Analysis Overview
SHA256
208981bbfc13638805c65b2b38f160866ef96f73089f10358172960742879f49
Threat Level: Known bad
The file 5b31c351ae35eff5d1db9feab78aa530N was found to be: Known bad.
Malicious Activity Summary
njRAT/Bladabindi
Njrat family
Modifies Windows Firewall
Drops startup file
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-07 18:16
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-07 18:16
Reported
2024-09-07 18:18
Platform
win7-20240903-en
Max time kernel
120s
Max time network
119s
Command Line
Signatures
njRAT/Bladabindi
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\a381333f28d6355f51765e61000056f1.exe | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a381333f28d6355f51765e61000056f1.exe | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\a381333f28d6355f51765e61000056f1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .." | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\a381333f28d6355f51765e61000056f1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .." | C:\Users\Admin\AppData\Local\Temp\dllhost.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 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 |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe
"C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe"
C:\Users\Admin\AppData\Local\Temp\dllhost.exe
"C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\dllhost.exe" "dllhost.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
Files
memory/236-0-0x0000000074D11000-0x0000000074D12000-memory.dmp
memory/236-1-0x0000000074D10000-0x00000000752BB000-memory.dmp
memory/236-2-0x0000000074D10000-0x00000000752BB000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\dllhost.exe
| MD5 | 5b31c351ae35eff5d1db9feab78aa530 |
| SHA1 | c1056ae6320d74ff2f7c68e0163847ee61f64322 |
| SHA256 | 208981bbfc13638805c65b2b38f160866ef96f73089f10358172960742879f49 |
| SHA512 | b906104290708dd4c22c718552492cd59efa7e6ef1d5e8692d7a013f05bed62dee360837f491b7ebac0c9e13716889afaf64a70989996a65e19330cbf16634ac |
memory/236-10-0x0000000074D10000-0x00000000752BB000-memory.dmp
memory/2396-11-0x0000000074D10000-0x00000000752BB000-memory.dmp
memory/2396-12-0x0000000074D10000-0x00000000752BB000-memory.dmp
memory/2396-14-0x0000000074D10000-0x00000000752BB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-07 18:16
Reported
2024-09-07 18:18
Platform
win10v2004-20240802-en
Max time kernel
120s
Max time network
119s
Command Line
Signatures
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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a381333f28d6355f51765e61000056f1.exe | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a381333f28d6355f51765e61000056f1.exe | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a381333f28d6355f51765e61000056f1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .." | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\a381333f28d6355f51765e61000056f1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .." | C:\Users\Admin\AppData\Local\Temp\dllhost.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 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 |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\netsh.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4436 wrote to memory of 1876 | N/A | C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe | C:\Users\Admin\AppData\Local\Temp\dllhost.exe |
| PID 4436 wrote to memory of 1876 | N/A | C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe | C:\Users\Admin\AppData\Local\Temp\dllhost.exe |
| PID 4436 wrote to memory of 1876 | N/A | C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe | C:\Users\Admin\AppData\Local\Temp\dllhost.exe |
| PID 1876 wrote to memory of 3356 | N/A | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 1876 wrote to memory of 3356 | N/A | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 1876 wrote to memory of 3356 | N/A | C:\Users\Admin\AppData\Local\Temp\dllhost.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe
"C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe"
C:\Users\Admin\AppData\Local\Temp\dllhost.exe
"C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\dllhost.exe" "dllhost.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | 43.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
| US | 8.8.8.8:53 | netalant-45354.portmap.io | udp |
Files
memory/4436-0-0x0000000074FF2000-0x0000000074FF3000-memory.dmp
memory/4436-1-0x0000000074FF0000-0x00000000755A1000-memory.dmp
memory/4436-2-0x0000000074FF0000-0x00000000755A1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\dllhost.exe
| MD5 | 5b31c351ae35eff5d1db9feab78aa530 |
| SHA1 | c1056ae6320d74ff2f7c68e0163847ee61f64322 |
| SHA256 | 208981bbfc13638805c65b2b38f160866ef96f73089f10358172960742879f49 |
| SHA512 | b906104290708dd4c22c718552492cd59efa7e6ef1d5e8692d7a013f05bed62dee360837f491b7ebac0c9e13716889afaf64a70989996a65e19330cbf16634ac |
memory/1876-12-0x0000000074FF0000-0x00000000755A1000-memory.dmp
memory/4436-13-0x0000000074FF0000-0x00000000755A1000-memory.dmp
memory/1876-14-0x0000000074FF0000-0x00000000755A1000-memory.dmp
memory/1876-16-0x0000000074FF0000-0x00000000755A1000-memory.dmp
memory/1876-17-0x0000000074FF0000-0x00000000755A1000-memory.dmp
memory/1876-18-0x0000000074FF0000-0x00000000755A1000-memory.dmp