Analysis Overview
SHA256
833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabf
Threat Level: Known bad
The file 833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabfN.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 use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-02-01 19:09
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: behavioral1
Detonation Overview
Submitted
2025-02-01 19:09
Reported
2025-02-01 19:11
Platform
win7-20241010-en
Max time kernel
120s
Max time network
124s
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\833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabfN.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 2856 set thread context of 2168 | N/A | C:\Users\Admin\AppData\Local\Temp\833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabfN.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\833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabfN.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\833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabfN.exe
"C:\Users\Admin\AppData\Local\Temp\833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabfN.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/2856-0-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-6-0x0000000000560000-0x0000000000561000-memory.dmp
memory/2168-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2168-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2168-14-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2168-8-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2168-7-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2168-16-0x0000000074882000-0x0000000074884000-memory.dmp
memory/2856-18-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-19-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-20-0x0000000000560000-0x0000000000561000-memory.dmp
memory/2168-21-0x0000000074882000-0x0000000074884000-memory.dmp
memory/2856-22-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-23-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-24-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-25-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-26-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-27-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-28-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-29-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-30-0x0000000001270000-0x0000000001421000-memory.dmp
memory/2856-31-0x0000000001270000-0x0000000001421000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-01 19:09
Reported
2025-02-01 19:11
Platform
win10v2004-20250129-en
Max time kernel
120s
Max time network
119s
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\833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabfN.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 3848 set thread context of 2052 | N/A | C:\Users\Admin\AppData\Local\Temp\833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabfN.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\833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabfN.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\833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabfN.exe
"C:\Users\Admin\AppData\Local\Temp\833eff5b143eacfd7636321f3f595bdda4d7170d53f7c503aaa511c08957eabfN.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 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 64.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.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 | 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 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.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 | testwork.kozow.com | udp |
| US | 8.8.8.8:53 | 172.214.232.199.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 | 134.130.81.91.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 | 8.8.4.4:53 | 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 | 19.229.111.52.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 |
| 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 |
Files
memory/3848-0-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/3848-6-0x0000000001F10000-0x0000000001F11000-memory.dmp
memory/2052-7-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2052-12-0x0000000074392000-0x0000000074393000-memory.dmp
memory/2052-13-0x0000000074390000-0x0000000074941000-memory.dmp
memory/3848-14-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/2052-15-0x0000000074390000-0x0000000074941000-memory.dmp
memory/3848-17-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/3848-18-0x0000000001F10000-0x0000000001F11000-memory.dmp
memory/2052-19-0x0000000074392000-0x0000000074393000-memory.dmp
memory/2052-20-0x0000000074390000-0x0000000074941000-memory.dmp
memory/2052-21-0x0000000074390000-0x0000000074941000-memory.dmp
memory/3848-22-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/3848-23-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/3848-24-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/3848-25-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/3848-26-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/3848-27-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/3848-28-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/3848-29-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/3848-30-0x0000000000620000-0x00000000007D1000-memory.dmp
memory/3848-31-0x0000000000620000-0x00000000007D1000-memory.dmp