gh0strat | f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	TXPlatforn.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 7 IoCs

pid	Process
3652	RVN.exe
3604	HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe
2288	TXPlatforn.exe
4940	TXPlatforn.exe
4288	._cache_HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe
3132	Synaptics.exe
2892	._cache_Synaptics.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"	HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe
File created	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3652-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3652-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3652-12-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3652-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2288-56-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2288-50-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2288-49-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2288-48-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2288-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4940-57-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4940-61-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4940-62-0x0000000010000000-0x00000000101B6000-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 9 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	RVN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.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	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2352	PING.EXE
3912	cmd.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 registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2352	PING.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2508	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3060	f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe
3060	f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4940	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3652	RVN.exe
Token: SeLoadDriverPrivilege	4940	TXPlatforn.exe
Token: 33	4940	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4940	TXPlatforn.exe
Token: 33	4940	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4940	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
3060	f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe
2508	EXCEL.EXE
2508	EXCEL.EXE
2508	EXCEL.EXE
2508	EXCEL.EXE
2508	EXCEL.EXE
2508	EXCEL.EXE
2508	EXCEL.EXE
2508	EXCEL.EXE

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 3652	3060	f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	83
PID 3060 wrote to memory of 3652	3060	f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	83
PID 3060 wrote to memory of 3652	3060	f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	83
PID 3060 wrote to memory of 3604	3060	f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	84
PID 3060 wrote to memory of 3604	3060	f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	84
PID 3060 wrote to memory of 3604	3060	f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	84
PID 3652 wrote to memory of 3912	3652	RVN.exe	86
PID 3652 wrote to memory of 3912	3652	RVN.exe	86
PID 3652 wrote to memory of 3912	3652	RVN.exe	86
PID 2288 wrote to memory of 4940	2288	TXPlatforn.exe	87
PID 2288 wrote to memory of 4940	2288	TXPlatforn.exe	87
PID 2288 wrote to memory of 4940	2288	TXPlatforn.exe	87
PID 3912 wrote to memory of 2352	3912	cmd.exe	89
PID 3912 wrote to memory of 2352	3912	cmd.exe	89
PID 3912 wrote to memory of 2352	3912	cmd.exe	89
PID 3604 wrote to memory of 4288	3604	HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	90
PID 3604 wrote to memory of 4288	3604	HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	90
PID 3604 wrote to memory of 4288	3604	HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	90
PID 3604 wrote to memory of 3132	3604	HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	92
PID 3604 wrote to memory of 3132	3604	HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	92
PID 3604 wrote to memory of 3132	3604	HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe	92
PID 3132 wrote to memory of 2892	3132	Synaptics.exe	93
PID 3132 wrote to memory of 2892	3132	Synaptics.exe	93
PID 3132 wrote to memory of 2892	3132	Synaptics.exe	93

C:\Users\Admin\AppData\Local\Temp\f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe
"C:\Users\Admin\AppData\Local\Temp\f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Local\Temp\RVN.exe
  C:\Users\Admin\AppData\Local\Temp\\RVN.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:3652
- - 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\RVN.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:3912
  - - 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:2352
- C:\Users\Admin\AppData\Local\Temp\HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe
  C:\Users\Admin\AppData\Local\Temp\HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.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:3604
- - C:\Users\Admin\AppData\Local\Temp\._cache_HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_HD_f3f7199ba9ae45e662bed0b593057355aeb5b604817599ee33b70f261ce926c1.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4288
- - 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:3132
  - - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2892

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Windows\SysWOW64\TXPlatforn.exe
  C:\Windows\SysWOW64\TXPlatforn.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:4940

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:2508

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