Analysis Overview
SHA256
915be1f438915d9e334d6fd0021073e25a16ac5c0c5e6e8f945b30cbcfbeea90
Threat Level: Known bad
The file Server11.exe was found to be: Known bad.
Malicious Activity Summary
Njrat family
Modifies Windows Firewall
Unsigned PE
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-24 04:37
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-24 04:37
Reported
2024-02-24 04:40
Platform
win7-20240221-en
Max time kernel
149s
Max time network
121s
Command Line
Signatures
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Server11.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2516 wrote to memory of 2992 | N/A | C:\Users\Admin\AppData\Local\Temp\Server11.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 2516 wrote to memory of 2992 | N/A | C:\Users\Admin\AppData\Local\Temp\Server11.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 2516 wrote to memory of 2992 | N/A | C:\Users\Admin\AppData\Local\Temp\Server11.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 2516 wrote to memory of 2992 | N/A | C:\Users\Admin\AppData\Local\Temp\Server11.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Server11.exe
"C:\Users\Admin\AppData\Local\Temp\Server11.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server11.exe" "Server11.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp |
Files
memory/2516-0-0x0000000074AE0000-0x000000007508B000-memory.dmp
memory/2516-1-0x0000000074AE0000-0x000000007508B000-memory.dmp
memory/2516-2-0x00000000009D0000-0x0000000000A10000-memory.dmp
memory/2516-4-0x0000000074AE0000-0x000000007508B000-memory.dmp
memory/2516-5-0x0000000074AE0000-0x000000007508B000-memory.dmp
memory/2516-6-0x00000000009D0000-0x0000000000A10000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-24 04:37
Reported
2024-02-24 04:40
Platform
win10v2004-20240221-en
Max time kernel
149s
Max time network
154s
Command Line
Signatures
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Server11.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1760 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\Server11.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 1760 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\Server11.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 1760 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\Server11.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Server11.exe
"C:\Users\Admin\AppData\Local\Temp\Server11.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server11.exe" "Server11.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.201.86.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| N/A | 127.0.0.1:443 | tcp | |
| US | 8.8.8.8:53 | 121.150.79.40.in-addr.arpa | udp |
Files
memory/1760-0-0x0000000074FF0000-0x00000000755A1000-memory.dmp
memory/1760-1-0x0000000074FF0000-0x00000000755A1000-memory.dmp
memory/1760-2-0x0000000000DD0000-0x0000000000DE0000-memory.dmp
memory/1760-4-0x0000000074FF0000-0x00000000755A1000-memory.dmp
memory/1760-5-0x0000000074FF0000-0x00000000755A1000-memory.dmp