xred | 447c72c5138078fc11668200f09edaff028ceb40097e409b3ff49125fcc79c9a

System Information Discovery

Processes:

MSRX.exeSynaptics.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	MSRX.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 4 IoCs

Processes:

MSRX.exe._cache_MSRX.exeSynaptics.exe._cache_Synaptics.exe

pid	Process
2956	MSRX.exe
3760	._cache_MSRX.exe
4476	Synaptics.exe
3196	._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:

MSRX.exe

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

Processes:

._cache_Synaptics.exeMSRX.exe._cache_MSRX.exeSynaptics.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSRX.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_MSRX.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:

MSRX.exeSynaptics.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	MSRX.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
3772	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

7zFM.exe

pid	Process
3288	7zFM.exe
3288	7zFM.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

7zFM.exe

pid	Process
3288	7zFM.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

7zFM.exe

description	pid	Process
Token: SeRestorePrivilege	3288	7zFM.exe
Token: 35	3288	7zFM.exe
Token: SeSecurityPrivilege	3288	7zFM.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

7zFM.exe

pid	Process
3288	7zFM.exe
3288	7zFM.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

EXCEL.EXE

pid	Process
3772	EXCEL.EXE
3772	EXCEL.EXE
3772	EXCEL.EXE
3772	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

7zFM.exeMSRX.exeSynaptics.exe

description	pid	Process	procid_target
PID 3288 wrote to memory of 2956	3288	7zFM.exe	90
PID 3288 wrote to memory of 2956	3288	7zFM.exe	90
PID 3288 wrote to memory of 2956	3288	7zFM.exe	90
PID 2956 wrote to memory of 3760	2956	MSRX.exe	92
PID 2956 wrote to memory of 3760	2956	MSRX.exe	92
PID 2956 wrote to memory of 3760	2956	MSRX.exe	92
PID 2956 wrote to memory of 4476	2956	MSRX.exe	93
PID 2956 wrote to memory of 4476	2956	MSRX.exe	93
PID 2956 wrote to memory of 4476	2956	MSRX.exe	93
PID 4476 wrote to memory of 3196	4476	Synaptics.exe	94
PID 4476 wrote to memory of 3196	4476	Synaptics.exe	94
PID 4476 wrote to memory of 3196	4476	Synaptics.exe	94

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\MSRX.7z"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3288
- C:\Users\Admin\AppData\Local\Temp\7zO8DCBED68\MSRX.exe
  "C:\Users\Admin\AppData\Local\Temp\7zO8DCBED68\MSRX.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2956
- - C:\Users\Admin\AppData\Local\Temp\7zO8DCBED68\._cache_MSRX.exe
    "C:\Users\Admin\AppData\Local\Temp\7zO8DCBED68\._cache_MSRX.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3760
- - C:\ProgramData\Synaptics\Synaptics.exe
    "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:4476
  - - C:\Users\Admin\AppData\Local\Temp\7zO8DCBED68\._cache_Synaptics.exe
      "C:\Users\Admin\AppData\Local\Temp\7zO8DCBED68\._cache_Synaptics.exe" InjUpdate
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:3196

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:3772

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