Analysis Overview
SHA256
3f24a0243264894973daaddd665b311850024f99a47f935ca6ecba0d95f5f283
Threat Level: Known bad
The file bTDk.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
2024-02-19 17:10
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-19 17:10
Reported
2024-02-19 17:12
Platform
win7-20231215-en
Max time kernel
117s
Max time network
121s
Command Line
Signatures
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1424 wrote to memory of 2568 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1424 wrote to memory of 2568 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1424 wrote to memory of 2568 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1424 wrote to memory of 2568 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bTDk.exe
"C:\Users\Admin\AppData\Local\Temp\bTDk.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\bTDk.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | patria.duckdns.org | udp |
| SE | 46.246.80.3:1994 | patria.duckdns.org | tcp |
Files
memory/1424-0-0x0000000074640000-0x0000000074BEB000-memory.dmp
memory/1424-1-0x0000000074640000-0x0000000074BEB000-memory.dmp
memory/1424-2-0x0000000002100000-0x0000000002140000-memory.dmp
memory/1424-3-0x0000000074640000-0x0000000074BEB000-memory.dmp
memory/1424-4-0x0000000074640000-0x0000000074BEB000-memory.dmp
memory/1424-5-0x0000000002100000-0x0000000002140000-memory.dmp
memory/1424-6-0x0000000002100000-0x0000000002140000-memory.dmp
memory/1424-7-0x0000000074640000-0x0000000074BEB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-19 17:10
Reported
2024-02-19 17:12
Platform
win10v2004-20231215-en
Max time kernel
143s
Max time network
158s
Command Line
Signatures
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1728 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1728 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1728 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bTDk.exe
"C:\Users\Admin\AppData\Local\Temp\bTDk.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\bTDk.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 175.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.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 | 46.246.80.3:1994 | patria.duckdns.org | tcp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.80.246.46.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 193.78.101.95.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5.173.189.20.in-addr.arpa | udp |
Files
memory/1728-0-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/1728-2-0x00000000014C0000-0x00000000014D0000-memory.dmp
memory/1728-1-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/1728-3-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/1728-4-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/1728-5-0x00000000014C0000-0x00000000014D0000-memory.dmp
memory/1728-7-0x0000000074640000-0x0000000074BF1000-memory.dmp