Analysis Overview
SHA256
7a6c5815545f2172e0717732eb817b464b324c7a218b85266d5ccfdb62423cda
Threat Level: Known bad
The file bF3n.exe was found to be: Known bad.
Malicious Activity Summary
Njrat family
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-09-30 20:08
Signatures
Njrat family
Analysis: behavioral1
Detonation Overview
Submitted
2022-09-30 20:08
Reported
2022-09-30 20:10
Platform
win7-20220812-en
Max time kernel
122s
Max time network
125s
Command Line
Signatures
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1608 wrote to memory of 1980 | N/A | C:\Users\Admin\AppData\Local\Temp\bF3n.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1608 wrote to memory of 1980 | N/A | C:\Users\Admin\AppData\Local\Temp\bF3n.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1608 wrote to memory of 1980 | N/A | C:\Users\Admin\AppData\Local\Temp\bF3n.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1608 wrote to memory of 1980 | N/A | C:\Users\Admin\AppData\Local\Temp\bF3n.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bF3n.exe
"C:\Users\Admin\AppData\Local\Temp\bF3n.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\bF3n.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | adminneiva.duckdns.org | udp |
| US | 206.123.129.93:2023 | adminneiva.duckdns.org | tcp |
Files
memory/1608-54-0x0000000075A91000-0x0000000075A93000-memory.dmp
memory/1608-55-0x00000000744E0000-0x0000000074A8B000-memory.dmp
memory/1608-56-0x00000000744E0000-0x0000000074A8B000-memory.dmp
memory/1980-57-0x0000000000000000-mapping.dmp
memory/1608-58-0x00000000744E0000-0x0000000074A8B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-09-30 20:08
Reported
2022-09-30 20:10
Platform
win10v2004-20220901-en
Max time kernel
120s
Max time network
139s
Command Line
Signatures
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3960 wrote to memory of 2352 | N/A | C:\Users\Admin\AppData\Local\Temp\bF3n.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3960 wrote to memory of 2352 | N/A | C:\Users\Admin\AppData\Local\Temp\bF3n.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3960 wrote to memory of 2352 | N/A | C:\Users\Admin\AppData\Local\Temp\bF3n.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bF3n.exe
"C:\Users\Admin\AppData\Local\Temp\bF3n.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\bF3n.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | adminneiva.duckdns.org | udp |
| US | 206.123.129.93:2023 | adminneiva.duckdns.org | tcp |
| JP | 13.78.111.198:443 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| NL | 88.221.25.155:80 | tcp | |
| NL | 88.221.25.155:80 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| US | 8.247.211.254:80 | tcp | |
| US | 204.79.197.203:80 | tcp |
Files
memory/3960-132-0x00000000754F0000-0x0000000075AA1000-memory.dmp
memory/3960-133-0x00000000754F0000-0x0000000075AA1000-memory.dmp
memory/2352-134-0x0000000000000000-mapping.dmp
memory/3960-135-0x00000000754F0000-0x0000000075AA1000-memory.dmp