Analysis Overview
SHA256
ab23de5f1c097be589e6802a230a24c10e07f60f13214e1f011042f4e51061cf
Threat Level: Known bad
The file bT57.exe was found to be: Known bad.
Malicious Activity Summary
Njrat family
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-02-12 21:09
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-12 21:09
Reported
2024-02-12 21:12
Platform
win7-20231129-en
Max time kernel
120s
Max time network
120s
Command Line
Signatures
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2220 wrote to memory of 2360 | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2220 wrote to memory of 2360 | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2220 wrote to memory of 2360 | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2220 wrote to memory of 2360 | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bT57.exe
"C:\Users\Admin\AppData\Local\Temp\bT57.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\bT57.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | patria.duckdns.org | udp |
| SE | 46.246.80.9:1995 | patria.duckdns.org | tcp |
| SE | 46.246.80.9:1995 | patria.duckdns.org | tcp |
| SE | 46.246.80.9:1995 | patria.duckdns.org | tcp |
Files
memory/2220-0-0x00000000741D0000-0x000000007477B000-memory.dmp
memory/2220-1-0x00000000741D0000-0x000000007477B000-memory.dmp
memory/2220-2-0x0000000002070000-0x00000000020B0000-memory.dmp
memory/2220-3-0x00000000741D0000-0x000000007477B000-memory.dmp
memory/2220-4-0x00000000741D0000-0x000000007477B000-memory.dmp
memory/2220-5-0x0000000002070000-0x00000000020B0000-memory.dmp
memory/2220-6-0x00000000741D0000-0x000000007477B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-12 21:09
Reported
2024-02-12 21:12
Platform
win10v2004-20231215-en
Max time kernel
145s
Max time network
149s
Command Line
Signatures
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3184 wrote to memory of 2500 | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3184 wrote to memory of 2500 | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3184 wrote to memory of 2500 | N/A | C:\Users\Admin\AppData\Local\Temp\bT57.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bT57.exe
"C:\Users\Admin\AppData\Local\Temp\bT57.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\bT57.exe"
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 179.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | patria.duckdns.org | udp |
| SE | 46.246.80.9:1995 | patria.duckdns.org | tcp |
| US | 8.8.8.8:53 | 9.80.246.46.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.160.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 189.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.16.208.104.in-addr.arpa | udp |
Files
memory/3184-0-0x0000000074EA0000-0x0000000075451000-memory.dmp
memory/3184-1-0x0000000000EF0000-0x0000000000F00000-memory.dmp
memory/3184-2-0x0000000074EA0000-0x0000000075451000-memory.dmp
memory/3184-3-0x0000000000EF0000-0x0000000000F00000-memory.dmp
memory/3184-4-0x0000000074EA0000-0x0000000075451000-memory.dmp
memory/3184-6-0x0000000074EA0000-0x0000000075451000-memory.dmp