Analysis Overview
SHA256
d1e1a276ad4820f0472c8acac3f9d17d3bcd64bbe35f5c38148533f1f5b14603
Threat Level: Known bad
The file Server.exe was found to be: Known bad.
Malicious Activity Summary
njRAT/Bladabindi
Njrat family
Modifies Windows Firewall
Drops startup file
Checks computer location settings
Executes dropped EXE
Drops autorun.inf file
Drops file in System32 directory
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-18 14:52
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-18 14:52
Reported
2024-01-18 14:54
Platform
win7-20231215-en
Max time kernel
150s
Max time network
121s
Command Line
Signatures
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.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\7c19e8f3730b35d0f4a54a9c8fb6c824Windows Update.exe | C:\Windows\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7c19e8f3730b35d0f4a54a9c8fb6c824Windows 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 | C:\autorun.inf | C:\Windows\server.exe | N/A |
| File opened for modification | C:\autorun.inf | C:\Windows\server.exe | N/A |
| File created | F:\autorun.inf | C:\Windows\server.exe | N/A |
| File opened for modification | F:\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 opened for modification | C:\Windows\server.exe | C:\Windows\server.exe | N/A |
| File created | C:\Windows\server.exe | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
Enumerates physical storage devices
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 |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2088 wrote to memory of 2756 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | C:\Windows\server.exe |
| PID 2088 wrote to memory of 2756 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | C:\Windows\server.exe |
| PID 2088 wrote to memory of 2756 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | C:\Windows\server.exe |
| PID 2088 wrote to memory of 2756 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | C:\Windows\server.exe |
| PID 2756 wrote to memory of 2740 | N/A | C:\Windows\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 2756 wrote to memory of 2740 | N/A | C:\Windows\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 2756 wrote to memory of 2740 | N/A | C:\Windows\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 2756 wrote to memory of 2740 | N/A | C:\Windows\server.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.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
Network
Files
memory/2088-0-0x0000000074A50000-0x0000000074FFB000-memory.dmp
memory/2088-1-0x0000000074A50000-0x0000000074FFB000-memory.dmp
memory/2088-2-0x0000000000270000-0x00000000002B0000-memory.dmp
C:\Windows\server.exe
| MD5 | 90ac8a759ee08383aae9e92c55550701 |
| SHA1 | acb356c4b297f8072e744955a35b52ffb1f403d2 |
| SHA256 | d1e1a276ad4820f0472c8acac3f9d17d3bcd64bbe35f5c38148533f1f5b14603 |
| SHA512 | 19363a421ea763a0e5befab5134fdb90d8eee4a45ede263ca4abbd92c71a454c2cab4b9dca32d1480bedc335df79830795580d93f33afae2d364b51310e92fdd |
memory/2088-13-0x0000000074A50000-0x0000000074FFB000-memory.dmp
memory/2756-14-0x0000000000090000-0x00000000000D0000-memory.dmp
memory/2756-12-0x0000000074A50000-0x0000000074FFB000-memory.dmp
C:\Users\Admin\AppData\Roaming\app
| MD5 | 410c3c7c3e0376e2f9b228980b58d042 |
| SHA1 | 3aec3fa12cd88edca90fdc72a0d25cd071dc2052 |
| SHA256 | 5c272042cede2596555e6b6f2c36857b015ccab9f34affbc63d6b000ccd08391 |
| SHA512 | 2a1e382b045d59580271cb05b521d0c6e99772be7cd5ce38d3e5e1997a4cb9d3fe5d424a24c67383a5a2d0002d4a2194f71e1604fa9ff0199944f8cee9b26a57 |
memory/2756-52-0x0000000074A50000-0x0000000074FFB000-memory.dmp
memory/2756-53-0x0000000000090000-0x00000000000D0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-18 14:52
Reported
2024-01-18 14:54
Platform
win10v2004-20231215-en
Max time kernel
152s
Max time network
150s
Command Line
Signatures
njRAT/Bladabindi
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| 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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| 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\7c19e8f3730b35d0f4a54a9c8fb6c824Windows Update.exe | C:\Windows\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7c19e8f3730b35d0f4a54a9c8fb6c824Windows 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 |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.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 | C:\autorun.inf | C:\Windows\server.exe | N/A |
| File opened for modification | C:\autorun.inf | C:\Windows\server.exe | N/A |
| File created | F:\autorun.inf | C:\Windows\server.exe | N/A |
| File opened for modification | F:\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\Server.exe | N/A |
| File opened for modification | C:\Windows\server.exe | C:\Windows\server.exe | N/A |
Enumerates physical storage devices
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 |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2640 wrote to memory of 4428 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | C:\Windows\server.exe |
| PID 2640 wrote to memory of 4428 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | C:\Windows\server.exe |
| PID 2640 wrote to memory of 4428 | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | C:\Windows\server.exe |
| PID 4428 wrote to memory of 4368 | N/A | C:\Windows\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 4428 wrote to memory of 4368 | N/A | C:\Windows\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 4428 wrote to memory of 4368 | N/A | C:\Windows\server.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.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
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 114.110.16.96.in-addr.arpa | udp |
Files
memory/2640-0-0x0000000074C80000-0x0000000075231000-memory.dmp
memory/2640-1-0x0000000074C80000-0x0000000075231000-memory.dmp
memory/2640-2-0x0000000000E50000-0x0000000000E60000-memory.dmp
C:\Windows\server.exe
| MD5 | 90ac8a759ee08383aae9e92c55550701 |
| SHA1 | acb356c4b297f8072e744955a35b52ffb1f403d2 |
| SHA256 | d1e1a276ad4820f0472c8acac3f9d17d3bcd64bbe35f5c38148533f1f5b14603 |
| SHA512 | 19363a421ea763a0e5befab5134fdb90d8eee4a45ede263ca4abbd92c71a454c2cab4b9dca32d1480bedc335df79830795580d93f33afae2d364b51310e92fdd |
memory/4428-13-0x0000000074C80000-0x0000000075231000-memory.dmp
memory/4428-14-0x0000000001160000-0x0000000001170000-memory.dmp
memory/2640-16-0x0000000074C80000-0x0000000075231000-memory.dmp
memory/4428-15-0x0000000074C80000-0x0000000075231000-memory.dmp
C:\Users\Admin\AppData\Roaming\app
| MD5 | 410c3c7c3e0376e2f9b228980b58d042 |
| SHA1 | 3aec3fa12cd88edca90fdc72a0d25cd071dc2052 |
| SHA256 | 5c272042cede2596555e6b6f2c36857b015ccab9f34affbc63d6b000ccd08391 |
| SHA512 | 2a1e382b045d59580271cb05b521d0c6e99772be7cd5ce38d3e5e1997a4cb9d3fe5d424a24c67383a5a2d0002d4a2194f71e1604fa9ff0199944f8cee9b26a57 |
memory/4428-54-0x0000000074C80000-0x0000000075231000-memory.dmp
memory/4428-55-0x0000000074C80000-0x0000000075231000-memory.dmp
memory/4428-56-0x0000000001160000-0x0000000001170000-memory.dmp