xred | a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 3 IoCs

pid	Process
1924	._cache_a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe
4788	Synaptics.exe
4908	._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"	a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000c000000023b21-5.dat	upx
behavioral2/memory/1924-69-0x0000000000400000-0x0000000000C72000-memory.dmp	upx

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 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	a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_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

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

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\	a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5000	EXCEL.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 1924	2372	a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe	81
PID 2372 wrote to memory of 1924	2372	a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe	81
PID 2372 wrote to memory of 1924	2372	a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe	81
PID 2372 wrote to memory of 4788	2372	a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe	83
PID 2372 wrote to memory of 4788	2372	a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe	83
PID 2372 wrote to memory of 4788	2372	a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe	83
PID 4788 wrote to memory of 4908	4788	Synaptics.exe	84
PID 4788 wrote to memory of 4908	4788	Synaptics.exe	84
PID 4788 wrote to memory of 4908	4788	Synaptics.exe	84

C:\Users\Admin\AppData\Local\Temp\a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe
"C:\Users\Admin\AppData\Local\Temp\a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.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:2372
- C:\Users\Admin\AppData\Local\Temp\._cache_a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_a667a12314e2c8dc8a065c0cfaf983d00a24e6b8d72b2a5c8fb8816f1e709e27N.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1924
- 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:4788
- - 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:4908

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:5000

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