f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983}	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msess32.exe"	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\concp32.exe	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
File created	C:\Windows\SysWOW64\vcl32.exe	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
File created	C:\Windows\SysWOW64\msess32.exe	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
File opened for modification	C:\Windows\SysWOW64\msess32.exe	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3204	5004	WerFault.exe	90

Modifies registry class 5 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 7fbb53078314cf437711c6d7e9705a82	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983}	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
5004	f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe

C:\Users\Admin\AppData\Local\Temp\f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
"C:\Users\Admin\AppData\Local\Temp\f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe"
1⤵
- Modifies Installed Components in the registry
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:5004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 704
  2⤵
  - Program crash
  PID:3204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 5004 -ip 5004
1⤵
PID:3104

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4472 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:4584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

3