blackmoon | 922f57f2041b3e1e0a5ef916bed236a658332ced17091d551d1580c0fae62629

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	8.0.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 3 IoCs

pid	Process
3780	._cache_8.0.exe
4552	Synaptics.exe
2900	._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"	8.0.exe

Indicator Removal: Clear Persistence 1 TTPs 2 IoCs

remove IFEO.

defense_evasion

Clear Persistence

T1070.009

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\IMAGE FILE EXECUTION OPTIONS\._CACHE_8.0.EXE	._cache_8.0.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\IMAGE FILE EXECUTION OPTIONS\._CACHE_SYNAPTICS.EXE	._cache_Synaptics.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8.0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_8.0.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 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 Control Panel 6 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\Desktop	._cache_Synaptics.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\Desktop\LanguageConfiguration	._cache_Synaptics.exe
Key deleted	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\CONTROL PANEL\DESKTOP\LANGUAGECONFIGURATION	._cache_Synaptics.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\Desktop	._cache_8.0.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\Desktop\LanguageConfiguration	._cache_8.0.exe
Key deleted	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\CONTROL PANEL\DESKTOP\LANGUAGECONFIGURATION	._cache_8.0.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	8.0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
624	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3780	._cache_8.0.exe
Token: SeBackupPrivilege	3780	._cache_8.0.exe
Token: SeRestorePrivilege	3780	._cache_8.0.exe
Token: SeDebugPrivilege	2900	._cache_Synaptics.exe
Token: SeBackupPrivilege	2900	._cache_Synaptics.exe
Token: SeRestorePrivilege	2900	._cache_Synaptics.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
624	EXCEL.EXE
624	EXCEL.EXE
624	EXCEL.EXE
624	EXCEL.EXE
624	EXCEL.EXE
624	EXCEL.EXE
624	EXCEL.EXE
624	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3176 wrote to memory of 3780	3176	8.0.exe	83
PID 3176 wrote to memory of 3780	3176	8.0.exe	83
PID 3176 wrote to memory of 3780	3176	8.0.exe	83
PID 3176 wrote to memory of 4552	3176	8.0.exe	84
PID 3176 wrote to memory of 4552	3176	8.0.exe	84
PID 3176 wrote to memory of 4552	3176	8.0.exe	84
PID 4552 wrote to memory of 2900	4552	Synaptics.exe	85
PID 4552 wrote to memory of 2900	4552	Synaptics.exe	85
PID 4552 wrote to memory of 2900	4552	Synaptics.exe	85

C:\Users\Admin\AppData\Local\Temp\8.0.exe
"C:\Users\Admin\AppData\Local\Temp\8.0.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:3176
- C:\Users\Admin\AppData\Local\Temp\._cache_8.0.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_8.0.exe"
  2⤵
  - Event Triggered Execution: Image File Execution Options Injection
  - Executes dropped EXE
  - Indicator Removal: Clear Persistence
  - System Location Discovery: System Language Discovery
  - Modifies Control Panel
  - Suspicious use of AdjustPrivilegeToken
  PID:3780
- 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:4552
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Event Triggered Execution: Image File Execution Options Injection
    - Executes dropped EXE
    - Indicator Removal: Clear Persistence
    - System Location Discovery: System Language Discovery
    - Modifies Control Panel
    - Suspicious use of AdjustPrivilegeToken
    PID:2900

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:624

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

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Defense Evasion

Indicator Removal

T1070

Clear Persistence

Modify Registry

Credential Access

Discovery

Query Registry

3

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery