Analysis Overview
SHA256
93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d
Threat Level: Known bad
The file 93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d 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
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-13 22:31
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 22:31
Reported
2024-08-13 22:34
Platform
win7-20240704-en
Max time kernel
136s
Max time network
149s
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\93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d.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 2164 set thread context of 2760 | N/A | C:\Users\Admin\AppData\Local\Temp\93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d.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:\Users\Admin\AppData\Local\Temp\93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d.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 |
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\93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d.exe
"C:\Users\Admin\AppData\Local\Temp\93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d.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\tmp5207.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp536E.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/2164-0-0x00000000005B0000-0x00000000005B1000-memory.dmp
memory/2760-1-0x0000000000090000-0x00000000000C8000-memory.dmp
memory/2760-2-0x0000000000090000-0x00000000000C8000-memory.dmp
memory/2760-9-0x0000000000090000-0x00000000000C8000-memory.dmp
memory/2760-8-0x0000000000090000-0x00000000000C8000-memory.dmp
memory/2760-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2760-10-0x0000000074432000-0x0000000074434000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp5207.tmp
| MD5 | c6f0625bf4c1cdfb699980c9243d3b22 |
| SHA1 | 43de1fe580576935516327f17b5da0c656c72851 |
| SHA256 | 8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576 |
| SHA512 | 9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969 |
C:\Users\Admin\AppData\Local\Temp\tmp536E.tmp
| MD5 | ffa9e95100598072ca693c672478895f |
| SHA1 | 518514c3112c51b2b21d36d3262bec72e83d025d |
| SHA256 | 1e45d509d390405f93e9f3b64ff497e61cf9bf791c015dde4499184b7a681eb3 |
| SHA512 | 010d14ae46a23cef14cf1de9a06c8e6ff26ca86c10ebdd3d5f16f4ffbeacc3df7ca18fafda097e00bf747fb997c5c4f9d62646e47a3b501da7c630689c28d6df |
memory/2760-21-0x0000000074432000-0x0000000074434000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-13 22:31
Reported
2024-08-13 22:34
Platform
win10v2004-20240802-en
Max time kernel
140s
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\93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DNS Monitor = "C:\\Program Files (x86)\\DNS Monitor\\dnsmon.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 3904 set thread context of 4832 | N/A | C:\Users\Admin\AppData\Local\Temp\93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d.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)\DNS Monitor\dnsmon.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| File opened for modification | C:\Program Files (x86)\DNS Monitor\dnsmon.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\93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d.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\93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d.exe
"C:\Users\Admin\AppData\Local\Temp\93dca55303be7695ef1bd5347fe6f9ad727bf90b46e688796465569ada325d7d.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 "DNS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE579.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DNS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE5D8.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp | |
| US | 8.8.8.8:53 | 57.169.31.20.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/4832-1-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3904-5-0x0000000001730000-0x0000000001731000-memory.dmp
memory/4832-6-0x0000000073A12000-0x0000000073A13000-memory.dmp
memory/4832-7-0x0000000073A10000-0x0000000073FC1000-memory.dmp
memory/4832-8-0x0000000073A10000-0x0000000073FC1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpE579.tmp
| MD5 | c6f0625bf4c1cdfb699980c9243d3b22 |
| SHA1 | 43de1fe580576935516327f17b5da0c656c72851 |
| SHA256 | 8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576 |
| SHA512 | 9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969 |
C:\Users\Admin\AppData\Local\Temp\tmpE5D8.tmp
| MD5 | 7620b805f7bc12c79e126656c858d0e0 |
| SHA1 | 89f09b8b4ef1fc421ddf5ed0cbbe012fab7fd666 |
| SHA256 | 4d6ea014d135bdc4a5fd4281ce705672561b0279deab4302e06cbfe95e1080a6 |
| SHA512 | b02ac735c98b20020251a23ffa1b0308ad3a1c99593a15a8020d742472b0d5c36caa31c6ca2372e88cfd3b6792206ea7920162c2a33c83da24f0098c0513f562 |
memory/4832-19-0x0000000073A10000-0x0000000073FC1000-memory.dmp
memory/4832-20-0x0000000073A12000-0x0000000073A13000-memory.dmp
memory/4832-21-0x0000000073A10000-0x0000000073FC1000-memory.dmp