healer | a41ab2bd07680712b90506396ae19455adcc4d7d89ab338195bb37bea7f08fd9

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	bePT07hT03.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	cteQ04jD38.exe

Modifies Windows Defender Real-time Protection settings 3 TTPs 12 IoCs

defense_evasion trojan

Modify Registry

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	cteQ04jD38.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	bePT07hT03.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	bePT07hT03.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	bePT07hT03.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	bePT07hT03.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	cteQ04jD38.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	cteQ04jD38.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	bePT07hT03.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	bePT07hT03.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	cteQ04jD38.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	cteQ04jD38.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	cteQ04jD38.exe

Modifies Windows Defender TamperProtection settings 3 TTPs 2 IoCs

evasion trojan

Modify Registry

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	bePT07hT03.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	cteQ04jD38.exe

Modifies Windows Defender notification settings 3 TTPs 4 IoCs

defense_evasion trojan

Windows Service

Modify Registry

Disable or Modify Tools

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications	bePT07hT03.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	bePT07hT03.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications	cteQ04jD38.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	cteQ04jD38.exe

Executes dropped EXE 2 IoCs

pid	Process
4772	bePT07hT03.exe
1492	cteQ04jD38.exe

Windows security modification 2 TTPs 3 IoCs

defense_evasion trojan

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	cteQ04jD38.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	bePT07hT03.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	bePT07hT03.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	a41ab2bd07680712b90506396ae19455adcc4d7d89ab338195bb37bea7f08fd9.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2728	sc.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3340	4772	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bePT07hT03.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a41ab2bd07680712b90506396ae19455adcc4d7d89ab338195bb37bea7f08fd9.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4772	bePT07hT03.exe
4772	bePT07hT03.exe
1492	cteQ04jD38.exe
1492	cteQ04jD38.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4772	bePT07hT03.exe
Token: SeDebugPrivilege	1492	cteQ04jD38.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3224 wrote to memory of 4772	3224	a41ab2bd07680712b90506396ae19455adcc4d7d89ab338195bb37bea7f08fd9.exe	86
PID 3224 wrote to memory of 4772	3224	a41ab2bd07680712b90506396ae19455adcc4d7d89ab338195bb37bea7f08fd9.exe	86
PID 3224 wrote to memory of 4772	3224	a41ab2bd07680712b90506396ae19455adcc4d7d89ab338195bb37bea7f08fd9.exe	86
PID 3224 wrote to memory of 1492	3224	a41ab2bd07680712b90506396ae19455adcc4d7d89ab338195bb37bea7f08fd9.exe	100
PID 3224 wrote to memory of 1492	3224	a41ab2bd07680712b90506396ae19455adcc4d7d89ab338195bb37bea7f08fd9.exe	100

C:\Users\Admin\AppData\Local\Temp\a41ab2bd07680712b90506396ae19455adcc4d7d89ab338195bb37bea7f08fd9.exe
"C:\Users\Admin\AppData\Local\Temp\a41ab2bd07680712b90506396ae19455adcc4d7d89ab338195bb37bea7f08fd9.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3224
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bePT07hT03.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bePT07hT03.exe
  2⤵
  - Modifies Windows Defender DisableAntiSpyware settings
  - Modifies Windows Defender Real-time Protection settings
  - Modifies Windows Defender TamperProtection settings
  - Modifies Windows Defender notification settings
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4772
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 1084
    3⤵
    - Program crash
    PID:3340
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cteQ04jD38.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cteQ04jD38.exe
  2⤵
  - Modifies Windows Defender DisableAntiSpyware settings
  - Modifies Windows Defender Real-time Protection settings
  - Modifies Windows Defender TamperProtection settings
  - Modifies Windows Defender notification settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4772 -ip 4772
1⤵
PID:948

C:\Windows\system32\sc.exe
C:\Windows\system32\sc.exe start wuauserv
1⤵
- Launches sc.exe
PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Defense Evasion

Impair Defenses

5

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery