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 17:08
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 17:08
Reported
2024-02-19 17:10
Platform
win7-20231215-en
Max time kernel
118s
Max time network
124s
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 |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2644 wrote to memory of 2852 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2644 wrote to memory of 2852 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2644 wrote to memory of 2852 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2644 wrote to memory of 2852 | 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/2644-0-0x0000000074930000-0x0000000074EDB000-memory.dmp
memory/2644-1-0x0000000074930000-0x0000000074EDB000-memory.dmp
memory/2644-2-0x0000000002150000-0x0000000002190000-memory.dmp
memory/2644-3-0x0000000074930000-0x0000000074EDB000-memory.dmp
memory/2644-4-0x0000000002150000-0x0000000002190000-memory.dmp
memory/2644-5-0x0000000074930000-0x0000000074EDB000-memory.dmp
memory/2644-6-0x0000000074930000-0x0000000074EDB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-19 17:08
Reported
2024-02-19 17:10
Platform
win10v2004-20231215-en
Max time kernel
145s
Max time network
152s
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 |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3304 wrote to memory of 3568 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3304 wrote to memory of 3568 | N/A | C:\Users\Admin\AppData\Local\Temp\bTDk.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3304 wrote to memory of 3568 | 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 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | patria.duckdns.org | udp |
| SE | 46.246.80.3:1994 | patria.duckdns.org | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.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 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.173.189.20.in-addr.arpa | udp |
Files
memory/3304-0-0x00000000754C0000-0x0000000075A71000-memory.dmp
memory/3304-1-0x00000000754C0000-0x0000000075A71000-memory.dmp
memory/3304-2-0x0000000000EF0000-0x0000000000F00000-memory.dmp
memory/3304-3-0x0000000000EF0000-0x0000000000F00000-memory.dmp
memory/3304-4-0x00000000754C0000-0x0000000075A71000-memory.dmp
memory/3304-6-0x00000000754C0000-0x0000000075A71000-memory.dmp