betabot | 60b290310f67adb0ae186b4b938ca466a6b55653b2519261fa425127f5500a1f

Windows Service

T1543.003

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

ModiLoader Second Stage 2 IoCs

resource	yara_rule
behavioral14/memory/4932-1-0x0000000000400000-0x000000000049F000-memory.dmp	modiloader_stage2
behavioral14/memory/1356-12-0x0000000000A00000-0x0000000000B02000-memory.dmp	modiloader_stage2

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\rstrui.exe	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe\Debugger = "ohmxqydih.exe"	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\791a1k793usg9.exe	BetaBot.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\791a1k793usg9.exe\DisableExceptionChainValidation	BetaBot.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

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-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Google Updater 5.0 = "C:\\ProgramData\\Google Updater 5.0\\791a1k793usg9.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Google Updater 5.0 = "\"C:\\ProgramData\\Google Updater 5.0\\791a1k793usg9.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	BetaBot.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

pid	Process
3020	BetaBot.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4932 set thread context of 3020	4932	BetaBot.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4984	1356	WerFault.exe	86

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	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	BetaBot.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	BetaBot.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-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\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-1-5-21-3558294865-3673844354-2255444939-1000\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-1-5-21-3558294865-3673844354-2255444939-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3020	BetaBot.exe
3020	BetaBot.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3020	BetaBot.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeDebugPrivilege	3020	BetaBot.exe
Token: SeRestorePrivilege	3020	BetaBot.exe
Token: SeBackupPrivilege	3020	BetaBot.exe
Token: SeLoadDriverPrivilege	3020	BetaBot.exe
Token: SeCreatePagefilePrivilege	3020	BetaBot.exe
Token: SeShutdownPrivilege	3020	BetaBot.exe
Token: SeTakeOwnershipPrivilege	3020	BetaBot.exe
Token: SeChangeNotifyPrivilege	3020	BetaBot.exe
Token: SeCreateTokenPrivilege	3020	BetaBot.exe
Token: SeMachineAccountPrivilege	3020	BetaBot.exe
Token: SeSecurityPrivilege	3020	BetaBot.exe
Token: SeAssignPrimaryTokenPrivilege	3020	BetaBot.exe
Token: SeCreateGlobalPrivilege	3020	BetaBot.exe
Token: 33	3020	BetaBot.exe
Token: SeDebugPrivilege	1356	explorer.exe
Token: SeRestorePrivilege	1356	explorer.exe
Token: SeBackupPrivilege	1356	explorer.exe
Token: SeLoadDriverPrivilege	1356	explorer.exe
Token: SeCreatePagefilePrivilege	1356	explorer.exe
Token: SeShutdownPrivilege	1356	explorer.exe
Token: SeTakeOwnershipPrivilege	1356	explorer.exe
Token: SeChangeNotifyPrivilege	1356	explorer.exe
Token: SeCreateTokenPrivilege	1356	explorer.exe
Token: SeMachineAccountPrivilege	1356	explorer.exe
Token: SeSecurityPrivilege	1356	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	1356	explorer.exe
Token: SeCreateGlobalPrivilege	1356	explorer.exe
Token: 33	1356	explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 3020	4932	BetaBot.exe	84
PID 4932 wrote to memory of 3020	4932	BetaBot.exe	84
PID 4932 wrote to memory of 3020	4932	BetaBot.exe	84
PID 4932 wrote to memory of 3020	4932	BetaBot.exe	84
PID 4932 wrote to memory of 3020	4932	BetaBot.exe	84
PID 3020 wrote to memory of 1356	3020	BetaBot.exe	86
PID 3020 wrote to memory of 1356	3020	BetaBot.exe	86
PID 3020 wrote to memory of 1356	3020	BetaBot.exe	86

C:\Users\Admin\AppData\Local\Temp\Trojan\BetaBot.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan\BetaBot.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4932
- C:\Users\Admin\AppData\Local\Temp\Trojan\BetaBot.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan\BetaBot.exe"
  2⤵
  - Sets file execution options in registry
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Checks processor information in registry
  - Suspicious behavior: MapViewOfSection
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3020
- - C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    3⤵
    - 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:1356
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 1148
      4⤵
      Program crash
      PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 212 -p 1356 -ip 1356
1⤵
PID:3664

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

Query Registry

System Information Discovery