betabot | 55424ba52333947a5827238ff2b0905a9ae90c92fb7e9f0d165cbed47dffc47b

Windows Service

T1543.003

description	ioc	Process
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
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\7wki57suq33sq5.exe\DisableExceptionChainValidation	AB53.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 = "bav.exe"	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\7wki57suq33sq5.exe	AB53.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

Deletes itself 1 IoCs

pid	Process
3300	Process not Found

Executes dropped EXE 5 IoCs

pid	Process
4780	AB53.exe
3724	AF8A.exe
4256	WindowsUpdater.exe
2916	uauehch
4348	uauehch

Loads dropped DLL 2 IoCs

pid	Process
4256	WindowsUpdater.exe
4256	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-1-5-21-1155165157-2721788668-771323609-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Java Updater = "C:\\ProgramData\\Java Updater\\7wki57suq33sq5.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1155165157-2721788668-771323609-1000\Software\Microsoft\Windows\CurrentVersion\Run\Java Updater = "\"C:\\ProgramData\\Java Updater\\7wki57suq33sq5.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	AB53.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

pid	Process
4780	AB53.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 2 IoCs

description	pid	Process	procid_target
PID 800 set thread context of 4412	800	toolspab3.exe	79
PID 2916 set thread context of 4348	2916	uauehch	90

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

System Information Discovery
T1082

Program crash 3 IoCs

pid	pid_target	Process	procid_target
2408	4412	WerFault.exe	79
3632	1452	WerFault.exe	84
2448	4348	WerFault.exe	90

NSIS installer 8 IoCs

installer

resource	yara_rule
behavioral4/files/0x000400000002a7f5-37.dat	nsis_installer_2
behavioral4/files/0x000400000002a7f5-36.dat	nsis_installer_2
behavioral4/files/0x000200000002a7f6-46.dat	nsis_installer_1
behavioral4/files/0x000200000002a7f6-46.dat	nsis_installer_2
behavioral4/files/0x000200000002a7f6-48.dat	nsis_installer_1
behavioral4/files/0x000200000002a7f6-48.dat	nsis_installer_2
behavioral4/files/0x000200000002a7f6-50.dat	nsis_installer_1
behavioral4/files/0x000200000002a7f6-50.dat	nsis_installer_2

Checks SCSI registry key(s) 3 TTPs 6 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 queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	uauehch
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	uauehch
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab3.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab3.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	uauehch

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	AB53.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AB53.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-1-5-21-1155165157-2721788668-771323609-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1155165157-2721788668-771323609-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1155165157-2721788668-771323609-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1155165157-2721788668-771323609-1000\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-1-5-21-1155165157-2721788668-771323609-1000\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-1-5-21-1155165157-2721788668-771323609-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4412	toolspab3.exe
4412	toolspab3.exe
3300	Process not Found
3300	Process not Found
3300	Process not Found
3300	Process not Found
3300	Process not Found
3300	Process not Found
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3300	Process not Found

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
4412	toolspab3.exe
4780	AB53.exe
4780	AB53.exe
4348	uauehch

Suspicious use of AdjustPrivilegeToken 36 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3300	Process not Found
Token: SeCreatePagefilePrivilege	3300	Process not Found
Token: SeDebugPrivilege	4780	AB53.exe
Token: SeRestorePrivilege	4780	AB53.exe
Token: SeBackupPrivilege	4780	AB53.exe
Token: SeLoadDriverPrivilege	4780	AB53.exe
Token: SeCreatePagefilePrivilege	4780	AB53.exe
Token: SeShutdownPrivilege	4780	AB53.exe
Token: SeTakeOwnershipPrivilege	4780	AB53.exe
Token: SeChangeNotifyPrivilege	4780	AB53.exe
Token: SeCreateTokenPrivilege	4780	AB53.exe
Token: SeMachineAccountPrivilege	4780	AB53.exe
Token: SeSecurityPrivilege	4780	AB53.exe
Token: SeAssignPrimaryTokenPrivilege	4780	AB53.exe
Token: SeCreateGlobalPrivilege	4780	AB53.exe
Token: 33	4780	AB53.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	3300	Process not Found
Token: SeCreatePagefilePrivilege	3300	Process not Found
Token: SeShutdownPrivilege	3300	Process not Found
Token: SeCreatePagefilePrivilege	3300	Process not Found
Token: SeShutdownPrivilege	3300	Process not Found
Token: SeCreatePagefilePrivilege	3300	Process not Found

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 800 wrote to memory of 4412	800	toolspab3.exe	79
PID 800 wrote to memory of 4412	800	toolspab3.exe	79
PID 800 wrote to memory of 4412	800	toolspab3.exe	79
PID 800 wrote to memory of 4412	800	toolspab3.exe	79
PID 800 wrote to memory of 4412	800	toolspab3.exe	79
PID 800 wrote to memory of 4412	800	toolspab3.exe	79
PID 3300 wrote to memory of 4780	3300	Process not Found	83
PID 3300 wrote to memory of 4780	3300	Process not Found	83
PID 3300 wrote to memory of 4780	3300	Process not Found	83
PID 4780 wrote to memory of 1452	4780	AB53.exe	84
PID 4780 wrote to memory of 1452	4780	AB53.exe	84
PID 4780 wrote to memory of 1452	4780	AB53.exe	84
PID 3300 wrote to memory of 3724	3300	Process not Found	85
PID 3300 wrote to memory of 3724	3300	Process not Found	85
PID 3300 wrote to memory of 3724	3300	Process not Found	85
PID 3724 wrote to memory of 4256	3724	AF8A.exe	86
PID 3724 wrote to memory of 4256	3724	AF8A.exe	86
PID 3724 wrote to memory of 4256	3724	AF8A.exe	86
PID 2916 wrote to memory of 4348	2916	uauehch	90
PID 2916 wrote to memory of 4348	2916	uauehch	90
PID 2916 wrote to memory of 4348	2916	uauehch	90
PID 2916 wrote to memory of 4348	2916	uauehch	90
PID 2916 wrote to memory of 4348	2916	uauehch	90
PID 2916 wrote to memory of 4348	2916	uauehch	90

C:\Users\Admin\AppData\Local\Temp\toolspab3.exe
"C:\Users\Admin\AppData\Local\Temp\toolspab3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:800
- C:\Users\Admin\AppData\Local\Temp\toolspab3.exe
  "C:\Users\Admin\AppData\Local\Temp\toolspab3.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:4412
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4412 -s 364
    3⤵
    - Program crash
    PID:2408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4412 -ip 4412
1⤵
PID:4500

C:\Users\Admin\AppData\Local\Temp\AB53.exe
C:\Users\Admin\AppData\Local\Temp\AB53.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:4780
- 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 1080
    3⤵
    - Program crash
    PID:3632

C:\Users\Admin\AppData\Local\Temp\AF8A.exe
C:\Users\Admin\AppData\Local\Temp\AF8A.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3724
- C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:4256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1452 -ip 1452
1⤵
PID:3696

C:\Users\Admin\AppData\Roaming\uauehch
C:\Users\Admin\AppData\Roaming\uauehch
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Users\Admin\AppData\Roaming\uauehch
  C:\Users\Admin\AppData\Roaming\uauehch
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:4348
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4348 -s 364
    3⤵
    - Program crash
    PID:2448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4348 -ip 4348
1⤵
PID:980

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