betabot | 55424ba52333947a5827238ff2b0905a9ae90c92fb7e9f0d165cbed47dffc47b

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\euke3eusm7aw.exe	4DDD.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\euke3eusm7aw.exe\DisableExceptionChainValidation	4DDD.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 = "idj.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	5D10.exe

Deletes itself 1 IoCs

pid	Process
3464	Process not Found

Executes dropped EXE 5 IoCs

pid	Process
3324	4DDD.exe
1040	5D10.exe
384	WindowsUpdater.exe
3756	eccrrbv
4716	eccrrbv

Loads dropped DLL 2 IoCs

pid	Process
384	WindowsUpdater.exe
384	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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Java Updater = "C:\\ProgramData\\Java Updater\\euke3eusm7aw.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\\euke3eusm7aw.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	4DDD.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

pid	Process
3324	4DDD.exe
3780	explorer.exe
3780	explorer.exe
3780	explorer.exe
3780	explorer.exe
3780	explorer.exe
3780	explorer.exe
3780	explorer.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3916 set thread context of 4860	3916	toolspab3.exe	87
PID 3756 set thread context of 4716	3756	eccrrbv	105

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
2692	3780	WerFault.exe	96

NSIS installer 4 IoCs

installer

resource	yara_rule
behavioral3/files/0x0007000000023145-38.dat	nsis_installer_2
behavioral3/files/0x0007000000023145-39.dat	nsis_installer_2
behavioral3/files/0x0006000000023146-45.dat	nsis_installer_1
behavioral3/files/0x0006000000023146-45.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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	eccrrbv
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	eccrrbv
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	eccrrbv
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

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	4DDD.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4DDD.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-1-5-21-3073191680-435865314-2862784915-1000\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
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

Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs

Modify Registry

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

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

pid	Process
4860	toolspab3.exe
4860	toolspab3.exe
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
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3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
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3464	Process not Found
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3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
4860	toolspab3.exe
3324	4DDD.exe
3324	4DDD.exe
4716	eccrrbv

Suspicious use of AdjustPrivilegeToken 32 IoCs

description	pid	Process
Token: SeDebugPrivilege	3324	4DDD.exe
Token: SeRestorePrivilege	3324	4DDD.exe
Token: SeBackupPrivilege	3324	4DDD.exe
Token: SeLoadDriverPrivilege	3324	4DDD.exe
Token: SeCreatePagefilePrivilege	3324	4DDD.exe
Token: SeShutdownPrivilege	3324	4DDD.exe
Token: SeTakeOwnershipPrivilege	3324	4DDD.exe
Token: SeChangeNotifyPrivilege	3324	4DDD.exe
Token: SeCreateTokenPrivilege	3324	4DDD.exe
Token: SeMachineAccountPrivilege	3324	4DDD.exe
Token: SeSecurityPrivilege	3324	4DDD.exe
Token: SeAssignPrimaryTokenPrivilege	3324	4DDD.exe
Token: SeCreateGlobalPrivilege	3324	4DDD.exe
Token: 33	3324	4DDD.exe
Token: SeDebugPrivilege	3780	explorer.exe
Token: SeRestorePrivilege	3780	explorer.exe
Token: SeBackupPrivilege	3780	explorer.exe
Token: SeLoadDriverPrivilege	3780	explorer.exe
Token: SeCreatePagefilePrivilege	3780	explorer.exe
Token: SeShutdownPrivilege	3780	explorer.exe
Token: SeTakeOwnershipPrivilege	3780	explorer.exe
Token: SeChangeNotifyPrivilege	3780	explorer.exe
Token: SeCreateTokenPrivilege	3780	explorer.exe
Token: SeMachineAccountPrivilege	3780	explorer.exe
Token: SeSecurityPrivilege	3780	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	3780	explorer.exe
Token: SeCreateGlobalPrivilege	3780	explorer.exe
Token: 33	3780	explorer.exe
Token: SeShutdownPrivilege	3464	Process not Found
Token: SeCreatePagefilePrivilege	3464	Process not Found
Token: SeShutdownPrivilege	3464	Process not Found
Token: SeCreatePagefilePrivilege	3464	Process not Found

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3464	Process not Found

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3916 wrote to memory of 4860	3916	toolspab3.exe	87
PID 3916 wrote to memory of 4860	3916	toolspab3.exe	87
PID 3916 wrote to memory of 4860	3916	toolspab3.exe	87
PID 3916 wrote to memory of 4860	3916	toolspab3.exe	87
PID 3916 wrote to memory of 4860	3916	toolspab3.exe	87
PID 3916 wrote to memory of 4860	3916	toolspab3.exe	87
PID 3464 wrote to memory of 3324	3464	Process not Found	95
PID 3464 wrote to memory of 3324	3464	Process not Found	95
PID 3464 wrote to memory of 3324	3464	Process not Found	95
PID 3324 wrote to memory of 3780	3324	4DDD.exe	96
PID 3324 wrote to memory of 3780	3324	4DDD.exe	96
PID 3324 wrote to memory of 3780	3324	4DDD.exe	96
PID 3464 wrote to memory of 1040	3464	Process not Found	99
PID 3464 wrote to memory of 1040	3464	Process not Found	99
PID 3464 wrote to memory of 1040	3464	Process not Found	99
PID 1040 wrote to memory of 384	1040	5D10.exe	100
PID 1040 wrote to memory of 384	1040	5D10.exe	100
PID 1040 wrote to memory of 384	1040	5D10.exe	100
PID 3756 wrote to memory of 4716	3756	eccrrbv	105
PID 3756 wrote to memory of 4716	3756	eccrrbv	105
PID 3756 wrote to memory of 4716	3756	eccrrbv	105
PID 3756 wrote to memory of 4716	3756	eccrrbv	105
PID 3756 wrote to memory of 4716	3756	eccrrbv	105
PID 3756 wrote to memory of 4716	3756	eccrrbv	105

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\toolspab3.exe
"C:\Users\Admin\AppData\Local\Temp\toolspab3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3916
- 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:4860

C:\Users\Admin\AppData\Local\Temp\4DDD.exe
C:\Users\Admin\AppData\Local\Temp\4DDD.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:3324
- 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:3780
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3780 -s 1140
    3⤵
    - Program crash
    PID:2692

C:\Users\Admin\AppData\Local\Temp\5D10.exe
C:\Users\Admin\AppData\Local\Temp\5D10.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1040
- C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3780 -ip 3780
1⤵
PID:2768

C:\Users\Admin\AppData\Roaming\eccrrbv
C:\Users\Admin\AppData\Roaming\eccrrbv
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3756
- C:\Users\Admin\AppData\Roaming\eccrrbv
  C:\Users\Admin\AppData\Roaming\eccrrbv
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:4716

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