xred | 2cbf4a18cf8df6a631826a5006d13b3bf36d0971b8c96678b278fc99795a9386

System Information Discovery

Processes:

Synaptics.exeStix_Advanced_Tweak.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	Stix_Advanced_Tweak.exe

Executes dropped EXE 3 IoCs

Processes:

._cache_Stix_Advanced_Tweak.exeSynaptics.exe._cache_Synaptics.exe

pid process

2880 ._cache_Stix_Advanced_Tweak.exe
1952 Synaptics.exe
1664 ._cache_Synaptics.exe

pid	process
2880	._cache_Stix_Advanced_Tweak.exe
1952	Synaptics.exe
1664	._cache_Synaptics.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Stix_Advanced_Tweak.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	Stix_Advanced_Tweak.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

Processes:

Stix_Advanced_Tweak.exeSynaptics.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Stix_Advanced_Tweak.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.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

Processes:

EXCEL.EXE

description	ioc	process
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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

Processes:

EXCEL.EXE

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

Processes:

Stix_Advanced_Tweak.exeSynaptics.exe

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

400 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

._cache_Stix_Advanced_Tweak.exe._cache_Synaptics.exe

description pid process

Token: SeDebugPrivilege 2880 ._cache_Stix_Advanced_Tweak.exe
Token: SeDebugPrivilege 1664 ._cache_Synaptics.exe
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

EXCEL.EXE

pid process

400 EXCEL.EXE
400 EXCEL.EXE
400 EXCEL.EXE
400 EXCEL.EXE
400 EXCEL.EXE
400 EXCEL.EXE
400 EXCEL.EXE
400 EXCEL.EXE

pid	process
400	EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	2880	._cache_Stix_Advanced_Tweak.exe
Token: SeDebugPrivilege	1664	._cache_Synaptics.exe

pid	process
400	EXCEL.EXE
400	EXCEL.EXE
400	EXCEL.EXE
400	EXCEL.EXE
400	EXCEL.EXE
400	EXCEL.EXE
400	EXCEL.EXE
400	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

Stix_Advanced_Tweak.exeSynaptics.exe

description	pid	process	target process
PID 1968 wrote to memory of 2880	1968	Stix_Advanced_Tweak.exe	._cache_Stix_Advanced_Tweak.exe
PID 1968 wrote to memory of 2880	1968	Stix_Advanced_Tweak.exe	._cache_Stix_Advanced_Tweak.exe
PID 1968 wrote to memory of 1952	1968	Stix_Advanced_Tweak.exe	Synaptics.exe
PID 1968 wrote to memory of 1952	1968	Stix_Advanced_Tweak.exe	Synaptics.exe
PID 1968 wrote to memory of 1952	1968	Stix_Advanced_Tweak.exe	Synaptics.exe
PID 1952 wrote to memory of 1664	1952	Synaptics.exe	._cache_Synaptics.exe
PID 1952 wrote to memory of 1664	1952	Synaptics.exe	._cache_Synaptics.exe

C:\Users\Admin\AppData\Local\Temp\Stix_Advanced_Tweak.exe
"C:\Users\Admin\AppData\Local\Temp\Stix_Advanced_Tweak.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:1968
- C:\Users\Admin\AppData\Local\Temp\._cache_Stix_Advanced_Tweak.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_Stix_Advanced_Tweak.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2880
- 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:1952
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:1664

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:400

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