betabot | 2522bb19e9b419120009d7d5224ef2dd556ba7f778e2b914b3e574a3d07df0dd

Windows Service

T1543.003

description	ioc	Process
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
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

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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\meggwgyc71.exe	2054.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\meggwgyc71.exe\DisableExceptionChainValidation	2054.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 = "mefm.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

System Information Discovery

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

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	26AE.exe

Deletes itself 1 IoCs

pid	Process
3380	Process not Found

Executes dropped EXE 3 IoCs

pid	Process
5072	2054.exe
3964	26AE.exe
2192	WindowsUpdater.exe

Loads dropped DLL 3 IoCs

pid	Process
4816	67b4881f8ca0bd13f5802262ce3ca136.exe
2192	WindowsUpdater.exe
2192	WindowsUpdater.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Java Updater = "C:\\ProgramData\\Java Updater\\meggwgyc71.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java Updater = "\"C:\\ProgramData\\Java Updater\\meggwgyc71.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2054.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

pid	Process
5072	2054.exe
1452	explorer.exe
1452	explorer.exe
1452	explorer.exe
1452	explorer.exe
1452	explorer.exe
1452	explorer.exe
1452	explorer.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2600 set thread context of 4816	2600	67b4881f8ca0bd13f5802262ce3ca136.exe	88

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3148	1452	WerFault.exe	99

NSIS installer 4 IoCs

installer

resource	yara_rule
behavioral2/files/0x0007000000023249-22.dat	nsis_installer_2
behavioral2/files/0x0007000000023249-24.dat	nsis_installer_2
behavioral2/files/0x000f000000023234-40.dat	nsis_installer_1
behavioral2/files/0x000f000000023234-40.dat	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	67b4881f8ca0bd13f5802262ce3ca136.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	67b4881f8ca0bd13f5802262ce3ca136.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	67b4881f8ca0bd13f5802262ce3ca136.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2054.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2054.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

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

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3"	explorer.exe

Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1"	explorer.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4816	67b4881f8ca0bd13f5802262ce3ca136.exe
4816	67b4881f8ca0bd13f5802262ce3ca136.exe
3380	Process not Found
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3380	Process not Found

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4816	67b4881f8ca0bd13f5802262ce3ca136.exe
5072	2054.exe
5072	2054.exe

Suspicious use of AdjustPrivilegeToken 30 IoCs

description	pid	Process
Token: SeDebugPrivilege	5072	2054.exe
Token: SeRestorePrivilege	5072	2054.exe
Token: SeBackupPrivilege	5072	2054.exe
Token: SeLoadDriverPrivilege	5072	2054.exe
Token: SeCreatePagefilePrivilege	5072	2054.exe
Token: SeShutdownPrivilege	5072	2054.exe
Token: SeTakeOwnershipPrivilege	5072	2054.exe
Token: SeChangeNotifyPrivilege	5072	2054.exe
Token: SeCreateTokenPrivilege	5072	2054.exe
Token: SeMachineAccountPrivilege	5072	2054.exe
Token: SeSecurityPrivilege	5072	2054.exe
Token: SeAssignPrimaryTokenPrivilege	5072	2054.exe
Token: SeCreateGlobalPrivilege	5072	2054.exe
Token: 33	5072	2054.exe
Token: SeDebugPrivilege	1452	explorer.exe
Token: SeRestorePrivilege	1452	explorer.exe
Token: SeBackupPrivilege	1452	explorer.exe
Token: SeLoadDriverPrivilege	1452	explorer.exe
Token: SeCreatePagefilePrivilege	1452	explorer.exe
Token: SeShutdownPrivilege	1452	explorer.exe
Token: SeTakeOwnershipPrivilege	1452	explorer.exe
Token: SeChangeNotifyPrivilege	1452	explorer.exe
Token: SeCreateTokenPrivilege	1452	explorer.exe
Token: SeMachineAccountPrivilege	1452	explorer.exe
Token: SeSecurityPrivilege	1452	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	1452	explorer.exe
Token: SeCreateGlobalPrivilege	1452	explorer.exe
Token: 33	1452	explorer.exe
Token: SeShutdownPrivilege	3380	Process not Found
Token: SeCreatePagefilePrivilege	3380	Process not Found

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3380	Process not Found

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 4816	2600	67b4881f8ca0bd13f5802262ce3ca136.exe	88
PID 2600 wrote to memory of 4816	2600	67b4881f8ca0bd13f5802262ce3ca136.exe	88
PID 2600 wrote to memory of 4816	2600	67b4881f8ca0bd13f5802262ce3ca136.exe	88
PID 2600 wrote to memory of 4816	2600	67b4881f8ca0bd13f5802262ce3ca136.exe	88
PID 2600 wrote to memory of 4816	2600	67b4881f8ca0bd13f5802262ce3ca136.exe	88
PID 2600 wrote to memory of 4816	2600	67b4881f8ca0bd13f5802262ce3ca136.exe	88
PID 3380 wrote to memory of 5072	3380	Process not Found	97
PID 3380 wrote to memory of 5072	3380	Process not Found	97
PID 3380 wrote to memory of 5072	3380	Process not Found	97
PID 3380 wrote to memory of 3964	3380	Process not Found	98
PID 3380 wrote to memory of 3964	3380	Process not Found	98
PID 3380 wrote to memory of 3964	3380	Process not Found	98
PID 5072 wrote to memory of 1452	5072	2054.exe	99
PID 5072 wrote to memory of 1452	5072	2054.exe	99
PID 5072 wrote to memory of 1452	5072	2054.exe	99
PID 3964 wrote to memory of 2192	3964	26AE.exe	100
PID 3964 wrote to memory of 2192	3964	26AE.exe	100
PID 3964 wrote to memory of 2192	3964	26AE.exe	100

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\67b4881f8ca0bd13f5802262ce3ca136.exe
"C:\Users\Admin\AppData\Local\Temp\67b4881f8ca0bd13f5802262ce3ca136.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2600
- C:\Users\Admin\AppData\Local\Temp\67b4881f8ca0bd13f5802262ce3ca136.exe
  "C:\Users\Admin\AppData\Local\Temp\67b4881f8ca0bd13f5802262ce3ca136.exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:4816

C:\Users\Admin\AppData\Local\Temp\2054.exe
C:\Users\Admin\AppData\Local\Temp\2054.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:5072
- 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:1452
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1452 -s 1144
    3⤵
    - Program crash
    PID:3148

C:\Users\Admin\AppData\Local\Temp\26AE.exe
C:\Users\Admin\AppData\Local\Temp\26AE.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3964
- C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1452 -ip 1452
1⤵
PID:4692

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