betabot | d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf

Windows Service

T1543.003

Processes:

explorer.exe

description	ioc	process
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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	explorer.exe

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Looks for VMWare services registry key. 1 TTPs 1 IoCs
evasion

Virtualization/Sandbox Evasion
T1497

Processes:

WindowsUpdater.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\VMware WindowsUpdater.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\VMware	WindowsUpdater.exe

Sets file execution options in registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

D155.exeexplorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\39g5597qw1.exe	D155.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\39g5597qw1.exe\DisableExceptionChainValidation	D155.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 = "puq.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:

DBE5.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation DBE5.exe
Deletes itself 1 IoCs

Processes:

pid process

3500
Executes dropped EXE 3 IoCs

Processes:

D155.exeDBE5.exeWindowsUpdater.exe

pid process

2572 D155.exe
4420 DBE5.exe
5044 WindowsUpdater.exe
Loads dropped DLL 2 IoCs

Processes:

WindowsUpdater.exe

pid process

5044 WindowsUpdater.exe
5044 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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	DBE5.exe

pid	process
3500

pid	process
5044	WindowsUpdater.exe
5044	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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Java Updater = "C:\\ProgramData\\Java Updater\\39g5597qw1.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java Updater = "\"C:\\ProgramData\\Java Updater\\39g5597qw1.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

Processes:

D155.exeWindowsUpdater.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	D155.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	WindowsUpdater.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

WindowsUpdater.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	WindowsUpdater.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	WindowsUpdater.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 13 IoCs

Processes:

D155.exeexplorer.exeWindowsUpdater.exe

pid	process
2572	D155.exe
2896	explorer.exe
2896	explorer.exe
2896	explorer.exe
2896	explorer.exe
2896	explorer.exe
2896	explorer.exe
5044	WindowsUpdater.exe
5044	WindowsUpdater.exe
5044	WindowsUpdater.exe
5044	WindowsUpdater.exe
2896	explorer.exe
2896	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

4396 2896 WerFault.exe explorer.exe

pid	pid_target	process	target process
4396	2896	WerFault.exe	explorer.exe

NSIS installer 3 IoCs

installer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\DBE5.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:

d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf.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:

D155.exeexplorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	D155.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	D155.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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\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-1-5-21-3073191680-435865314-2862784915-1000\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-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf.exe

pid	process
5072	d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf.exe
5072	d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf.exe
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3500

Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf.exeD155.exeexplorer.exe

pid process

5072 d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf.exe
2572 D155.exe
2572 D155.exe
2896 explorer.exe

Suspicious use of AdjustPrivilegeToken 32 IoCs

Processes:

D155.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	2572	D155.exe
Token: SeRestorePrivilege	2572	D155.exe
Token: SeBackupPrivilege	2572	D155.exe
Token: SeLoadDriverPrivilege	2572	D155.exe
Token: SeCreatePagefilePrivilege	2572	D155.exe
Token: SeShutdownPrivilege	2572	D155.exe
Token: SeTakeOwnershipPrivilege	2572	D155.exe
Token: SeChangeNotifyPrivilege	2572	D155.exe
Token: SeCreateTokenPrivilege	2572	D155.exe
Token: SeMachineAccountPrivilege	2572	D155.exe
Token: SeSecurityPrivilege	2572	D155.exe
Token: SeAssignPrimaryTokenPrivilege	2572	D155.exe
Token: SeCreateGlobalPrivilege	2572	D155.exe
Token: 33	2572	D155.exe
Token: SeDebugPrivilege	2896	explorer.exe
Token: SeRestorePrivilege	2896	explorer.exe
Token: SeBackupPrivilege	2896	explorer.exe
Token: SeLoadDriverPrivilege	2896	explorer.exe
Token: SeCreatePagefilePrivilege	2896	explorer.exe
Token: SeShutdownPrivilege	2896	explorer.exe
Token: SeTakeOwnershipPrivilege	2896	explorer.exe
Token: SeChangeNotifyPrivilege	2896	explorer.exe
Token: SeCreateTokenPrivilege	2896	explorer.exe
Token: SeMachineAccountPrivilege	2896	explorer.exe
Token: SeSecurityPrivilege	2896	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	2896	explorer.exe
Token: SeCreateGlobalPrivilege	2896	explorer.exe
Token: 33	2896	explorer.exe
Token: SeShutdownPrivilege	3500
Token: SeCreatePagefilePrivilege	3500
Token: SeShutdownPrivilege	3500
Token: SeCreatePagefilePrivilege	3500

Suspicious use of UnmapMainImage 1 IoCs

Processes:

pid process

3500

pid	process
3500

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

D155.exeDBE5.exeexplorer.exe

description	pid	process	target process
PID 3500 wrote to memory of 2572	3500		D155.exe
PID 3500 wrote to memory of 2572	3500		D155.exe
PID 3500 wrote to memory of 2572	3500		D155.exe
PID 3500 wrote to memory of 4420	3500		DBE5.exe
PID 3500 wrote to memory of 4420	3500		DBE5.exe
PID 3500 wrote to memory of 4420	3500		DBE5.exe
PID 2572 wrote to memory of 2896	2572	D155.exe	explorer.exe
PID 2572 wrote to memory of 2896	2572	D155.exe	explorer.exe
PID 2572 wrote to memory of 2896	2572	D155.exe	explorer.exe
PID 4420 wrote to memory of 5044	4420	DBE5.exe	WindowsUpdater.exe
PID 4420 wrote to memory of 5044	4420	DBE5.exe	WindowsUpdater.exe
PID 4420 wrote to memory of 5044	4420	DBE5.exe	WindowsUpdater.exe
PID 2896 wrote to memory of 5044	2896	explorer.exe	WindowsUpdater.exe
PID 2896 wrote to memory of 5044	2896	explorer.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\d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf.exe
"C:\Users\Admin\AppData\Local\Temp\d51e52d04ae30864e781db7f25a8fd158271b6a4aa07e0c581e612e193aacecf.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:5072

C:\Users\Admin\AppData\Local\Temp\D155.exe
C:\Users\Admin\AppData\Local\Temp\D155.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:2572
- 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 behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2896
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2896 -s 1148
    3⤵
    - Program crash
    PID:4396

C:\Users\Admin\AppData\Local\Temp\DBE5.exe
C:\Users\Admin\AppData\Local\Temp\DBE5.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4420
- C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
  2⤵
  - Looks for VMWare services registry key.
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks whether UAC is enabled
  - Maps connected drives based on registry
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:5044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2896 -ip 2896
1⤵
PID:1532

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

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery