xred | 4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb

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}	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
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

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	4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 11 IoCs

pid	Process
2708	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
964	Synaptics.exe
4816	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
5080	._cache_Synaptics.exe
4604	._cache_synaptics.exe
1832	icsys.icn.exe
2028	explorer.exe
3756	spoolsv.exe
4528	svchost.exe
2180	spoolsv.exe
2004	icsys.icn.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\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.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
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

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
4816	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
4604	._cache_synaptics.exe
4816	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
4604	._cache_synaptics.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 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	Synaptics.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	at.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.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	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
832	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1832	icsys.icn.exe
1832	icsys.icn.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
4528	svchost.exe
4528	svchost.exe
4528	svchost.exe
4528	svchost.exe
4528	svchost.exe
2028	explorer.exe
4528	svchost.exe
2028	explorer.exe
2028	explorer.exe
4528	svchost.exe
4528	svchost.exe
2028	explorer.exe
2028	explorer.exe
4528	svchost.exe
2028	explorer.exe
4528	svchost.exe
4528	svchost.exe
2028	explorer.exe
4528	svchost.exe
2028	explorer.exe
2028	explorer.exe
4528	svchost.exe
2028	explorer.exe
4528	svchost.exe
2028	explorer.exe
4528	svchost.exe
2028	explorer.exe
4528	svchost.exe
4528	svchost.exe
2028	explorer.exe
4528	svchost.exe
2028	explorer.exe
2028	explorer.exe
2028	explorer.exe
4528	svchost.exe
4528	svchost.exe
4528	svchost.exe
2028	explorer.exe
2028	explorer.exe
4528	svchost.exe
2028	explorer.exe
4528	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2028	explorer.exe
4528	svchost.exe

Suspicious use of SetWindowsHookEx 24 IoCs

pid	Process
2708	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
2708	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
5080	._cache_Synaptics.exe
5080	._cache_Synaptics.exe
832	EXCEL.EXE
832	EXCEL.EXE
1832	icsys.icn.exe
832	EXCEL.EXE
1832	icsys.icn.exe
832	EXCEL.EXE
2028	explorer.exe
2028	explorer.exe
3756	spoolsv.exe
3756	spoolsv.exe
4528	svchost.exe
4528	svchost.exe
2180	spoolsv.exe
2180	spoolsv.exe
2028	explorer.exe
2028	explorer.exe
2004	icsys.icn.exe
2004	icsys.icn.exe
832	EXCEL.EXE
832	EXCEL.EXE

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 2708	1488	4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe	83
PID 1488 wrote to memory of 2708	1488	4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe	83
PID 1488 wrote to memory of 2708	1488	4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe	83
PID 1488 wrote to memory of 964	1488	4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe	84
PID 1488 wrote to memory of 964	1488	4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe	84
PID 1488 wrote to memory of 964	1488	4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe	84
PID 2708 wrote to memory of 4816	2708	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe	85
PID 2708 wrote to memory of 4816	2708	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe	85
PID 964 wrote to memory of 5080	964	Synaptics.exe	86
PID 964 wrote to memory of 5080	964	Synaptics.exe	86
PID 964 wrote to memory of 5080	964	Synaptics.exe	86
PID 5080 wrote to memory of 4604	5080	._cache_Synaptics.exe	88
PID 5080 wrote to memory of 4604	5080	._cache_Synaptics.exe	88
PID 5080 wrote to memory of 1832	5080	._cache_Synaptics.exe	90
PID 5080 wrote to memory of 1832	5080	._cache_Synaptics.exe	90
PID 5080 wrote to memory of 1832	5080	._cache_Synaptics.exe	90
PID 1832 wrote to memory of 2028	1832	icsys.icn.exe	91
PID 1832 wrote to memory of 2028	1832	icsys.icn.exe	91
PID 1832 wrote to memory of 2028	1832	icsys.icn.exe	91
PID 2028 wrote to memory of 3756	2028	explorer.exe	92
PID 2028 wrote to memory of 3756	2028	explorer.exe	92
PID 2028 wrote to memory of 3756	2028	explorer.exe	92
PID 3756 wrote to memory of 4528	3756	spoolsv.exe	93
PID 3756 wrote to memory of 4528	3756	spoolsv.exe	93
PID 3756 wrote to memory of 4528	3756	spoolsv.exe	93
PID 4528 wrote to memory of 2180	4528	svchost.exe	94
PID 4528 wrote to memory of 2180	4528	svchost.exe	94
PID 4528 wrote to memory of 2180	4528	svchost.exe	94
PID 2708 wrote to memory of 2004	2708	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe	95
PID 2708 wrote to memory of 2004	2708	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe	95
PID 2708 wrote to memory of 2004	2708	._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe	95
PID 4528 wrote to memory of 4464	4528	svchost.exe	96
PID 4528 wrote to memory of 4464	4528	svchost.exe	96
PID 4528 wrote to memory of 4464	4528	svchost.exe	96
PID 4528 wrote to memory of 3940	4528	svchost.exe	116
PID 4528 wrote to memory of 3940	4528	svchost.exe	116
PID 4528 wrote to memory of 3940	4528	svchost.exe	116

C:\Users\Admin\AppData\Local\Temp\4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
"C:\Users\Admin\AppData\Local\Temp\4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.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:1488
- C:\Users\Admin\AppData\Local\Temp\._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2708
- - \??\c:\users\admin\appdata\local\temp\._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
    c:\users\admin\appdata\local\temp\._cache_4b07f194b3dec3f31d74bf45b445502f79bd76956c5cb2e4c30eea0aa0efeecb.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:4816
- - 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:2004
- 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:964
- - 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:5080
  - - \??\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:4604
  - - 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:1832
    - - \??\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:2028
      - \??\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:3756
        
        \??\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:4528
        
        \??\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:2180
        
        C:\Windows\SysWOW64\at.exe
        
        at 20:34 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:4464
        
        C:\Windows\SysWOW64\at.exe
        
        at 20:35 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:3940

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:832

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