Analysis Overview
SHA256
97c92990e38fb05719839a6ff4c375bf20f41b1d0317a424d1cad2920ec6613b
Threat Level: Known bad
The file Server.exe was found to be: Known bad.
Malicious Activity Summary
Njrat family
njRAT/Bladabindi
Modifies Windows Firewall
Drops startup file
Adds Run key to start application
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-29 18:42
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-29 18:42
Reported
2024-02-29 18:44
Platform
win10v2004-20240226-en
Max time kernel
36s
Max time network
40s
Command Line
Signatures
njRAT/Bladabindi
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\984559f52d4087243e95e5ad9bb48e8d.exe | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\984559f52d4087243e95e5ad9bb48e8d.exe | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\984559f52d4087243e95e5ad9bb48e8d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .." | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\984559f52d4087243e95e5ad9bb48e8d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .." | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4928 wrote to memory of 452 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 4928 wrote to memory of 452 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 4928 wrote to memory of 452 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 1.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.113.22.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 203.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| N/A | 127.0.0.1:5552 | tcp | |
| N/A | 127.0.0.1:5552 | tcp | |
| N/A | 127.0.0.1:5552 | tcp | |
| N/A | 127.0.0.1:5552 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.134.221.88.in-addr.arpa | udp |
| N/A | 127.0.0.1:5552 | tcp |
Files
memory/4928-0-0x0000000075410000-0x00000000759C1000-memory.dmp
memory/4928-1-0x0000000075410000-0x00000000759C1000-memory.dmp
memory/4928-2-0x0000000000E00000-0x0000000000E10000-memory.dmp
memory/4928-4-0x0000000075410000-0x00000000759C1000-memory.dmp
memory/4928-5-0x0000000075410000-0x00000000759C1000-memory.dmp
memory/4928-6-0x0000000000E00000-0x0000000000E10000-memory.dmp