725170bf2391fec3b2c4e9140fe18e0ec462f5e3233d047412ec61f9217eba32

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 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
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

Executes dropped EXE 4 IoCs

Processes:

explorer.exespoolsv.exesvchost.exespoolsv.exe

pid process

5920 explorer.exe
1356 spoolsv.exe
1676 svchost.exe
5628 spoolsv.exe

pid	process
5920	explorer.exe
1356	spoolsv.exe
1676	svchost.exe
5628	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:

37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exeexplorer.exespoolsv.exesvchost.exe

description	ioc	process
File opened for modification	\??\c:\windows\system\explorer.exe	37fb2a09a4a643cace8f4676cc838a70_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
File opened for modification	C:\Windows\system\udsys.exe	explorer.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:

37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exeexplorer.exesvchost.exe

pid	process
1124	37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exe
1124	37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exe
5920	explorer.exe
5920	explorer.exe
5920	explorer.exe
5920	explorer.exe
5920	explorer.exe
5920	explorer.exe
5920	explorer.exe
5920	explorer.exe
1676	svchost.exe
1676	svchost.exe
1676	svchost.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
1676	svchost.exe
5920	explorer.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
1676	svchost.exe
5920	explorer.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe
5920	explorer.exe
1676	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

explorer.exesvchost.exe

pid process

5920 explorer.exe
1676 svchost.exe

pid	process
5920	explorer.exe
1676	svchost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exeexplorer.exespoolsv.exesvchost.exespoolsv.exe

pid	process
1124	37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exe
1124	37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exe
5920	explorer.exe
5920	explorer.exe
1356	spoolsv.exe
1356	spoolsv.exe
1676	svchost.exe
1676	svchost.exe
5628	spoolsv.exe
5628	spoolsv.exe
5920	explorer.exe
5920	explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exeexplorer.exespoolsv.exesvchost.exe

description	pid	process	target process
PID 1124 wrote to memory of 5920	1124	37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exe	explorer.exe
PID 1124 wrote to memory of 5920	1124	37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exe	explorer.exe
PID 1124 wrote to memory of 5920	1124	37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exe	explorer.exe
PID 5920 wrote to memory of 1356	5920	explorer.exe	spoolsv.exe
PID 5920 wrote to memory of 1356	5920	explorer.exe	spoolsv.exe
PID 5920 wrote to memory of 1356	5920	explorer.exe	spoolsv.exe
PID 1356 wrote to memory of 1676	1356	spoolsv.exe	svchost.exe
PID 1356 wrote to memory of 1676	1356	spoolsv.exe	svchost.exe
PID 1356 wrote to memory of 1676	1356	spoolsv.exe	svchost.exe
PID 1676 wrote to memory of 5628	1676	svchost.exe	spoolsv.exe
PID 1676 wrote to memory of 5628	1676	svchost.exe	spoolsv.exe
PID 1676 wrote to memory of 5628	1676	svchost.exe	spoolsv.exe
PID 1676 wrote to memory of 1832	1676	svchost.exe	at.exe
PID 1676 wrote to memory of 1832	1676	svchost.exe	at.exe
PID 1676 wrote to memory of 1832	1676	svchost.exe	at.exe
PID 1676 wrote to memory of 3348	1676	svchost.exe	at.exe
PID 1676 wrote to memory of 3348	1676	svchost.exe	at.exe
PID 1676 wrote to memory of 3348	1676	svchost.exe	at.exe
PID 1676 wrote to memory of 2852	1676	svchost.exe	at.exe
PID 1676 wrote to memory of 2852	1676	svchost.exe	at.exe
PID 1676 wrote to memory of 2852	1676	svchost.exe	at.exe

C:\Users\Admin\AppData\Local\Temp\37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\37fb2a09a4a643cace8f4676cc838a70_NeikiAnalytics.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1124

\??\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:5920

\??\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:1356

\??\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:1676

\??\c:\windows\system\spoolsv.exe
c:\windows\system\spoolsv.exe PR
5⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:5628

C:\Windows\SysWOW64\at.exe
at 20:49 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
5⤵
PID:1832

C:\Windows\SysWOW64\at.exe
at 20:50 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
5⤵
PID:3348

C:\Windows\SysWOW64\at.exe
at 20:51 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
5⤵
PID:2852

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