Analysis Overview
SHA256
18dcdea8ad6ed1da48c7fd85a62e2fe4b5bdf4e447bb28cfe17ea705396d0878
Threat Level: Known bad
The file Spoofer by kero.exe was found to be: Known bad.
Malicious Activity Summary
Njrat family
Modifies Windows Firewall
Legitimate hosting services abused for malware hosting/C2
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: GetForegroundWindowSpam
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-21 19:38
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-21 19:38
Reported
2024-01-21 19:41
Platform
win11-20231222-en
Max time kernel
146s
Max time network
150s
Command Line
Signatures
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Suspicious behavior: AddClipboardFormatListener
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2908 wrote to memory of 1544 | N/A | C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 2908 wrote to memory of 1544 | N/A | C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 2908 wrote to memory of 1544 | N/A | C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe
"C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe" "Spoofer by kero.exe" ENABLE
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\Desktop\SkipSync.xla"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 204.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 18.198.77.177:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.127.59.75:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.127.59.75:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.127.59.75:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.127.59.75:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.127.59.75:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.127.59.75:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.127.59.75:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.127.59.75:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.127.59.75:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 52.28.112.211:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.121.139.82:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.121.139.82:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.121.139.82:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.121.139.82:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.121.139.82:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.121.139.82:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.121.139.82:17216 | 4.tcp.eu.ngrok.io | tcp |
| DE | 3.121.139.82:17216 | 4.tcp.eu.ngrok.io | tcp |
Files
memory/2908-0-0x00000000748D0000-0x0000000074E81000-memory.dmp
memory/2908-1-0x00000000014A0000-0x00000000014B0000-memory.dmp
memory/2908-2-0x00000000748D0000-0x0000000074E81000-memory.dmp
memory/2908-4-0x00000000748D0000-0x0000000074E81000-memory.dmp
memory/2908-5-0x00000000748D0000-0x0000000074E81000-memory.dmp
memory/232-7-0x00007FF97C130000-0x00007FF97C140000-memory.dmp
memory/232-6-0x00007FF97C130000-0x00007FF97C140000-memory.dmp
memory/232-9-0x00007FF97C130000-0x00007FF97C140000-memory.dmp
memory/232-10-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-8-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-13-0x00007FF97C130000-0x00007FF97C140000-memory.dmp
memory/232-14-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-12-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-11-0x00007FF97C130000-0x00007FF97C140000-memory.dmp
memory/232-15-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-16-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-19-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-18-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-17-0x00007FF979E70000-0x00007FF979E80000-memory.dmp
memory/232-20-0x00007FF979E70000-0x00007FF979E80000-memory.dmp
memory/232-21-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-22-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-23-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-24-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-25-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-26-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-27-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-28-0x00007FF9BA5C0000-0x00007FF9BA67D000-memory.dmp
memory/232-29-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp
memory/232-34-0x00007FF9BC0A0000-0x00007FF9BC2A9000-memory.dmp