betabot | 4a833b842da4b80715e9b02dc862fc3fd5fcda28a0e559e982876d024262b7f7

Windows Service

T1543.003

Processes:

explorer.exe

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

Sets file execution options in registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

1.exeexplorer.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\oa73eoc7m1.exe\DisableExceptionChainValidation	1.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 = "xhoq.exe"	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\oa73eoc7m1.exe	1.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
Executes dropped EXE 2 IoCs

Processes:

2.exe1.exe

pid process

428 2.exe
4884 1.exe

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

pid	process
428	2.exe
4884	1.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

Explorer.EXEexplorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Search = "C:\\ProgramData\\SearchEngine.exe"	Explorer.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Google Updater 2.0 = "C:\\ProgramData\\Google Updater 2.0\\oa73eoc7m1.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Google Updater 2.0 = "\"C:\\ProgramData\\Google Updater 2.0\\oa73eoc7m1.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

1.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 1.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

1.exeexplorer.exe

pid process

4884 1.exe
5016 explorer.exe
5016 explorer.exe
5016 explorer.exe
5016 explorer.exe
5016 explorer.exe
5016 explorer.exe
5016 explorer.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

2404 428 WerFault.exe 2.exe
4916 5016 WerFault.exe explorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	1.exe

pid	process
4884	1.exe
5016	explorer.exe
5016	explorer.exe
5016	explorer.exe
5016	explorer.exe
5016	explorer.exe
5016	explorer.exe
5016	explorer.exe

pid	pid_target	process	target process
2404	428	WerFault.exe	2.exe
4916	5016	WerFault.exe	explorer.exe

Checks processor information in registry 2 TTPs 6 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

explorer.exeExplorer.EXE1.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	Explorer.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Explorer.EXE
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	1.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

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-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\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-1-5-21-540404634-651139247-2967210625-1000\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-1-5-21-540404634-651139247-2967210625-1000\Software\Microsoft\Internet Explorer\Main explorer.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

2.exeexplorer.exe

pid process

428 2.exe
428 2.exe
5016 explorer.exe
5016 explorer.exe
5016 explorer.exe
5016 explorer.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

1.exe

pid process

4884 1.exe
4884 1.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

pid	process
428	2.exe
428	2.exe
5016	explorer.exe
5016	explorer.exe
5016	explorer.exe
5016	explorer.exe

pid	process
4884	1.exe
4884	1.exe

Suspicious use of AdjustPrivilegeToken 34 IoCs

Processes:

2.exeExplorer.EXE1.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	428	2.exe
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeDebugPrivilege	4884	1.exe
Token: SeRestorePrivilege	4884	1.exe
Token: SeBackupPrivilege	4884	1.exe
Token: SeLoadDriverPrivilege	4884	1.exe
Token: SeCreatePagefilePrivilege	4884	1.exe
Token: SeShutdownPrivilege	4884	1.exe
Token: SeTakeOwnershipPrivilege	4884	1.exe
Token: SeChangeNotifyPrivilege	4884	1.exe
Token: SeCreateTokenPrivilege	4884	1.exe
Token: SeMachineAccountPrivilege	4884	1.exe
Token: SeSecurityPrivilege	4884	1.exe
Token: SeAssignPrimaryTokenPrivilege	4884	1.exe
Token: SeCreateGlobalPrivilege	4884	1.exe
Token: 33	4884	1.exe
Token: SeCreateGlobalPrivilege	3424	Explorer.EXE
Token: SeDebugPrivilege	5016	explorer.exe
Token: SeRestorePrivilege	5016	explorer.exe
Token: SeBackupPrivilege	5016	explorer.exe
Token: SeLoadDriverPrivilege	5016	explorer.exe
Token: SeCreatePagefilePrivilege	5016	explorer.exe
Token: SeShutdownPrivilege	5016	explorer.exe
Token: SeTakeOwnershipPrivilege	5016	explorer.exe
Token: SeChangeNotifyPrivilege	5016	explorer.exe
Token: SeCreateTokenPrivilege	5016	explorer.exe
Token: SeMachineAccountPrivilege	5016	explorer.exe
Token: SeSecurityPrivilege	5016	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	5016	explorer.exe
Token: SeCreateGlobalPrivilege	5016	explorer.exe
Token: 33	5016	explorer.exe
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

betab.exe2.exe1.exe

description	pid	process	target process
PID 2836 wrote to memory of 428	2836	betab.exe	2.exe
PID 2836 wrote to memory of 428	2836	betab.exe	2.exe
PID 2836 wrote to memory of 428	2836	betab.exe	2.exe
PID 428 wrote to memory of 3424	428	2.exe	Explorer.EXE
PID 428 wrote to memory of 3424	428	2.exe	Explorer.EXE
PID 428 wrote to memory of 3424	428	2.exe	Explorer.EXE
PID 428 wrote to memory of 3424	428	2.exe	Explorer.EXE
PID 428 wrote to memory of 3424	428	2.exe	Explorer.EXE
PID 428 wrote to memory of 3424	428	2.exe	Explorer.EXE
PID 428 wrote to memory of 3424	428	2.exe	Explorer.EXE
PID 428 wrote to memory of 3424	428	2.exe	Explorer.EXE
PID 428 wrote to memory of 3424	428	2.exe	Explorer.EXE
PID 428 wrote to memory of 3424	428	2.exe	Explorer.EXE
PID 2836 wrote to memory of 4884	2836	betab.exe	1.exe
PID 2836 wrote to memory of 4884	2836	betab.exe	1.exe
PID 2836 wrote to memory of 4884	2836	betab.exe	1.exe
PID 4884 wrote to memory of 5016	4884	1.exe	explorer.exe
PID 4884 wrote to memory of 5016	4884	1.exe	explorer.exe
PID 4884 wrote to memory of 5016	4884	1.exe	explorer.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Adds Run key to start application
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:3424
- C:\Users\Admin\AppData\Local\Temp\betab.exe
  "C:\Users\Admin\AppData\Local\Temp\betab.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Users\Admin\AppData\Roaming\2.exe
    "C:\Users\Admin\AppData\Roaming\2.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:428
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 776
      4⤵
      Program crash
      PID:2404
- - C:\Users\Admin\AppData\Roaming\1.exe
    "C:\Users\Admin\AppData\Roaming\1.exe"
    3⤵
    - 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:4884
  - - C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      4⤵
      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: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:5016
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1116
        5⤵
        Program crash
        
        PID:4916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 428 -ip 428
1⤵
PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 5016 -ip 5016
1⤵
PID:1196

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

6