Analysis Overview
SHA256
5e1338efd0474116d2e8b44b979af06595fc0bf0f749a0bc2e7a099245dc82d5
Threat Level: Known bad
The file a40cef77c32e47d2afed6f2ad797e6a0_NeikiAnalytics was found to be: Known bad.
Malicious Activity Summary
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 System32 directory
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-13 07:03
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-13 07:03
Reported
2024-05-13 07:06
Platform
win7-20231129-en
Max time kernel
150s
Max time network
123s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\userinit.exe" | \??\c:\windows\userinit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\userinit.exe" | \??\c:\windows\swchost.exe | N/A |
Modifies visiblity of hidden/system files in Explorer
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | \??\c:\windows\userinit.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | \??\c:\windows\swchost.exe | N/A |
Modifies Installed Components in the registry
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} | \??\c:\windows\swchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Local\\mrsys.exe MR" | \??\c:\windows\swchost.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} | \??\c:\windows\swchost.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} | \??\c:\windows\userinit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Local\\mrsys.exe MR" | \??\c:\windows\userinit.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} | \??\c:\windows\swchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}\StubPath = "C:\\Users\\Admin\\AppData\\Local\\mrsys.exe MR" | \??\c:\windows\swchost.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} | \??\c:\windows\swchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
| N/A | N/A | \??\c:\windows\swchost.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\userinit = "c:\\windows\\userinit.exe RO" | \??\c:\windows\userinit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Swchost = "c:\\windows\\swchost.exe RO" | \??\c:\windows\userinit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\userinit = "c:\\windows\\userinit.exe RO" | \??\c:\windows\swchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Swchost = "c:\\windows\\swchost.exe RO" | \??\c:\windows\swchost.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\system\udsys.exe | \??\c:\windows\userinit.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | \??\c:\windows\userinit.exe | C:\Users\Admin\AppData\Local\Temp\a40cef77c32e47d2afed6f2ad797e6a0_NeikiAnalytics.exe | N/A |
| File opened for modification | \??\c:\windows\spoolsw.exe | \??\c:\windows\userinit.exe | N/A |
| File opened for modification | \??\c:\windows\swchost.exe | \??\c:\windows\spoolsw.exe | N/A |
| File opened for modification | \??\c:\windows\userinit.exe | \??\c:\windows\userinit.exe | N/A |
| File opened for modification | \??\c:\windows\swchost.exe | \??\c:\windows\swchost.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
| N/A | N/A | \??\c:\windows\swchost.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a40cef77c32e47d2afed6f2ad797e6a0_NeikiAnalytics.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a40cef77c32e47d2afed6f2ad797e6a0_NeikiAnalytics.exe | N/A |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
| N/A | N/A | \??\c:\windows\swchost.exe | N/A |
| N/A | N/A | \??\c:\windows\swchost.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a40cef77c32e47d2afed6f2ad797e6a0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\a40cef77c32e47d2afed6f2ad797e6a0_NeikiAnalytics.exe"
\??\c:\windows\userinit.exe
c:\windows\userinit.exe
\??\c:\windows\spoolsw.exe
c:\windows\spoolsw.exe SE
\??\c:\windows\swchost.exe
c:\windows\swchost.exe
\??\c:\windows\spoolsw.exe
c:\windows\spoolsw.exe PR
Network
Files
C:\Windows\userinit.exe
| MD5 | 4cd05fe54e673cc2060770e36f2c853d |
| SHA1 | a8f1a3e4bcf62db6546c4a3a85edb162d1837006 |
| SHA256 | 2711264e25131ef58b42f1ab852364d145699d851bb8f6af8d68cb21fe1b09a0 |
| SHA512 | 667361a6c032fa2ef4aa821a87145c44f94b12dcf7a959ed0b356116419b6af2c4085cfe98e619c9824a3b759ff5c4c9f8271919174824962511102c4d87a98e |
C:\Windows\spoolsw.exe
| MD5 | 590e098355345b163e1b1df035a77424 |
| SHA1 | 3292d737957a240afc4ceaa516fded4e3615a670 |
| SHA256 | ef2de95bcc6358f114039f614e6ae2166d4c1e9685a4fdd62a22d7de282f5dbf |
| SHA512 | 3183a8caef0e616656c7e54362658f4f244afd649b7219dbd30c8ccb0d9d6d2e64109360fccdf95a3ad2ce007ca282ca94be50df36b28fe6b929790c7d90b5a6 |
C:\Windows\swchost.exe
| MD5 | e909b88bf9a72a500b76c8578d7a40ec |
| SHA1 | cbe18fbc77b7dcc4e5ef3c276f6168e50edf09f7 |
| SHA256 | d867938b4067d87bd42e75c080533694523bf9b465e117d4dff69511f260b7c6 |
| SHA512 | 2724154b95eed76a0953b1d679ff48ec6e3e01e056d395d3f5936d0fbd927cfbb7ac4bb35adfcbb6ac6937d2540864dc425b3e24e4b336cfc469abd53bbefcef |
C:\Users\Admin\AppData\Local\mrsys.exe
| MD5 | 3e3ce31a32465ca83c0070197db1435a |
| SHA1 | 1fde904afbc48ac59f7cba5a5128858919bf5e08 |
| SHA256 | 01b5eec87b995237e9ab23e06fc00e4ce00cbed85469483d417f7d924c08bda5 |
| SHA512 | 1b4efe8a9c419855223c1f8bf47c895dccbcea7a4ebeb756ffa82ee9e8a459dfe12c34d0ba4512b71768a177d2ad1e8d29c74a63d57830caf78a67f5e8893013 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-13 07:03
