Analysis Overview
SHA256
94baaf372f566bc6ffa2c24a952b3f4dda94f29c031b95cfcfba96862206b5a7
Threat Level: Known bad
The file Server33.exe was found to be: Known bad.
Malicious Activity Summary
Njrat family
Modifies Windows Firewall
Executes dropped EXE
Drops startup file
Checks computer location settings
Drops file in System32 directory
Drops autorun.inf file
Drops file in Windows directory
Drops file in Program Files directory
Unsigned PE
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-22 21:14
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-22 21:14
Reported
2024-06-22 21:17
Platform
win10v2004-20240611-en
Max time kernel
210s
Max time network
208s
Command Line
Signatures
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Server33.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe | C:\Windows\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe | C:\Windows\server.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a4955fd3d259f774f053031a46dc14a9Windows Update.exe | C:\Windows\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a4955fd3d259f774f053031a46dc14a9Windows Update.exe | C:\Windows\server.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe | C:\Windows\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe | C:\Windows\server.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\server.exe | N/A |
Drops autorun.inf file
| Description | Indicator | Process | Target |
| File created | F:\autorun.inf | C:\Windows\server.exe | N/A |
| File opened for modification | F:\autorun.inf | C:\Windows\server.exe | N/A |
| File created | C:\autorun.inf | C:\Windows\server.exe | N/A |
| File opened for modification | C:\autorun.inf | C:\Windows\server.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\Explower.exe | C:\Windows\server.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Explower.exe | C:\Windows\server.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Explower.exe | C:\Windows\server.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Explower.exe | C:\Windows\server.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\server.exe | C:\Users\Admin\AppData\Local\Temp\Server33.exe | N/A |
| File opened for modification | C:\Windows\server.exe | C:\Windows\server.exe | N/A |
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key value enumerated | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key value enumerated | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key value enumerated | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\server.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Server33.exe
"C:\Users\Admin\AppData\Local\Temp\Server33.exe"
C:\Windows\server.exe
"C:\Windows\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE
C:\Windows\SysWOW64\netsh.exe
netsh firewall delete allowedprogram "C:\Windows\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| NL | 23.62.61.129:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 45.19.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 129.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | remember-sail.gl.at.ply.gg | udp |
| US | 147.185.221.20:446 | remember-sail.gl.at.ply.gg | tcp |
| US | 147.185.221.20:446 | remember-sail.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 147.185.221.20:446 | remember-sail.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 147.185.221.20:446 | remember-sail.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 147.185.221.20:446 | remember-sail.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
| US | 147.185.221.20:446 | remember-sail.gl.at.ply.gg | tcp |
| US | 147.185.221.20:446 | remember-sail.gl.at.ply.gg | tcp |
| US | 147.185.221.20:446 | remember-sail.gl.at.ply.gg | tcp |
| US | 147.185.221.20:446 | remember-sail.gl.at.ply.gg | tcp |
Files
memory/704-0-0x0000000074852000-0x0000000074853000-memory.dmp
memory/704-1-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/704-2-0x0000000074850000-0x0000000074E01000-memory.dmp
C:\Windows\server.exe
| MD5 | 5836adbf5699fe6dc7e27d695881f99f |
| SHA1 | 7283570b5b5485ea614926acab4a9138d55edd5d |
| SHA256 | 94baaf372f566bc6ffa2c24a952b3f4dda94f29c031b95cfcfba96862206b5a7 |
| SHA512 | 5431a6328f6eed65d252f2bf91b441400777ad976d57127c08c36f63b2350eb23803f819191099e29a8adeee53de219b6a11f5c7eecffbb9c22944540beee189 |
memory/704-14-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3484-13-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3484-15-0x0000000074850000-0x0000000074E01000-memory.dmp
C:\Users\Admin\AppData\Roaming\app
| MD5 | d43c5b07c128b116b7bc8faf7b8efa9d |
| SHA1 | dd3540ad4ae14b21b665d108cf4570c2dfa6a6fa |
| SHA256 | 80ad1cc7b3a784dad618a445af0c8cf3efa903f82a814756f2aaa7b57f45791f |
| SHA512 | 618b01e2b808e1954d011635dfdf63bc75855145208fc5cae33ce09c7e5b43cf978f6511beb311765e6920e728a290c9f9ced7563e40e8ff8d093d50fdc18334 |
memory/3484-53-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3484-54-0x0000000074850000-0x0000000074E01000-memory.dmp