Analysis Overview
SHA256
4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3
Threat Level: Known bad
The file 4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe 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
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-28 10:03
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-28 10:03
Reported
2024-09-28 10:05
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
145s
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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e43cca706d59e01c80fe2fae1742de3f.exe | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e43cca706d59e01c80fe2fae1742de3f.exe | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e43cca706d59e01c80fe2fae1742de3f = "\"C:\\Users\\Admin\\AppData\\Roaming\\igfxCUIService.exe\" .." | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\e43cca706d59e01c80fe2fae1742de3f = "\"C:\\Users\\Admin\\AppData\\Roaming\\igfxCUIService.exe\" .." | C:\Users\Admin\AppData\Roaming\igfxCUIService.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\4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\netsh.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 844 wrote to memory of 3760 | N/A | C:\Users\Admin\AppData\Local\Temp\4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe |
| PID 844 wrote to memory of 3760 | N/A | C:\Users\Admin\AppData\Local\Temp\4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe |
| PID 844 wrote to memory of 3760 | N/A | C:\Users\Admin\AppData\Local\Temp\4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe |
| PID 3760 wrote to memory of 3348 | N/A | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 3760 wrote to memory of 3348 | N/A | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 3760 wrote to memory of 3348 | N/A | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe
"C:\Users\Admin\AppData\Local\Temp\4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe"
C:\Users\Admin\AppData\Roaming\igfxCUIService.exe
"C:\Users\Admin\AppData\Roaming\igfxCUIService.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\igfxCUIService.exe" "igfxCUIService.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 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
Files
memory/844-0-0x0000000074F02000-0x0000000074F03000-memory.dmp
memory/844-1-0x0000000074F00000-0x00000000754B1000-memory.dmp
memory/844-2-0x0000000074F00000-0x00000000754B1000-memory.dmp
C:\Users\Admin\AppData\Roaming\igfxCUIService.exe
| MD5 | 4a1a0fa8fed53f3be3b26d4e2f38444b |
| SHA1 | f23d93559345eed220ad8292d43e48d35c203d52 |
| SHA256 | 4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3 |
| SHA512 | e7b7ef9a30424fa3545174e44aeea33e01c583400bb2a6a0eafe38adb9c33e1506ca5d5d2ea22b72796f858545a7702bd5f4f093f13654473ff14457b616d257 |
memory/3760-13-0x0000000074F00000-0x00000000754B1000-memory.dmp
memory/844-12-0x0000000074F00000-0x00000000754B1000-memory.dmp
memory/3760-14-0x0000000074F00000-0x00000000754B1000-memory.dmp
memory/3760-16-0x0000000074F00000-0x00000000754B1000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-28 10:03
Reported
2024-09-28 10:05
Platform
win7-20240704-en
Max time kernel
149s
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 |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e43cca706d59e01c80fe2fae1742de3f.exe | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e43cca706d59e01c80fe2fae1742de3f.exe | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\e43cca706d59e01c80fe2fae1742de3f = "\"C:\\Users\\Admin\\AppData\\Roaming\\igfxCUIService.exe\" .." | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\e43cca706d59e01c80fe2fae1742de3f = "\"C:\\Users\\Admin\\AppData\\Roaming\\igfxCUIService.exe\" .." | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | N/A |
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
| Description | Indicator | Process | Target |
| 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 |
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\4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\igfxCUIService.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\netsh.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe
"C:\Users\Admin\AppData\Local\Temp\4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3.exe"
C:\Users\Admin\AppData\Roaming\igfxCUIService.exe
"C:\Users\Admin\AppData\Roaming\igfxCUIService.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\igfxCUIService.exe" "igfxCUIService.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | yano.ddns.net | udp |
Files
memory/2960-2-0x0000000074420000-0x00000000749CB000-memory.dmp
memory/2960-1-0x0000000074420000-0x00000000749CB000-memory.dmp
memory/2960-0-0x0000000074421000-0x0000000074422000-memory.dmp
\Users\Admin\AppData\Roaming\igfxCUIService.exe
| MD5 | 4a1a0fa8fed53f3be3b26d4e2f38444b |
| SHA1 | f23d93559345eed220ad8292d43e48d35c203d52 |
| SHA256 | 4c42f6a7027df50fff5e175148e29c9fdcde33a77cde36eee1dd8aa121f1fec3 |
| SHA512 | e7b7ef9a30424fa3545174e44aeea33e01c583400bb2a6a0eafe38adb9c33e1506ca5d5d2ea22b72796f858545a7702bd5f4f093f13654473ff14457b616d257 |
memory/2432-11-0x0000000074420000-0x00000000749CB000-memory.dmp
memory/2432-12-0x0000000074420000-0x00000000749CB000-memory.dmp
memory/2960-10-0x0000000074420000-0x00000000749CB000-memory.dmp
memory/2432-14-0x0000000074420000-0x00000000749CB000-memory.dmp