dc04c2065da561945a3b2986f24f0bc26ec4c750fd44fc9b4c4ffe561435f2d0

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-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\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\{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
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

Executes dropped EXE 4 IoCs

Processes:

explorer.exespoolsv.exesvchost.exespoolsv.exe

pid process

3696 explorer.exe
4832 spoolsv.exe
4612 svchost.exe
532 spoolsv.exe

pid	process
3696	explorer.exe
4832	spoolsv.exe
4612	svchost.exe
532	spoolsv.exe

UPX packed file 12 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/1176-0-0x0000000000400000-0x0000000000435000-memory.dmp	upx
C:\Windows\System\explorer.exe	upx
behavioral2/memory/3696-9-0x0000000000400000-0x0000000000435000-memory.dmp	upx
C:\Windows\System\spoolsv.exe	upx
C:\Windows\System\svchost.exe	upx
behavioral2/memory/532-34-0x0000000000400000-0x0000000000435000-memory.dmp	upx
behavioral2/memory/1176-39-0x0000000000400000-0x0000000000435000-memory.dmp	upx
behavioral2/memory/4832-37-0x0000000000400000-0x0000000000435000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\mrsys.exe	upx
behavioral2/memory/3696-41-0x0000000000400000-0x0000000000435000-memory.dmp	upx
behavioral2/memory/4612-42-0x0000000000400000-0x0000000000435000-memory.dmp	upx
behavioral2/memory/3696-51-0x0000000000400000-0x0000000000435000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

svchost.exeexplorer.exe

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\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

Processes:

explorer.exe67ef27eaa7699822a686f8e37c63a1a0_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	67ef27eaa7699822a686f8e37c63a1a0_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:

67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exeexplorer.exesvchost.exe

pid	process
1176	67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exe
1176	67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exe
3696	explorer.exe
3696	explorer.exe
3696	explorer.exe
3696	explorer.exe
3696	explorer.exe
3696	explorer.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
4612	svchost.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
3696	explorer.exe
4612	svchost.exe
3696	explorer.exe
4612	svchost.exe
4612	svchost.exe
3696	explorer.exe
3696	explorer.exe
4612	svchost.exe
4612	svchost.exe
4612	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

explorer.exesvchost.exe

pid process

3696 explorer.exe
4612 svchost.exe

pid	process
3696	explorer.exe
4612	svchost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exeexplorer.exespoolsv.exesvchost.exespoolsv.exe

pid	process
1176	67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exe
1176	67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exe
3696	explorer.exe
3696	explorer.exe
4832	spoolsv.exe
4832	spoolsv.exe
4612	svchost.exe
4612	svchost.exe
532	spoolsv.exe
532	spoolsv.exe
3696	explorer.exe
3696	explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exeexplorer.exespoolsv.exesvchost.exe

description	pid	process	target process
PID 1176 wrote to memory of 3696	1176	67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exe	explorer.exe
PID 1176 wrote to memory of 3696	1176	67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exe	explorer.exe
PID 1176 wrote to memory of 3696	1176	67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exe	explorer.exe
PID 3696 wrote to memory of 4832	3696	explorer.exe	spoolsv.exe
PID 3696 wrote to memory of 4832	3696	explorer.exe	spoolsv.exe
PID 3696 wrote to memory of 4832	3696	explorer.exe	spoolsv.exe
PID 4832 wrote to memory of 4612	4832	spoolsv.exe	svchost.exe
PID 4832 wrote to memory of 4612	4832	spoolsv.exe	svchost.exe
PID 4832 wrote to memory of 4612	4832	spoolsv.exe	svchost.exe
PID 4612 wrote to memory of 532	4612	svchost.exe	spoolsv.exe
PID 4612 wrote to memory of 532	4612	svchost.exe	spoolsv.exe
PID 4612 wrote to memory of 532	4612	svchost.exe	spoolsv.exe
PID 4612 wrote to memory of 4524	4612	svchost.exe	at.exe
PID 4612 wrote to memory of 4524	4612	svchost.exe	at.exe
PID 4612 wrote to memory of 4524	4612	svchost.exe	at.exe
PID 4612 wrote to memory of 4904	4612	svchost.exe	at.exe
PID 4612 wrote to memory of 4904	4612	svchost.exe	at.exe
PID 4612 wrote to memory of 4904	4612	svchost.exe	at.exe
PID 4612 wrote to memory of 1608	4612	svchost.exe	at.exe
PID 4612 wrote to memory of 1608	4612	svchost.exe	at.exe
PID 4612 wrote to memory of 1608	4612	svchost.exe	at.exe

C:\Users\Admin\AppData\Local\Temp\67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\67ef27eaa7699822a686f8e37c63a1a0_NeikiAnalytics.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1176

\??\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:3696

\??\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:4832

\??\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:4612

\??\c:\windows\system\spoolsv.exe
c:\windows\system\spoolsv.exe PR
5⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:532

C:\Windows\SysWOW64\at.exe
at 01:02 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
5⤵
PID:4524

C:\Windows\SysWOW64\at.exe
at 01:03 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
5⤵
PID:4904

C:\Windows\SysWOW64\at.exe
at 01:04 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
5⤵
PID:1608

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