Analysis Overview
SHA256
57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333
Threat Level: Known bad
The file 57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333N.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 behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-02-01 19:51
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
2025-02-01 19:51
Reported
2025-02-01 19:53
Platform
win10v2004-20241007-en
Max time kernel
120s
Max time network
120s
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\57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333N.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 3352 set thread context of 3124 | N/A | C:\Users\Admin\AppData\Local\Temp\57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333N.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\57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333N.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\57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333N.exe
"C:\Users\Admin\AppData\Local\Temp\57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333N.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 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.153.16.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5.114.82.104.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 | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | 228.249.119.40.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 | 149.220.183.52.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 | 8.8.8.8:53 | testwork.kozow.com | udp |
| US | 8.8.4.4:53 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 167.190.18.2.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 | 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 | 21.49.80.91.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 | 8.8.8.8:53 | 77.190.18.2.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 | 8.8.4.4:53 | 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 |
Files
memory/3352-0-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3352-6-0x0000000001130000-0x0000000001131000-memory.dmp
memory/3124-8-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3124-12-0x0000000074362000-0x0000000074363000-memory.dmp
memory/3124-13-0x0000000074360000-0x0000000074911000-memory.dmp
memory/3352-14-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3124-15-0x0000000074360000-0x0000000074911000-memory.dmp
memory/3352-17-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3352-18-0x0000000001130000-0x0000000001131000-memory.dmp
memory/3124-19-0x0000000074362000-0x0000000074363000-memory.dmp
memory/3124-20-0x0000000074360000-0x0000000074911000-memory.dmp
memory/3124-21-0x0000000074360000-0x0000000074911000-memory.dmp
memory/3352-22-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3352-23-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3352-24-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3352-25-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3352-26-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3352-27-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3352-28-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3352-29-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3352-30-0x0000000000F20000-0x00000000010D1000-memory.dmp
memory/3352-31-0x0000000000F20000-0x00000000010D1000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2025-02-01 19:51
Reported
2025-02-01 19:53
Platform
win7-20240903-en
Max time kernel
120s
Max time network
116s
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\57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333N.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 1252 set thread context of 828 | N/A | C:\Users\Admin\AppData\Local\Temp\57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333N.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\57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333N.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\57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333N.exe
"C:\Users\Admin\AppData\Local\Temp\57a038e9ddfdf171acff9f06c4a6847a3ed42e58311fab16f3fe255dd12b9333N.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/1252-0-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-6-0x00000000001E0000-0x00000000001E1000-memory.dmp
memory/828-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/828-16-0x0000000000090000-0x00000000000C8000-memory.dmp
memory/828-15-0x0000000000090000-0x00000000000C8000-memory.dmp
memory/828-9-0x0000000000090000-0x00000000000C8000-memory.dmp
memory/828-7-0x0000000000090000-0x00000000000C8000-memory.dmp
memory/828-17-0x00000000744D2000-0x00000000744D4000-memory.dmp
memory/1252-19-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-20-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-21-0x00000000001E0000-0x00000000001E1000-memory.dmp
memory/828-22-0x00000000744D2000-0x00000000744D4000-memory.dmp
memory/1252-23-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-24-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-25-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-26-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-27-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-28-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-29-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-30-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-31-0x0000000000D10000-0x0000000000EC1000-memory.dmp
memory/1252-32-0x0000000000D10000-0x0000000000EC1000-memory.dmp