xred | e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 3 IoCs

pid	Process
2628	._cache_e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe
3176	Synaptics.exe
4872	._cache_Synaptics.exe

Adds Run key to start application 2 TTPs 1 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"	e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5112	2628	WerFault.exe	83
1448	4872	WerFault.exe	89

System Location Discovery: System Language Discovery 1 TTPs 4 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	._cache_Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5092	EXCEL.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
5092	EXCEL.EXE
5092	EXCEL.EXE
5092	EXCEL.EXE
5092	EXCEL.EXE
5092	EXCEL.EXE
5092	EXCEL.EXE
5092	EXCEL.EXE
5092	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 2628	3396	e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe	83
PID 3396 wrote to memory of 2628	3396	e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe	83
PID 3396 wrote to memory of 2628	3396	e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe	83
PID 3396 wrote to memory of 3176	3396	e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe	85
PID 3396 wrote to memory of 3176	3396	e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe	85
PID 3396 wrote to memory of 3176	3396	e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe	85
PID 3176 wrote to memory of 4872	3176	Synaptics.exe	89
PID 3176 wrote to memory of 4872	3176	Synaptics.exe	89
PID 3176 wrote to memory of 4872	3176	Synaptics.exe	89

C:\Users\Admin\AppData\Local\Temp\e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe
"C:\Users\Admin\AppData\Local\Temp\e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.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:3396
- C:\Users\Admin\AppData\Local\Temp\._cache_e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_e38991eb71f26361dd0bddf923fc33c23f058b7ea800fb36fed59c789220e0d0.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2628 -s 832
    3⤵
    - Program crash
    PID:5112
- 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:3176
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4872
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 832
      4⤵
      Program crash
      PID:1448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2628 -ip 2628
1⤵
PID:1988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4872 -ip 4872
1⤵
PID:3172

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:5092

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