 2540
1⤵
PID:4652

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