xred | 4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe

Executes dropped EXE 11 IoCs

pid	Process
4000	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe
3728	Synaptics.exe
4188	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3n.exe
2724	._cache_Synaptics.exe
3168	._cache_synaptics.exe
4988	icsys.icn.exe
2940	explorer.exe
4024	spoolsv.exe
3316	icsys.icn.exe
216	svchost.exe
2104	spoolsv.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"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO"	explorer.exe
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"	4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
4188	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3n.exe
3168	._cache_synaptics.exe
4188	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3n.exe
3168	._cache_synaptics.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\system\svchost.exe	spoolsv.exe
File opened for modification	\??\c:\windows\system\explorer.exe	explorer.exe
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

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	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	at.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icsys.icn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
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	at.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icsys.icn.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1552	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4988	icsys.icn.exe
4988	icsys.icn.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
2940	explorer.exe
216	svchost.exe
216	svchost.exe
216	svchost.exe
216	svchost.exe
2940	explorer.exe
2940	explorer.exe
216	svchost.exe
216	svchost.exe
2940	explorer.exe
2940	explorer.exe
216	svchost.exe
216	svchost.exe
2940	explorer.exe
2940	explorer.exe
216	svchost.exe
216	svchost.exe
2940	explorer.exe
2940	explorer.exe
216	svchost.exe
216	svchost.exe
2940	explorer.exe
2940	explorer.exe
216	svchost.exe
216	svchost.exe
2940	explorer.exe
2940	explorer.exe
216	svchost.exe
216	svchost.exe
2940	explorer.exe
2940	explorer.exe
216	svchost.exe
216	svchost.exe
2940	explorer.exe
2940	explorer.exe
216	svchost.exe
216	svchost.exe
2940	explorer.exe
2940	explorer.exe
216	svchost.exe
216	svchost.exe
2940	explorer.exe
2940	explorer.exe
216	svchost.exe
216	svchost.exe
2940	explorer.exe
2940	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2940	explorer.exe
216	svchost.exe

Suspicious use of SetWindowsHookEx 26 IoCs

pid	Process
4000	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe
4000	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe
2724	._cache_Synaptics.exe
2724	._cache_Synaptics.exe
1552	EXCEL.EXE
1552	EXCEL.EXE
4988	icsys.icn.exe
4988	icsys.icn.exe
1552	EXCEL.EXE
1552	EXCEL.EXE
2940	explorer.exe
2940	explorer.exe
4024	spoolsv.exe
4024	spoolsv.exe
216	svchost.exe
216	svchost.exe
2104	spoolsv.exe
2104	spoolsv.exe
3316	icsys.icn.exe
3316	icsys.icn.exe
2940	explorer.exe
2940	explorer.exe
1552	EXCEL.EXE
1552	EXCEL.EXE
1552	EXCEL.EXE
1552	EXCEL.EXE

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 976 wrote to memory of 4000	976	4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe	83
PID 976 wrote to memory of 4000	976	4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe	83
PID 976 wrote to memory of 4000	976	4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe	83
PID 976 wrote to memory of 3728	976	4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe	84
PID 976 wrote to memory of 3728	976	4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe	84
PID 976 wrote to memory of 3728	976	4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe	84
PID 4000 wrote to memory of 4188	4000	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe	85
PID 4000 wrote to memory of 4188	4000	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe	85
PID 3728 wrote to memory of 2724	3728	Synaptics.exe	86
PID 3728 wrote to memory of 2724	3728	Synaptics.exe	86
PID 3728 wrote to memory of 2724	3728	Synaptics.exe	86
PID 2724 wrote to memory of 3168	2724	._cache_Synaptics.exe	88
PID 2724 wrote to memory of 3168	2724	._cache_Synaptics.exe	88
PID 2724 wrote to memory of 4988	2724	._cache_Synaptics.exe	90
PID 2724 wrote to memory of 4988	2724	._cache_Synaptics.exe	90
PID 2724 wrote to memory of 4988	2724	._cache_Synaptics.exe	90
PID 4988 wrote to memory of 2940	4988	icsys.icn.exe	91
PID 4988 wrote to memory of 2940	4988	icsys.icn.exe	91
PID 4988 wrote to memory of 2940	4988	icsys.icn.exe	91
PID 2940 wrote to memory of 4024	2940	explorer.exe	92
PID 2940 wrote to memory of 4024	2940	explorer.exe	92
PID 2940 wrote to memory of 4024	2940	explorer.exe	92
PID 4000 wrote to memory of 3316	4000	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe	93
PID 4000 wrote to memory of 3316	4000	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe	93
PID 4000 wrote to memory of 3316	4000	._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe	93
PID 4024 wrote to memory of 216	4024	spoolsv.exe	94
PID 4024 wrote to memory of 216	4024	spoolsv.exe	94
PID 4024 wrote to memory of 216	4024	spoolsv.exe	94
PID 216 wrote to memory of 2104	216	svchost.exe	95
PID 216 wrote to memory of 2104	216	svchost.exe	95
PID 216 wrote to memory of 2104	216	svchost.exe	95
PID 216 wrote to memory of 4288	216	svchost.exe	96
PID 216 wrote to memory of 4288	216	svchost.exe	96
PID 216 wrote to memory of 4288	216	svchost.exe	96
PID 216 wrote to memory of 1576	216	svchost.exe	118
PID 216 wrote to memory of 1576	216	svchost.exe	118
PID 216 wrote to memory of 1576	216	svchost.exe	118

C:\Users\Admin\AppData\Local\Temp\4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe
"C:\Users\Admin\AppData\Local\Temp\4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.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:976
- C:\Users\Admin\AppData\Local\Temp\._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4000
- - \??\c:\users\admin\appdata\local\temp\._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3n.exe
    c:\users\admin\appdata\local\temp\._cache_4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3n.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:4188
- - C:\Users\Admin\AppData\Local\icsys.icn.exe
    C:\Users\Admin\AppData\Local\icsys.icn.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3316
- 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:3728
- - 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:2724
  - - \??\c:\users\admin\appdata\local\temp\._cache_synaptics.exe
      c:\users\admin\appdata\local\temp\._cache_synaptics.exe InjUpdate
      4⤵
      Executes dropped EXE
      Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:3168
  - - C:\Users\Admin\AppData\Local\icsys.icn.exe
      C:\Users\Admin\AppData\Local\icsys.icn.exe
      4⤵
      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:4988
    - - \??\c:\windows\system\explorer.exe
        
        c:\windows\system\explorer.exe
        5⤵
        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:2940
      - \??\c:\windows\system\spoolsv.exe
        
        c:\windows\system\spoolsv.exe SE
        6⤵
        Executes dropped EXE
        Drops file in Windows directory
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4024
        
        \??\c:\windows\system\svchost.exe
        
        c:\windows\system\svchost.exe
        7⤵
        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:216
        
        \??\c:\windows\system\spoolsv.exe
        
        c:\windows\system\spoolsv.exe PR
        8⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:2104
        
        C:\Windows\SysWOW64\at.exe
        
        at 23:34 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:4288
        
        C:\Windows\SysWOW64\at.exe
        
        at 23:35 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:1576

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:1552

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