Analysis Overview
SHA256
de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c
Threat Level: Known bad
The file de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c was found to be: Known bad.
Malicious Activity Summary
NanoCore
Drops startup file
Adds Run key to start application
Checks whether UAC is enabled
Suspicious use of SetThreadContext
AutoIT Executable
Drops file in Program Files directory
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of FindShellTrayWindow
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Scheduled Task/Job: Scheduled Task
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-05 04:08
Signatures
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-05 04:08
Reported
2024-08-05 04:11
Platform
win7-20240704-en
Max time kernel
137s
Max time network
153s
Command Line
Signatures
NanoCore
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PasswordOnWakeSettingFlyout.url | C:\Users\Admin\AppData\Local\Temp\de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Monitor = "C:\\Program Files (x86)\\SMTP Monitor\\smtpmon.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2056 set thread context of 2884 | N/A | C:\Users\Admin\AppData\Local\Temp\de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\SMTP Monitor\smtpmon.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| File opened for modification | C:\Program Files (x86)\SMTP Monitor\smtpmon.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\schtasks.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\schtasks.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c.exe
"C:\Users\Admin\AppData\Local\Temp\de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB1A3.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB2CC.tmp"
Network
| Country | Destination | Domain | Proto |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp |
Files
memory/2056-0-0x00000000005E0000-0x00000000005E1000-memory.dmp
memory/2884-1-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2884-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2884-9-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2884-8-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2884-2-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2884-10-0x0000000073BD2000-0x0000000073BD4000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpB1A3.tmp
| MD5 | c6f0625bf4c1cdfb699980c9243d3b22 |
| SHA1 | 43de1fe580576935516327f17b5da0c656c72851 |
| SHA256 | 8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576 |
| SHA512 | 9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969 |
C:\Users\Admin\AppData\Local\Temp\tmpB2CC.tmp
| MD5 | ffa9e95100598072ca693c672478895f |
| SHA1 | 518514c3112c51b2b21d36d3262bec72e83d025d |
| SHA256 | 1e45d509d390405f93e9f3b64ff497e61cf9bf791c015dde4499184b7a681eb3 |
| SHA512 | 010d14ae46a23cef14cf1de9a06c8e6ff26ca86c10ebdd3d5f16f4ffbeacc3df7ca18fafda097e00bf747fb997c5c4f9d62646e47a3b501da7c630689c28d6df |
memory/2884-21-0x0000000073BD2000-0x0000000073BD4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-05 04:08
Reported
2024-08-05 04:10
Platform
win10v2004-20240802-en
Max time kernel
135s
Max time network
143s
Command Line
Signatures
NanoCore
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PasswordOnWakeSettingFlyout.url | C:\Users\Admin\AppData\Local\Temp\de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NAS Monitor = "C:\\Program Files (x86)\\NAS Monitor\\nasmon.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 952 set thread context of 1504 | N/A | C:\Users\Admin\AppData\Local\Temp\de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\NAS Monitor\nasmon.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| File opened for modification | C:\Program Files (x86)\NAS Monitor\nasmon.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\schtasks.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\schtasks.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c.exe
"C:\Users\Admin\AppData\Local\Temp\de168d2ec7ece474cad40f9eaca38103dd628adf0e177ecae5c7399ac6b09a5c.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "NAS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC975.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "NAS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC9C4.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| NL | 213.184.126.143:1993 | tcp | |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp | |
| US | 8.8.8.8:53 | 63.141.182.52.in-addr.arpa | udp |
Files
memory/1504-1-0x0000000000400000-0x0000000000438000-memory.dmp
memory/952-5-0x0000000001000000-0x0000000001001000-memory.dmp
memory/1504-6-0x0000000074102000-0x0000000074103000-memory.dmp
memory/1504-7-0x0000000074100000-0x00000000746B1000-memory.dmp
memory/1504-8-0x0000000074100000-0x00000000746B1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpC975.tmp
| MD5 | c6f0625bf4c1cdfb699980c9243d3b22 |
| SHA1 | 43de1fe580576935516327f17b5da0c656c72851 |
| SHA256 | 8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576 |
| SHA512 | 9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969 |
C:\Users\Admin\AppData\Local\Temp\tmpC9C4.tmp
| MD5 | 3144131f2fe1c35ad2aafff167a26f59 |
| SHA1 | 959879de38aed11bc08b7725500d2c8c953e80bf |
| SHA256 | d20aeda9cadd332268afc89cbee76f297b00f061bf69a2f558a8d7657e4c41d7 |
| SHA512 | 27a07c8f953cc4fde9ec348d3f5c4621ab56ff281b778bc7ac95dd808d5f0eea6969c5e4662efc00a6416c8bcf4d8e3892be5c99e603e36f8aa49d2a957206fb |
memory/1504-19-0x0000000074102000-0x0000000074103000-memory.dmp
memory/1504-20-0x0000000074100000-0x00000000746B1000-memory.dmp