Analysis Overview
SHA256
09bc8f508d13b32a88d742229c4d33cbec3399c54e6259c6a0f8d499e6f229a5
Threat Level: Known bad
The file 09bc8f508d13b32a88d742229c4d33cbec3399c54e6259c6a0f8d499e6f229a5 was found to be: Known bad.
Malicious Activity Summary
NanoCore
UPX dump on OEP (original entry point)
UPX dump on OEP (original entry point)
UPX packed file
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
Suspicious use of AdjustPrivilegeToken
Suspicious use of SendNotifyMessage
Suspicious use of FindShellTrayWindow
Suspicious behavior: GetForegroundWindowSpam
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-18 18:27
Signatures
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-18 18:27
Reported
2024-05-18 18:29
Platform
win7-20240221-en
Max time kernel
134s
Max time network
145s
Command Line
Signatures
NanoCore
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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\09bc8f508d13b32a88d742229c4d33cbec3399c54e6259c6a0f8d499e6f229a5.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Host = "C:\\Program Files (x86)\\DHCP Host\\dhcphost.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 |
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2176 set thread context of 2268 | N/A | C:\Users\Admin\AppData\Local\Temp\09bc8f508d13b32a88d742229c4d33cbec3399c54e6259c6a0f8d499e6f229a5.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)\DHCP Host\dhcphost.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| File opened for modification | C:\Program Files (x86)\DHCP Host\dhcphost.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Creates scheduled task(s)
| 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\09bc8f508d13b32a88d742229c4d33cbec3399c54e6259c6a0f8d499e6f229a5.exe
"C:\Users\Admin\AppData\Local\Temp\09bc8f508d13b32a88d742229c4d33cbec3399c54e6259c6a0f8d499e6f229a5.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 "DHCP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp17D4.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DHCP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1823.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/2176-0-0x0000000000B50000-0x0000000000C98000-memory.dmp
memory/2176-1-0x0000000000B50000-0x0000000000C98000-memory.dmp
memory/2176-2-0x0000000000B50000-0x0000000000C98000-memory.dmp
memory/2176-3-0x0000000000B50000-0x0000000000C98000-memory.dmp
memory/2176-4-0x0000000000B50000-0x0000000000C98000-memory.dmp
memory/2176-5-0x0000000000B50000-0x0000000000C98000-memory.dmp
memory/2176-6-0x0000000000B50000-0x0000000000C98000-memory.dmp
memory/2176-7-0x00000000001A0000-0x00000000001A1000-memory.dmp
memory/2268-8-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2268-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2268-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2268-16-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2268-9-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2268-17-0x0000000073FF2000-0x0000000073FF4000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp17D4.tmp
| MD5 | c6f0625bf4c1cdfb699980c9243d3b22 |
| SHA1 | 43de1fe580576935516327f17b5da0c656c72851 |
| SHA256 | 8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576 |
| SHA512 | 9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969 |
C:\Users\Admin\AppData\Local\Temp\tmp1823.tmp
| MD5 | 0479d5f304ef2d7e3c15fb24a99f88c1 |
| SHA1 | 8edbb1450a656fac5f5e96779ffe440ee8c1aec9 |
| SHA256 | 112557c2b2d0c669a3b115129dc32f005341e965330fa8f2ad3e5de1926594bc |
| SHA512 | 537e8d87e5cd975f0e69bb145f81d6e9d7b0d82eed143ac351304ea38577137386a51fdb7357ec6d641eb04ff5f51e249bba2db8a4b5bf2934d561394a4a3f15 |
memory/2176-25-0x0000000000B50000-0x0000000000C98000-memory.dmp
memory/2176-26-0x0000000000B50000-0x0000000000C98000-memory.dmp
memory/2176-30-0x0000000000B50000-0x0000000000C98000-memory.dmp
memory/2268-31-0x0000000073FF2000-0x0000000073FF4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-18 18:27
Reported
2024-05-18 18:29
Platform
win10v2004-20240426-en
Max time kernel
134s
Max time network
147s
Command Line
Signatures
NanoCore
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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\09bc8f508d13b32a88d742229c4d33cbec3399c54e6259c6a0f8d499e6f229a5.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.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 |
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2628 set thread context of 4688 | N/A | C:\Users\Admin\AppData\Local\Temp\09bc8f508d13b32a88d742229c4d33cbec3399c54e6259c6a0f8d499e6f229a5.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)\DHCP Subsystem\dhcpss.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| File opened for modification | C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Creates scheduled task(s)
| 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\09bc8f508d13b32a88d742229c4d33cbec3399c54e6259c6a0f8d499e6f229a5.exe
"C:\Users\Admin\AppData\Local\Temp\09bc8f508d13b32a88d742229c4d33cbec3399c54e6259c6a0f8d499e6f229a5.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 "DHCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4C27.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DHCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4C57.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.75:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| NL | 23.62.61.75:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 75.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| NL | 213.184.126.143:1993 | tcp | |
| NL | 213.184.126.143:1993 | tcp | |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | 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/2628-0-0x0000000000DA0000-0x0000000000EE8000-memory.dmp
memory/2628-1-0x0000000000DA0000-0x0000000000EE8000-memory.dmp
memory/2628-2-0x0000000000DA0000-0x0000000000EE8000-memory.dmp
memory/2628-3-0x0000000000DA0000-0x0000000000EE8000-memory.dmp
memory/2628-4-0x0000000000DA0000-0x0000000000EE8000-memory.dmp
memory/2628-5-0x0000000000DA0000-0x0000000000EE8000-memory.dmp
memory/2628-6-0x0000000000DA0000-0x0000000000EE8000-memory.dmp
memory/2628-12-0x0000000000AD0000-0x0000000000AD1000-memory.dmp
memory/4688-13-0x0000000073F22000-0x0000000073F23000-memory.dmp
memory/4688-14-0x0000000073F20000-0x00000000744D1000-memory.dmp
memory/4688-15-0x0000000073F20000-0x00000000744D1000-memory.dmp
memory/4688-8-0x0000000000400000-0x0000000000438000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp4C57.tmp
| MD5 | 2f26d92c1eeead3896820e56ec46f6f1 |
| SHA1 | d95533b61eed7d89e4ada56bc566d60e42ac1f61 |
| SHA256 | 99a158463ce40c750bad6991ae1fceece305a0dbf8e209dd7147b5d539756bfa |
| SHA512 | 6c1ed12d5e1afcd9e7f327e0153786fd8594f75a995f341c408ef014e69917452a9fe99c511f0249aceb57b3045b707f1fd3f404e4086cfbf0aadcb3318db892 |
C:\Users\Admin\AppData\Local\Temp\tmp4C27.tmp
| MD5 | c6f0625bf4c1cdfb699980c9243d3b22 |
| SHA1 | 43de1fe580576935516327f17b5da0c656c72851 |
| SHA256 | 8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576 |
| SHA512 | 9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969 |
memory/2628-23-0x0000000000DA0000-0x0000000000EE8000-memory.dmp
memory/2628-24-0x0000000000DA0000-0x0000000000EE8000-memory.dmp
memory/2628-28-0x0000000000DA0000-0x0000000000EE8000-memory.dmp
memory/4688-30-0x0000000073F20000-0x00000000744D1000-memory.dmp
memory/4688-29-0x0000000073F22000-0x0000000073F23000-memory.dmp