Analysis Overview
SHA256
fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10
Threat Level: Known bad
The file fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10 was found to be: Known bad.
Malicious Activity Summary
NanoCore
Drops startup file
Checks whether UAC is enabled
Adds Run key to start application
Suspicious use of SetThreadContext
AutoIT Executable
Drops file in Program Files directory
Unsigned PE
System Location Discovery: System Language Discovery
Scheduled Task/Job: Scheduled Task
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-13 02:06
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
2024-08-13 02:06
Reported
2024-08-13 02:09
Platform
win7-20240704-en
Max time kernel
134s
Max time network
144s
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\fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.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 1292 set thread context of 2504 | N/A | C:\Users\Admin\AppData\Local\Temp\fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10.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)\ARP Host\arphost.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| File opened for modification | C:\Program Files (x86)\ARP Host\arphost.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:\Users\Admin\AppData\Local\Temp\fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10.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 |
| 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 |
| 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\fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10.exe
"C:\Users\Admin\AppData\Local\Temp\fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10.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 "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp581F.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp587D.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/1292-0-0x00000000001A0000-0x00000000001A1000-memory.dmp
memory/2504-1-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2504-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2504-9-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2504-8-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2504-2-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2504-10-0x0000000074212000-0x0000000074214000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp581F.tmp
| MD5 | c6f0625bf4c1cdfb699980c9243d3b22 |
| SHA1 | 43de1fe580576935516327f17b5da0c656c72851 |
| SHA256 | 8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576 |
| SHA512 | 9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969 |
C:\Users\Admin\AppData\Local\Temp\tmp587D.tmp
| MD5 | 447ab194ab36cb1d20078d80e502b1b2 |
| SHA1 | a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0 |
| SHA256 | 8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5 |
| SHA512 | 49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327 |
memory/2504-21-0x0000000074212000-0x0000000074214000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-13 02:06
Reported
2024-08-13 02:09
Platform
win10v2004-20240802-en
Max time kernel
138s
Max time network
145s
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\fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10.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 4900 set thread context of 1520 | N/A | C:\Users\Admin\AppData\Local\Temp\fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10.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:\Users\Admin\AppData\Local\Temp\fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10.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 |
| 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 |
| 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\fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10.exe
"C:\Users\Admin\AppData\Local\Temp\fb61a45129971e26464bce0bdacfd1033c3197fda59571e0d339edb2327bde10.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\tmp947B.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "NAS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp94CA.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp | |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp |
Files
memory/4900-0-0x0000000000DB0000-0x0000000000DB1000-memory.dmp
memory/1520-2-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1520-6-0x0000000074302000-0x0000000074303000-memory.dmp
memory/1520-7-0x0000000074300000-0x00000000748B1000-memory.dmp
memory/1520-8-0x0000000074300000-0x00000000748B1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp947B.tmp
| MD5 | c6f0625bf4c1cdfb699980c9243d3b22 |
| SHA1 | 43de1fe580576935516327f17b5da0c656c72851 |
| SHA256 | 8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576 |
| SHA512 | 9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969 |
C:\Users\Admin\AppData\Local\Temp\tmp94CA.tmp
| MD5 | 3144131f2fe1c35ad2aafff167a26f59 |
| SHA1 | 959879de38aed11bc08b7725500d2c8c953e80bf |
| SHA256 | d20aeda9cadd332268afc89cbee76f297b00f061bf69a2f558a8d7657e4c41d7 |
| SHA512 | 27a07c8f953cc4fde9ec348d3f5c4621ab56ff281b778bc7ac95dd808d5f0eea6969c5e4662efc00a6416c8bcf4d8e3892be5c99e603e36f8aa49d2a957206fb |
memory/1520-19-0x0000000074302000-0x0000000074303000-memory.dmp
memory/1520-20-0x0000000074300000-0x00000000748B1000-memory.dmp