Analysis Overview
SHA256
bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6ea
Threat Level: Known bad
The file bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6eaN.exe was found to be: Known bad.
Malicious Activity Summary
NanoCore
Nanocore family
Drops startup file
Checks whether UAC is enabled
AutoIT Executable
UPX packed file
Suspicious use of SetThreadContext
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-26 23:45
Signatures
AutoIT Executable
| 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 |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-26 23:45
Reported
2025-01-26 23:48
Platform
win10v2004-20241007-en
Max time kernel
120s
Max time network
117s
Command Line
Signatures
NanoCore
Nanocore family
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PresentationHost.url | C:\Users\Admin\AppData\Local\Temp\bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6eaN.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 |
| 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 2808 set thread context of 596 | N/A | C:\Users\Admin\AppData\Local\Temp\bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6eaN.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
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 |
| 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 |
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\bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6eaN.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious behavior: EnumeratesProcesses
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\bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6eaN.exe
"C:\Users\Admin\AppData\Local\Temp\bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6eaN.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
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 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 184.115.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | 4.4.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | 180.129.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
Files
memory/2808-0-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-6-0x00000000041D0000-0x00000000041D1000-memory.dmp
memory/596-8-0x0000000000400000-0x0000000000438000-memory.dmp
memory/596-12-0x00000000737F2000-0x00000000737F3000-memory.dmp
memory/596-13-0x00000000737F0000-0x0000000073DA1000-memory.dmp
memory/596-15-0x00000000737F0000-0x0000000073DA1000-memory.dmp
memory/2808-14-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-17-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-18-0x00000000041D0000-0x00000000041D1000-memory.dmp
memory/596-19-0x00000000737F2000-0x00000000737F3000-memory.dmp
memory/596-20-0x00000000737F0000-0x0000000073DA1000-memory.dmp
memory/596-21-0x00000000737F0000-0x0000000073DA1000-memory.dmp
memory/2808-22-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-23-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-24-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-25-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-26-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-27-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-28-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-29-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-30-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-31-0x0000000000850000-0x0000000000A01000-memory.dmp
memory/2808-32-0x0000000000850000-0x0000000000A01000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-26 23:45
Reported
2025-01-26 23:47
Platform
win7-20240729-en
Max time kernel
120s
Max time network
118s
Command Line
Signatures
NanoCore
Nanocore family
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PresentationHost.url | C:\Users\Admin\AppData\Local\Temp\bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6eaN.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 |
| 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 2340 set thread context of 2224 | N/A | C:\Users\Admin\AppData\Local\Temp\bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6eaN.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | 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\bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6eaN.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious behavior: EnumeratesProcesses
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\bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6eaN.exe
"C:\Users\Admin\AppData\Local\Temp\bc038f3b717a20296d62ecd0f1991a7252539b04ebd2ce393f33e7de8852d6eaN.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
Files
memory/2340-0-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-6-0x00000000001E0000-0x00000000001E1000-memory.dmp
memory/2224-8-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2224-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2224-14-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2224-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2224-7-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2224-16-0x00000000741D2000-0x00000000741D4000-memory.dmp
memory/2340-18-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-19-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-20-0x00000000001E0000-0x00000000001E1000-memory.dmp
memory/2224-21-0x00000000741D2000-0x00000000741D4000-memory.dmp
memory/2340-22-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-23-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-24-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-25-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-26-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-27-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-28-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-29-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-30-0x0000000000F10000-0x00000000010C1000-memory.dmp
memory/2340-31-0x0000000000F10000-0x00000000010C1000-memory.dmp