f5c53268ac1fa948e4521bee71c8476411abe8a299e29436ed077c26fb0fa633

Processes:

explorer.exesvchost.exe

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

Processes:

explorer.exesvchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Modifies Installed Components in the registry 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

svchost.exeexplorer.exe

description	ioc	process
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
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

Executes dropped EXE 4 IoCs

Processes:

explorer.exespoolsv.exesvchost.exespoolsv.exe

pid process

2120 explorer.exe
2536 spoolsv.exe
512 svchost.exe
840 spoolsv.exe

pid	process
2120	explorer.exe
2536	spoolsv.exe
512	svchost.exe
840	spoolsv.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

explorer.exesvchost.exe

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

Drops file in Windows directory 6 IoCs

Processes:

explorer.exe78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exespoolsv.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\system\udsys.exe	explorer.exe
File opened for modification	\??\c:\windows\system\explorer.exe	78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.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
File opened for modification	\??\c:\windows\system\svchost.exe	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exeexplorer.exesvchost.exe

pid	process
3244	78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exe
3244	78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exe
2120	explorer.exe
2120	explorer.exe
2120	explorer.exe
2120	explorer.exe
2120	explorer.exe
2120	explorer.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
512	svchost.exe
512	svchost.exe
512	svchost.exe
2120	explorer.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
512	svchost.exe
2120	explorer.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
2120	explorer.exe
512	svchost.exe
512	svchost.exe
2120	explorer.exe
2120	explorer.exe
512	svchost.exe
512	svchost.exe
2120	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

explorer.exesvchost.exe

pid process

2120 explorer.exe
512 svchost.exe

pid	process
2120	explorer.exe
512	svchost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exeexplorer.exespoolsv.exesvchost.exespoolsv.exe

pid	process
3244	78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exe
3244	78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exe
2120	explorer.exe
2120	explorer.exe
2536	spoolsv.exe
2536	spoolsv.exe
512	svchost.exe
512	svchost.exe
840	spoolsv.exe
840	spoolsv.exe
2120	explorer.exe
2120	explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exeexplorer.exespoolsv.exesvchost.exe

description	pid	process	target process
PID 3244 wrote to memory of 2120	3244	78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exe	explorer.exe
PID 3244 wrote to memory of 2120	3244	78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exe	explorer.exe
PID 3244 wrote to memory of 2120	3244	78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exe	explorer.exe
PID 2120 wrote to memory of 2536	2120	explorer.exe	spoolsv.exe
PID 2120 wrote to memory of 2536	2120	explorer.exe	spoolsv.exe
PID 2120 wrote to memory of 2536	2120	explorer.exe	spoolsv.exe
PID 2536 wrote to memory of 512	2536	spoolsv.exe	svchost.exe
PID 2536 wrote to memory of 512	2536	spoolsv.exe	svchost.exe
PID 2536 wrote to memory of 512	2536	spoolsv.exe	svchost.exe
PID 512 wrote to memory of 840	512	svchost.exe	spoolsv.exe
PID 512 wrote to memory of 840	512	svchost.exe	spoolsv.exe
PID 512 wrote to memory of 840	512	svchost.exe	spoolsv.exe
PID 512 wrote to memory of 3456	512	svchost.exe	at.exe
PID 512 wrote to memory of 3456	512	svchost.exe	at.exe
PID 512 wrote to memory of 3456	512	svchost.exe	at.exe
PID 512 wrote to memory of 4872	512	svchost.exe	at.exe
PID 512 wrote to memory of 4872	512	svchost.exe	at.exe
PID 512 wrote to memory of 4872	512	svchost.exe	at.exe
PID 512 wrote to memory of 2440	512	svchost.exe	at.exe
PID 512 wrote to memory of 2440	512	svchost.exe	at.exe
PID 512 wrote to memory of 2440	512	svchost.exe	at.exe

C:\Users\Admin\AppData\Local\Temp\78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\78be1bd781eda78d3bf9498afd08cb20_NeikiAnalytics.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3244

\??\c:\windows\system\explorer.exe
c:\windows\system\explorer.exe
2⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Modifies Installed Components in the registry
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2120

\??\c:\windows\system\spoolsv.exe
c:\windows\system\spoolsv.exe SE
3⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2536

\??\c:\windows\system\svchost.exe
c:\windows\system\svchost.exe
4⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Modifies Installed Components in the registry
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:512

\??\c:\windows\system\spoolsv.exe
c:\windows\system\spoolsv.exe PR
5⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:840

C:\Windows\SysWOW64\at.exe
at 02:35 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
5⤵
PID:3456

C:\Windows\SysWOW64\at.exe
at 02:36 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
5⤵
PID:4872

C:\Windows\SysWOW64\at.exe
at 02:37 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
5⤵
PID:2440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

2

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

2

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery