Analysis Overview
SHA256
7d86de2d2e6cd118653666fd446f52370e890e3f72ba30de620abdea1f514822
Threat Level: Known bad
The file bT5b.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 15:09
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 15:09
Reported
2024-02-12 15:12
Platform
win7-20231215-en
Max time kernel
121s
Max time network
124s
Command Line
Signatures
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2804 wrote to memory of 1628 | N/A | C:\Users\Admin\AppData\Local\Temp\bT5b.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2804 wrote to memory of 1628 | N/A | C:\Users\Admin\AppData\Local\Temp\bT5b.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2804 wrote to memory of 1628 | N/A | C:\Users\Admin\AppData\Local\Temp\bT5b.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2804 wrote to memory of 1628 | N/A | C:\Users\Admin\AppData\Local\Temp\bT5b.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bT5b.exe
"C:\Users\Admin\AppData\Local\Temp\bT5b.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\bT5b.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 |
Files
memory/2804-0-0x0000000074BE0000-0x000000007518B000-memory.dmp
memory/2804-1-0x0000000074BE0000-0x000000007518B000-memory.dmp
memory/2804-2-0x00000000020A0000-0x00000000020E0000-memory.dmp
memory/2804-3-0x0000000074BE0000-0x000000007518B000-memory.dmp
memory/2804-4-0x0000000074BE0000-0x000000007518B000-memory.dmp
memory/2804-5-0x00000000020A0000-0x00000000020E0000-memory.dmp
memory/2804-6-0x00000000020A0000-0x00000000020E0000-memory.dmp
memory/2804-7-0x0000000074BE0000-0x000000007518B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-12 15:09
Reported
2024-02-12 15:12
Platform
win10v2004-20231215-en
Max time kernel
92s
Max time network
121s
Command Line
Signatures
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1356 wrote to memory of 4108 | N/A | C:\Users\Admin\AppData\Local\Temp\bT5b.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1356 wrote to memory of 4108 | N/A | C:\Users\Admin\AppData\Local\Temp\bT5b.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1356 wrote to memory of 4108 | N/A | C:\Users\Admin\AppData\Local\Temp\bT5b.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bT5b.exe
"C:\Users\Admin\AppData\Local\Temp\bT5b.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\bT5b.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 177.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.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 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 211.178.17.96.in-addr.arpa | udp |
Files
memory/1356-0-0x00000000746A0000-0x0000000074C51000-memory.dmp
memory/1356-1-0x0000000000DB0000-0x0000000000DC0000-memory.dmp
memory/1356-2-0x00000000746A0000-0x0000000074C51000-memory.dmp
memory/1356-3-0x00000000746A0000-0x0000000074C51000-memory.dmp
memory/1356-4-0x0000000000DB0000-0x0000000000DC0000-memory.dmp
memory/1356-6-0x00000000746A0000-0x0000000074C51000-memory.dmp