Reported
2024-05-13 07:06
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
150s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\userinit.exe" | \??\c:\windows\userinit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\userinit.exe" | \??\c:\windows\swchost.exe | N/A |
Modifies visiblity of hidden/system files in Explorer
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | \??\c:\windows\userinit.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | \??\c:\windows\swchost.exe | N/A |
Modifies Installed Components in the registry
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} | \??\c:\windows\swchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}\StubPath = "C:\\Users\\Admin\\AppData\\Local\\mrsys.exe MR" | \??\c:\windows\swchost.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} | \??\c:\windows\swchost.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} | \??\c:\windows\swchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Local\\mrsys.exe MR" | \??\c:\windows\swchost.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} | \??\c:\windows\swchost.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} | \??\c:\windows\userinit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Local\\mrsys.exe MR" | \??\c:\windows\userinit.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
| N/A | N/A | \??\c:\windows\swchost.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Swchost = "c:\\windows\\swchost.exe RO" | \??\c:\windows\swchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\userinit = "c:\\windows\\userinit.exe RO" | \??\c:\windows\userinit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Swchost = "c:\\windows\\swchost.exe RO" | \??\c:\windows\userinit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\userinit = "c:\\windows\\userinit.exe RO" | \??\c:\windows\swchost.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\system\udsys.exe | \??\c:\windows\userinit.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | \??\c:\windows\swchost.exe | \??\c:\windows\swchost.exe | N/A |
| File opened for modification | \??\c:\windows\userinit.exe | C:\Users\Admin\AppData\Local\Temp\a40cef77c32e47d2afed6f2ad797e6a0_NeikiAnalytics.exe | N/A |
| File opened for modification | \??\c:\windows\spoolsw.exe | \??\c:\windows\userinit.exe | N/A |
| File opened for modification | \??\c:\windows\swchost.exe | \??\c:\windows\spoolsw.exe | N/A |
| File opened for modification | \??\c:\windows\userinit.exe | \??\c:\windows\userinit.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
| N/A | N/A | \??\c:\windows\swchost.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a40cef77c32e47d2afed6f2ad797e6a0_NeikiAnalytics.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a40cef77c32e47d2afed6f2ad797e6a0_NeikiAnalytics.exe | N/A |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
| N/A | N/A | \??\c:\windows\swchost.exe | N/A |
| N/A | N/A | \??\c:\windows\swchost.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
| N/A | N/A | \??\c:\windows\spoolsw.exe | N/A |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
| N/A | N/A | \??\c:\windows\userinit.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a40cef77c32e47d2afed6f2ad797e6a0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\a40cef77c32e47d2afed6f2ad797e6a0_NeikiAnalytics.exe"
\??\c:\windows\userinit.exe
c:\windows\userinit.exe
\??\c:\windows\spoolsw.exe
c:\windows\spoolsw.exe SE
\??\c:\windows\swchost.exe
c:\windows\swchost.exe
\??\c:\windows\spoolsw.exe
c:\windows\spoolsw.exe PR
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 142.53.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 169.117.168.52.in-addr.arpa | udp |
Files
C:\Windows\userinit.exe
| MD5 | 73318a053b04276cfc2fd369b0a902b6 |
| SHA1 | 9fdbe895d9798c780da87577b0ea53001bfacd35 |
| SHA256 | 3a55bbdfb0949d7801151885f26228017c050de2ff2ac3e50c1dc2a73a2b3570 |
| SHA512 | b88635ad2f6df6be11d3f49f78f96d7811522893e1828bfa0ef9ba519cc6e80d2c1cc4aa697cec0179443c57135cf93a57f8ad0f949ef8632b11ace6395e5594 |
C:\Windows\spoolsw.exe
| MD5 | 1f7faa7d124afba20a8ff5b9ab78323e |
| SHA1 | 6b2479a1071141f3a5fd13d836fca50d5222e071 |
| SHA256 | 88232cec2ba91682543b2f058772d4a89d0ffc5dcb0b24f1528ced1f2bdf408f |
| SHA512 | 0717dface8c763a6b88efc51e3dfa26655c8bf0de0f6cf5efd60a08fddaf8b348b3247f5496341032d821e5a767be68a21ff5b8e7d87b9b7c01d8766823948a5 |
C:\Windows\swchost.exe
| MD5 | 524e624accd2a24a1125705b67e8240e |
| SHA1 | 73ffcaf92dabdd9e61d8f9601d892c4f383429de |
| SHA256 | bc631bcd6dd066ce136d9e22765ee4e240e9e97b8db2af41044b63c53edba3a1 |
| SHA512 | fe30ea9cb28c9be331ebdad2348d25a0644fda154641a61180407483b9a2f88687d0049fe51333e4bca34aa2d530eb26db583fe2d67618609e7030ba2c7f0651 |
C:\Users\Admin\AppData\Local\mrsys.exe
| MD5 | c6870633b46a05208b2845f9595a8fbf |
| SHA1 | a0c945a917a86fc8ecc9aa582e95223978dd512a |
| SHA256 | c198ef806df6c20e8446a470b10fdd4d554f57a68c7569fb730b3a707f7f76a9 |
| SHA512 | a5a4aab4a2bf514eac121e8ce92b376387bf666b554027a0d1d0188f861bdf3ebf230f000119da778b1d219e88bbc2de841d7d6209def87b9c90ed82c85b1bc0 |