xred | fcfaedcd7aec7af6a21ae11d5deffb5392c4e8af1de18f14e0c69a6ffd965eaa

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation	._cache_Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation	Loader.exe
Key value queried	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation	._cache_Loader.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Illyrian Loader.exe	._cache_Loader.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Illyrian Loader.exe	._cache_Loader.exe

Executes dropped EXE 5 IoCs

pid	Process
4220	._cache_Loader.exe
3052	Synaptics.exe
3404	Illyrian Loader.exe
4912	._cache_Synaptics.exe
3556	Illyrian Loader.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	Loader.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e74f306ac06296e4255b2f2cb2797558 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\Illyrian Loader.exe"	._cache_Loader.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e74f306ac06296e4255b2f2cb2797558 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\Illyrian Loader.exe"	Illyrian Loader.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e74f306ac06296e4255b2f2cb2797558 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\Illyrian Loader.exe"	._cache_Synaptics.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e74f306ac06296e4255b2f2cb2797558 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\Illyrian Loader.exe"	Illyrian Loader.exe

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

System Information Discovery
T1082

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	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Loader.exe

Checks processor information in registry 2 TTPs 3 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	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Loader.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3404	Illyrian Loader.exe
4872	EXCEL.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 4220	1488	Loader.exe	87
PID 1488 wrote to memory of 4220	1488	Loader.exe	87
PID 1488 wrote to memory of 3052	1488	Loader.exe	88
PID 1488 wrote to memory of 3052	1488	Loader.exe	88
PID 1488 wrote to memory of 3052	1488	Loader.exe	88
PID 4220 wrote to memory of 3404	4220	._cache_Loader.exe	89
PID 4220 wrote to memory of 3404	4220	._cache_Loader.exe	89
PID 3052 wrote to memory of 4912	3052	Synaptics.exe	90
PID 3052 wrote to memory of 4912	3052	Synaptics.exe	90
PID 4912 wrote to memory of 3556	4912	._cache_Synaptics.exe	91
PID 4912 wrote to memory of 3556	4912	._cache_Synaptics.exe	91

C:\Users\Admin\AppData\Local\Temp\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Users\Admin\AppData\Local\Temp\._cache_Loader.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_Loader.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4220
- - C:\Users\Admin\AppData\Local\Temp\Microsoft\Illyrian Loader.exe
    "C:\Users\Admin\AppData\Local\Temp\Microsoft\Illyrian Loader.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: AddClipboardFormatListener
    PID:3404
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3052
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:4912
  - - C:\Users\Admin\AppData\Local\Temp\Microsoft\Illyrian Loader.exe
      "C:\Users\Admin\AppData\Local\Temp\Microsoft\Illyrian Loader.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      PID:3556

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4872

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

3

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery