xred | ae9f91672d7669b9db7e822d9d914df15d52cd7a70a6c97751031d960a940c52

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-194335498-2604837297-537231065-1000\Control Panel\International\Geo\Nation	start.exe
Key value queried	\REGISTRY\USER\S-1-5-21-194335498-2604837297-537231065-1000\Control Panel\International\Geo\Nation	boost tool.exe
Key value queried	\REGISTRY\USER\S-1-5-21-194335498-2604837297-537231065-1000\Control Panel\International\Geo\Nation	Windows.exe
Key value queried	\REGISTRY\USER\S-1-5-21-194335498-2604837297-537231065-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 6 IoCs

pid	Process
456	boost tool.exe
4632	start.exe
3904	Windows.exe
2920	._cache_Windows.exe
3316	Synaptics.exe
4000	._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\????? = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	Windows.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
19	ip-api.com

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 3 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	start.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Windows.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

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1616	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2920	._cache_Windows.exe
Token: SeDebugPrivilege	4000	._cache_Synaptics.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1616	EXCEL.EXE
1616	EXCEL.EXE
1616	EXCEL.EXE
1616	EXCEL.EXE
1616	EXCEL.EXE
1616	EXCEL.EXE
1616	EXCEL.EXE
1616	EXCEL.EXE

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3652 wrote to memory of 456	3652	start.exe	87
PID 3652 wrote to memory of 456	3652	start.exe	87
PID 456 wrote to memory of 4632	456	boost tool.exe	89
PID 456 wrote to memory of 4632	456	boost tool.exe	89
PID 456 wrote to memory of 4632	456	boost tool.exe	89
PID 4632 wrote to memory of 2036	4632	start.exe	91
PID 4632 wrote to memory of 2036	4632	start.exe	91
PID 3652 wrote to memory of 3904	3652	start.exe	93
PID 3652 wrote to memory of 3904	3652	start.exe	93
PID 3652 wrote to memory of 3904	3652	start.exe	93
PID 3904 wrote to memory of 2920	3904	Windows.exe	96
PID 3904 wrote to memory of 2920	3904	Windows.exe	96
PID 3904 wrote to memory of 3316	3904	Windows.exe	97
PID 3904 wrote to memory of 3316	3904	Windows.exe	97
PID 3904 wrote to memory of 3316	3904	Windows.exe	97
PID 3316 wrote to memory of 4000	3316	Synaptics.exe	98
PID 3316 wrote to memory of 4000	3316	Synaptics.exe	98

C:\Users\Admin\AppData\Local\Temp\start.exe
"C:\Users\Admin\AppData\Local\Temp\start.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3652
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\boost tool.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\boost tool.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:456
- - C:\Users\Admin\AppData\Local\Temp\RarSFX1\start.exe
    "C:\Users\Admin\AppData\Local\Temp\RarSFX1\start.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4632
  - - C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\8935.tmp\8936.tmp\8937.bat C:\Users\Admin\AppData\Local\Temp\RarSFX1\start.exe"
      4⤵
      PID:2036
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\Windows.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Windows.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:3904
- - C:\Users\Admin\AppData\Local\Temp\RarSFX0\._cache_Windows.exe
    "C:\Users\Admin\AppData\Local\Temp\RarSFX0\._cache_Windows.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2920
- - 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:3316
  - - C:\Users\Admin\AppData\Local\Temp\RarSFX0\._cache_Synaptics.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\._cache_Synaptics.exe" InjUpdate
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:4000

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:1616

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