xred | dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 6 IoCs

pid	Process
4956	._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe
4076	._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.tmp
3836	Synaptics.exe
4572	._cache_Synaptics.exe
1092	._cache_Synaptics.tmp
856	ChecksumCalculator.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"	dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 7 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Checksum Calculator\is-OLNL0.tmp	._cache_Synaptics.tmp
File created	C:\Program Files (x86)\Checksum Calculator\is-7L9R4.tmp	._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.tmp
File created	C:\Program Files (x86)\Checksum Calculator\is-5V9KG.tmp	._cache_Synaptics.tmp
File created	C:\Program Files (x86)\Checksum Calculator\is-JVUDA.tmp	._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.tmp
File opened for modification	C:\Program Files (x86)\Checksum Calculator\unins000.dat	._cache_Synaptics.tmp
File created	C:\Program Files (x86)\Checksum Calculator\unins000.dat	._cache_Synaptics.tmp
File created	C:\Program Files (x86)\Checksum Calculator\unins001.dat	._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.tmp

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 7 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	ChecksumCalculator.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_Synaptics.tmp

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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\	dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4224	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1092	._cache_Synaptics.tmp
4076	._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.tmp

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4224	EXCEL.EXE
4224	EXCEL.EXE
4224	EXCEL.EXE
4224	EXCEL.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4220 wrote to memory of 4956	4220	dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe	86
PID 4220 wrote to memory of 4956	4220	dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe	86
PID 4220 wrote to memory of 4956	4220	dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe	86
PID 4956 wrote to memory of 4076	4956	._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe	87
PID 4956 wrote to memory of 4076	4956	._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe	87
PID 4956 wrote to memory of 4076	4956	._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe	87
PID 4220 wrote to memory of 3836	4220	dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe	88
PID 4220 wrote to memory of 3836	4220	dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe	88
PID 4220 wrote to memory of 3836	4220	dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe	88
PID 3836 wrote to memory of 4572	3836	Synaptics.exe	89
PID 3836 wrote to memory of 4572	3836	Synaptics.exe	89
PID 3836 wrote to memory of 4572	3836	Synaptics.exe	89
PID 4572 wrote to memory of 1092	4572	._cache_Synaptics.exe	90
PID 4572 wrote to memory of 1092	4572	._cache_Synaptics.exe	90
PID 4572 wrote to memory of 1092	4572	._cache_Synaptics.exe	90
PID 1092 wrote to memory of 856	1092	._cache_Synaptics.tmp	104
PID 1092 wrote to memory of 856	1092	._cache_Synaptics.tmp	104
PID 1092 wrote to memory of 856	1092	._cache_Synaptics.tmp	104

C:\Users\Admin\AppData\Local\Temp\dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe
"C:\Users\Admin\AppData\Local\Temp\dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.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:4220
- C:\Users\Admin\AppData\Local\Temp\._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4956
- - C:\Users\Admin\AppData\Local\Temp\is-VIMII.tmp\._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.tmp
    "C:\Users\Admin\AppData\Local\Temp\is-VIMII.tmp\._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.tmp" /SL5="$4017E,337902,54272,C:\Users\Admin\AppData\Local\Temp\._cache_dd09ce363101ef13dc72fe7ae9d5731eed2777f248eec37d87bd1efbd3c91a06N.exe"
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    PID:4076
- 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:3836
- - 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
    - Suspicious use of WriteProcessMemory
    PID:4572
  - - C:\Users\Admin\AppData\Local\Temp\is-ARSDI.tmp\._cache_Synaptics.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-ARSDI.tmp\._cache_Synaptics.tmp" /SL5="$80090,337902,54272,C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
      4⤵
      Executes dropped EXE
      Drops file in Program Files directory
      System Location Discovery: System Language Discovery
      Suspicious use of FindShellTrayWindow
      Suspicious use of WriteProcessMemory
      PID:1092
    - - C:\Program Files (x86)\Checksum Calculator\ChecksumCalculator.exe
        
        "C:\Program Files (x86)\Checksum Calculator\ChecksumCalculator.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:856

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:4224

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

4

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery