Analysis Overview
SHA256
37a9de85c77b7c0bcf5e7147ec294a3bb9158aff6a5b2aca6e98b11d33c4ae75
Threat Level: Known bad
The file x5rcnYdSS63I.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
2023-09-05 16:05
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-09-05 16:05
Reported
2023-09-05 16:07
Platform
win7-20230831-en
Max time kernel
118s
Max time network
122s
Command Line
Signatures
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 868 wrote to memory of 2088 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 868 wrote to memory of 2088 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 868 wrote to memory of 2088 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 868 wrote to memory of 2088 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe
"C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | gremabenj.duckdns.org | udp |
| CO | 179.13.6.226:3110 | gremabenj.duckdns.org | tcp |
Files
memory/868-0-0x00000000746E0000-0x0000000074C8B000-memory.dmp
memory/868-1-0x00000000746E0000-0x0000000074C8B000-memory.dmp
memory/868-2-0x0000000000B70000-0x0000000000BB0000-memory.dmp
memory/868-3-0x00000000746E0000-0x0000000074C8B000-memory.dmp
memory/868-4-0x00000000746E0000-0x0000000074C8B000-memory.dmp
memory/868-5-0x0000000000B70000-0x0000000000BB0000-memory.dmp
memory/868-6-0x0000000000B70000-0x0000000000BB0000-memory.dmp
memory/868-7-0x00000000746E0000-0x0000000074C8B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-09-05 16:05
Reported
2023-09-05 16:07
Platform
win10v2004-20230831-en
Max time kernel
139s
Max time network
154s
Command Line
Signatures
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: 33 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3136 wrote to memory of 3080 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3136 wrote to memory of 3080 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3136 wrote to memory of 3080 | N/A | C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe
"C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\x5rcnYdSS63I.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | gremabenj.duckdns.org | udp |
| CO | 179.13.6.226:3110 | gremabenj.duckdns.org | tcp |
| US | 8.8.8.8:53 | 226.6.13.179.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.208.79.178.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 7.173.189.20.in-addr.arpa | udp |
Files
memory/3136-0-0x0000000074970000-0x0000000074F21000-memory.dmp
memory/3136-1-0x0000000074970000-0x0000000074F21000-memory.dmp
memory/3136-2-0x0000000000D80000-0x0000000000D90000-memory.dmp
memory/3136-3-0x0000000074970000-0x0000000074F21000-memory.dmp
memory/3136-4-0x0000000074970000-0x0000000074F21000-memory.dmp
memory/3136-5-0x0000000000D80000-0x0000000000D90000-memory.dmp
memory/3136-7-0x0000000074970000-0x0000000074F21000-memory.dmp