d71325d6cd03bc49ec0b3f3eb66984c605a02064fe8cf2bfd608769746b4b0b2

Windows Service

T1543.003

Disable or Modify Tools

Processes:

winsvcs.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	winsvcs.exe

Windows security bypass 2 TTPs 6 IoCs

evasion trojan

Disable or Modify Tools

Modify Registry

Processes:

winsvcs.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	winsvcs.exe

Executes dropped EXE 1 IoCs

Processes:

winsvcs.exe

pid process

1312 winsvcs.exe
Loads dropped DLL 2 IoCs

Processes:

a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe

pid process

2104 a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104 a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe

pid	process
1312	winsvcs.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

Modify Registry

Processes:

winsvcs.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AutoUpdateDisableNotify = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	winsvcs.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	winsvcs.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Services = "C:\\Windows\\T40506932020485930\\winsvcs.exe"	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Services = "C:\\Windows\\T40506932020485930\\winsvcs.exe"	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe

Drops file in Windows directory 3 IoCs

Processes:

a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe

description	ioc	process
File created	C:\Windows\T40506932020485930\winsvcs.exe	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
File opened for modification	C:\Windows\T40506932020485930\winsvcs.exe	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
File opened for modification	C:\Windows\T40506932020485930	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exewinsvcs.exe

pid	process
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe
1312	winsvcs.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe

description	pid	process	target process
PID 2104 wrote to memory of 1312	2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe	winsvcs.exe
PID 2104 wrote to memory of 1312	2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe	winsvcs.exe
PID 2104 wrote to memory of 1312	2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe	winsvcs.exe
PID 2104 wrote to memory of 1312	2104	a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe	winsvcs.exe

C:\Users\Admin\AppData\Local\Temp\a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a6100c665fd57bfde92a882459e042ab_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2104

C:\Windows\T40506932020485930\winsvcs.exe
C:\Windows\T40506932020485930\winsvcs.exe
2⤵
- Modifies Windows Defender Real-time Protection settings
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
PID:1312

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

4

Impair Defenses

3

T1562

Disable or Modify Tools

3