xred | c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135e

System Information Discovery

Processes:

c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exeSynaptics.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 3 IoCs

Processes:

._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exeSynaptics.exe._cache_Synaptics.exe

pid process

856 ._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe
3684 Synaptics.exe
2308 ._cache_Synaptics.exe

pid	process
856	._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe
3684	Synaptics.exe
2308	._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:

c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe

description	ioc	process
File created	C:\Windows\assembly\Desktop.ini	._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe

Drops file in Windows directory 3 IoCs

Processes:

._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe

description	ioc	process
File opened for modification	C:\Windows\assembly	._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe
File created	C:\Windows\assembly\Desktop.ini	._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.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:

c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exeSynaptics.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.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 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

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:

c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exeSynaptics.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.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

3964 EXCEL.EXE
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

EXCEL.EXE

pid process

3964 EXCEL.EXE
3964 EXCEL.EXE
3964 EXCEL.EXE
3964 EXCEL.EXE

pid	process
3964	EXCEL.EXE

pid	process
3964	EXCEL.EXE
3964	EXCEL.EXE
3964	EXCEL.EXE
3964	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exeSynaptics.exe

description	pid	process	target process
PID 216 wrote to memory of 856	216	c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe	._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe
PID 216 wrote to memory of 856	216	c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe	._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe
PID 216 wrote to memory of 3684	216	c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe	Synaptics.exe
PID 216 wrote to memory of 3684	216	c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe	Synaptics.exe
PID 216 wrote to memory of 3684	216	c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe	Synaptics.exe
PID 3684 wrote to memory of 2308	3684	Synaptics.exe	._cache_Synaptics.exe
PID 3684 wrote to memory of 2308	3684	Synaptics.exe	._cache_Synaptics.exe

C:\Users\Admin\AppData\Local\Temp\c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe
"C:\Users\Admin\AppData\Local\Temp\c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.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:216
- C:\Users\Admin\AppData\Local\Temp\._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_c5629ef2fe84995c621c252e6fff307b7df1af0f78743bd3c678f3d319f6135eN.exe"
  2⤵
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  PID:856
- 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:3684
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    PID:2308

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:3964

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