xred | f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe"	svchost.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Xred
Xred is backdoor written in Delphi.
backdoor xred
Xred family
xred

Boot or Logon Autostart Execution: Active Setup 2 TTPs 8 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	explorer.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	svchost.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	svchost.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\ACTIVE SETUP\INSTALLED COMPONENTS\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}	svchost.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 12 IoCs

pid	Process
1624	._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe
5096	Synaptics.exe
2124	._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730n.exe
2912	icsys.icn.exe
1284	explorer.exe
4792	._cache_Synaptics.exe
3384	spoolsv.exe
2888	._cache_synaptics.exe
3516	svchost.exe
2688	spoolsv.exe
2096	icsys.icn.exe
4372	explorer.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO"	explorer.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\system\svchost.exe	svchost.exe
File opened for modification	C:\Windows\system\udsys.exe	explorer.exe
File opened for modification	\??\c:\windows\system\explorer.exe	icsys.icn.exe
File opened for modification	\??\c:\windows\system\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\system\svchost.exe	spoolsv.exe
File opened for modification	\??\c:\windows\system\explorer.exe	explorer.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 13 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	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icsys.icn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	at.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	at.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icsys.icn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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\	f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4484	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2912	icsys.icn.exe
2912	icsys.icn.exe
1284	explorer.exe
1284	explorer.exe
1284	explorer.exe
1284	explorer.exe
1284	explorer.exe
1284	explorer.exe
1284	explorer.exe
1284	explorer.exe
1284	explorer.exe
1284	explorer.exe
1284	explorer.exe
1284	explorer.exe
3516	svchost.exe
3516	svchost.exe
3516	svchost.exe
3516	svchost.exe
3516	svchost.exe
3516	svchost.exe
1284	explorer.exe
1284	explorer.exe
3516	svchost.exe
3516	svchost.exe
3516	svchost.exe
3516	svchost.exe
3516	svchost.exe
3516	svchost.exe
1284	explorer.exe
1284	explorer.exe
3516	svchost.exe
3516	svchost.exe
3516	svchost.exe
3516	svchost.exe
1284	explorer.exe
1284	explorer.exe
3516	svchost.exe
3516	svchost.exe
1284	explorer.exe
1284	explorer.exe
3516	svchost.exe
3516	svchost.exe
1284	explorer.exe
1284	explorer.exe
3516	svchost.exe
3516	svchost.exe
1284	explorer.exe
1284	explorer.exe
3516	svchost.exe
3516	svchost.exe
1284	explorer.exe
1284	explorer.exe
3516	svchost.exe
3516	svchost.exe
1284	explorer.exe
1284	explorer.exe
3516	svchost.exe
3516	svchost.exe
1284	explorer.exe
1284	explorer.exe
3516	svchost.exe
3516	svchost.exe
1284	explorer.exe
1284	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1284	explorer.exe
3516	svchost.exe

Suspicious use of SetWindowsHookEx 28 IoCs

pid	Process
1624	._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe
1624	._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe
2912	icsys.icn.exe
2912	icsys.icn.exe
4792	._cache_Synaptics.exe
1284	explorer.exe
4792	._cache_Synaptics.exe
1284	explorer.exe
3384	spoolsv.exe
3384	spoolsv.exe
3516	svchost.exe
3516	svchost.exe
2688	spoolsv.exe
2688	spoolsv.exe
1284	explorer.exe
1284	explorer.exe
4484	EXCEL.EXE
4484	EXCEL.EXE
2096	icsys.icn.exe
2096	icsys.icn.exe
4372	explorer.exe
4372	explorer.exe
4484	EXCEL.EXE
4484	EXCEL.EXE
4484	EXCEL.EXE
4484	EXCEL.EXE
4484	EXCEL.EXE
4484	EXCEL.EXE

