gh0strat | bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	Wxypq.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 7 IoCs

pid	Process
1020	._cache_bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe
1696	Synaptics.exe
5116	Wxypq.exe
1980	Wxypq.exe
2516	._cache_Synaptics.exe
4920	Wxypq.exe
800	Wxypq.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

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"	bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Wxypq.exe	._cache_bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe
File opened for modification	C:\Windows\SysWOW64\Wxypq.exe	._cache_bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.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 12 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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wxypq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wxypq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wxypq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wxypq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 4 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2468	cmd.exe
4860	cmd.exe
2472	PING.EXE
4988	PING.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 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 data under HKEY_USERS 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Wxypq.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Wxypq.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Wxypq.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery

T1018

pid	Process
2472	PING.EXE
4988	PING.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3596	EXCEL.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1980	Wxypq.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1020	._cache_bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe
Token: SeLoadDriverPrivilege	1980	Wxypq.exe
Token: SeIncBasePriorityPrivilege	2516	._cache_Synaptics.exe
Token: 33	1980	Wxypq.exe
Token: SeIncBasePriorityPrivilege	1980	Wxypq.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 1020	2652	bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe	82
PID 2652 wrote to memory of 1020	2652	bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe	82
PID 2652 wrote to memory of 1020	2652	bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe	82
PID 2652 wrote to memory of 1696	2652	bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe	83
PID 2652 wrote to memory of 1696	2652	bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe	83
PID 2652 wrote to memory of 1696	2652	bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe	83
PID 5116 wrote to memory of 1980	5116	Wxypq.exe	85
PID 5116 wrote to memory of 1980	5116	Wxypq.exe	85
PID 5116 wrote to memory of 1980	5116	Wxypq.exe	85
PID 1020 wrote to memory of 2468	1020	._cache_bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe	86
PID 1020 wrote to memory of 2468	1020	._cache_bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe	86
PID 1020 wrote to memory of 2468	1020	._cache_bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe	86
PID 1696 wrote to memory of 2516	1696	Synaptics.exe	88
PID 1696 wrote to memory of 2516	1696	Synaptics.exe	88
PID 1696 wrote to memory of 2516	1696	Synaptics.exe	88
PID 2516 wrote to memory of 4860	2516	._cache_Synaptics.exe	91
PID 2516 wrote to memory of 4860	2516	._cache_Synaptics.exe	91
PID 2516 wrote to memory of 4860	2516	._cache_Synaptics.exe	91
PID 4920 wrote to memory of 800	4920	Wxypq.exe	93
PID 4920 wrote to memory of 800	4920	Wxypq.exe	93
PID 4920 wrote to memory of 800	4920	Wxypq.exe	93
PID 2468 wrote to memory of 2472	2468	cmd.exe	95
PID 2468 wrote to memory of 2472	2468	cmd.exe	95
PID 2468 wrote to memory of 2472	2468	cmd.exe	95
PID 4860 wrote to memory of 4988	4860	cmd.exe	96
PID 4860 wrote to memory of 4988	4860	cmd.exe	96
PID 4860 wrote to memory of 4988	4860	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe
"C:\Users\Admin\AppData\Local\Temp\bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.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:2652
- C:\Users\Admin\AppData\Local\Temp\._cache_bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_bc538c3b64913abfacbd75ce5f26029a38f9be95ad31311ee3740a48cf702812N.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1020
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\_CACHE~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2468
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2472
- 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:1696
- - 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 AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2516
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\_CACHE~2.EXE > nul
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Suspicious use of WriteProcessMemory
      PID:4860
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping -n 2 127.0.0.1
        5⤵
        System Location Discovery: System Language Discovery
        System Network Configuration Discovery: Internet Connection Discovery
        Runs ping.exe
        
        PID:4988

C:\Windows\SysWOW64\Wxypq.exe
C:\Windows\SysWOW64\Wxypq.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5116
- C:\Windows\SysWOW64\Wxypq.exe
  C:\Windows\SysWOW64\Wxypq.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:1980

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:3596

C:\Windows\SysWOW64\Wxypq.exe
C:\Windows\SysWOW64\Wxypq.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4920
- C:\Windows\SysWOW64\Wxypq.exe
  C:\Windows\SysWOW64\Wxypq.exe -acsi
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

Remote System Discovery

T1018

System Information Discovery