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 1624	4764	f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe	85
PID 4764 wrote to memory of 1624	4764	f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe	85
PID 4764 wrote to memory of 1624	4764	f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe	85
PID 4764 wrote to memory of 5096	4764	f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe	86
PID 4764 wrote to memory of 5096	4764	f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe	86
PID 4764 wrote to memory of 5096	4764	f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe	86
PID 1624 wrote to memory of 2124	1624	._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe	87
PID 1624 wrote to memory of 2124	1624	._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe	87
PID 1624 wrote to memory of 2912	1624	._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe	89
PID 1624 wrote to memory of 2912	1624	._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe	89
PID 1624 wrote to memory of 2912	1624	._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe	89
PID 2912 wrote to memory of 1284	2912	icsys.icn.exe	91
PID 2912 wrote to memory of 1284	2912	icsys.icn.exe	91
PID 2912 wrote to memory of 1284	2912	icsys.icn.exe	91
PID 5096 wrote to memory of 4792	5096	Synaptics.exe	90
PID 5096 wrote to memory of 4792	5096	Synaptics.exe	90
PID 5096 wrote to memory of 4792	5096	Synaptics.exe	90
PID 1284 wrote to memory of 3384	1284	explorer.exe	93
PID 1284 wrote to memory of 3384	1284	explorer.exe	93
PID 1284 wrote to memory of 3384	1284	explorer.exe	93
PID 4792 wrote to memory of 2888	4792	._cache_Synaptics.exe	94
PID 4792 wrote to memory of 2888	4792	._cache_Synaptics.exe	94
PID 3384 wrote to memory of 3516	3384	spoolsv.exe	95
PID 3384 wrote to memory of 3516	3384	spoolsv.exe	95
PID 3384 wrote to memory of 3516	3384	spoolsv.exe	95
PID 3516 wrote to memory of 2688	3516	svchost.exe	96
PID 3516 wrote to memory of 2688	3516	svchost.exe	96
PID 3516 wrote to memory of 2688	3516	svchost.exe	96
PID 4792 wrote to memory of 2096	4792	._cache_Synaptics.exe	97
PID 4792 wrote to memory of 2096	4792	._cache_Synaptics.exe	97
PID 4792 wrote to memory of 2096	4792	._cache_Synaptics.exe	97
PID 3516 wrote to memory of 4836	3516	svchost.exe	98
PID 3516 wrote to memory of 4836	3516	svchost.exe	98
PID 3516 wrote to memory of 4836	3516	svchost.exe	98
PID 2096 wrote to memory of 4372	2096	icsys.icn.exe	100
PID 2096 wrote to memory of 4372	2096	icsys.icn.exe	100
PID 2096 wrote to memory of 4372	2096	icsys.icn.exe	100
PID 3516 wrote to memory of 1916	3516	svchost.exe	120
PID 3516 wrote to memory of 1916	3516	svchost.exe	120
PID 3516 wrote to memory of 1916	3516	svchost.exe	120

C:\Users\Admin\AppData\Local\Temp\f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe
"C:\Users\Admin\AppData\Local\Temp\f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.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:4764
- C:\Users\Admin\AppData\Local\Temp\._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730N.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1624
- - \??\c:\users\admin\appdata\local\temp\._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730n.exe
    c:\users\admin\appdata\local\temp\._cache_f1c82a831b4dbcc5869fe60ea8879f073902d358f80b3525fa2682a895715730n.exe
    3⤵
    - Executes dropped EXE
    PID:2124
- - C:\Users\Admin\AppData\Local\icsys.icn.exe
    C:\Users\Admin\AppData\Local\icsys.icn.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2912
  - - \??\c:\windows\system\explorer.exe
      c:\windows\system\explorer.exe
      4⤵
      Modifies WinLogon for persistence
      Modifies visiblity of hidden/system files in Explorer
      Boot or Logon Autostart Execution: Active Setup
      Executes dropped EXE
      Adds Run key to start application
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1284
    - - \??\c:\windows\system\spoolsv.exe
        
        c:\windows\system\spoolsv.exe SE
        5⤵
        Executes dropped EXE
        Drops file in Windows directory
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3384
      - \??\c:\windows\system\svchost.exe
        
        c:\windows\system\svchost.exe
        6⤵
        Modifies WinLogon for persistence
        Modifies visiblity of hidden/system files in Explorer
        Boot or Logon Autostart Execution: Active Setup
        Executes dropped EXE
        Adds Run key to start application
        Drops file in Windows directory
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3516
        
        \??\c:\windows\system\spoolsv.exe
        
        c:\windows\system\spoolsv.exe PR
        7⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:2688
        
        C:\Windows\SysWOW64\at.exe
        
        at 20:24 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        7⤵
        System Location Discovery: System Language Discovery
        
        PID:4836
        
        C:\Windows\SysWOW64\at.exe
        
        at 20:25 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        7⤵
        System Location Discovery: System Language Discovery
        
        PID:1916
- 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:5096
- - 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 SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4792
  - - \??\c:\users\admin\appdata\local\temp\._cache_synaptics.exe
      c:\users\admin\appdata\local\temp\._cache_synaptics.exe InjUpdate
      4⤵
      Executes dropped EXE
      PID:2888
  - - C:\Users\Admin\AppData\Local\icsys.icn.exe
      C:\Users\Admin\AppData\Local\icsys.icn.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2096
    - - \??\c:\windows\system\explorer.exe
        
        c:\windows\system\explorer.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:4372

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:4484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery