Analysis Overview
SHA256
3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717
Threat Level: Known bad
The file 3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N was found to be: Known bad.
Malicious Activity Summary
njRAT/Bladabindi
Njrat family
Modifies Windows Firewall
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Unsigned PE
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-05 05:40
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-05 05:40
Reported
2024-10-05 05:42
Platform
win7-20240708-en
Max time kernel
119s
Max time network
116s
Command Line
Signatures
njRAT/Bladabindi
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." | C:\Users\Admin\AppData\Local\Temp\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 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\3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\server.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\3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N.exe
"C:\Users\Admin\AppData\Local\Temp\3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N.exe"
C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| N/A | 10.10.1.11:5552 | tcp | |
| N/A | 10.10.1.11:5552 | tcp | |
| N/A | 10.10.1.11:5552 | tcp | |
| N/A | 10.10.1.11:5552 | tcp | |
| N/A | 10.10.1.11:5552 | tcp |
Files
memory/2568-0-0x0000000074921000-0x0000000074922000-memory.dmp
memory/2568-1-0x0000000074920000-0x0000000074ECB000-memory.dmp
memory/2568-2-0x0000000074920000-0x0000000074ECB000-memory.dmp
\Users\Admin\AppData\Local\Temp\server.exe
| MD5 | e31c0b9b4e622689403675985761b9c0 |
| SHA1 | 56931405ba252d390706d6d09687edfd8e0c8001 |
| SHA256 | 3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717 |
| SHA512 | e39e066f6934dc20e40c235438d247a768b02d35378bf936fce4f9c05ea831bbc082445cc382ce3e2af9fdec8965d86519f2c4947822059cd20856f54261adce |
memory/2544-11-0x0000000074920000-0x0000000074ECB000-memory.dmp
memory/2544-10-0x0000000074920000-0x0000000074ECB000-memory.dmp
memory/2568-12-0x0000000074920000-0x0000000074ECB000-memory.dmp
memory/2544-13-0x0000000074920000-0x0000000074ECB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-05 05:40
Reported
2024-10-05 05:42
Platform
win10v2004-20240802-en
Max time kernel
120s
Max time network
115s
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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\server.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\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." | C:\Users\Admin\AppData\Local\Temp\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 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\3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\server.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 1584 wrote to memory of 1068 | N/A | C:\Users\Admin\AppData\Local\Temp\3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 1584 wrote to memory of 1068 | N/A | C:\Users\Admin\AppData\Local\Temp\3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 1584 wrote to memory of 1068 | N/A | C:\Users\Admin\AppData\Local\Temp\3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 1068 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 1068 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 1068 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N.exe
"C:\Users\Admin\AppData\Local\Temp\3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717N.exe"
C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\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 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| N/A | 10.10.1.11:5552 | tcp | |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| N/A | 10.10.1.11:5552 | tcp | |
| N/A | 10.10.1.11:5552 | tcp | |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| N/A | 10.10.1.11:5552 | tcp | |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| N/A | 10.10.1.11:5552 | tcp |
Files
memory/1584-0-0x0000000074832000-0x0000000074833000-memory.dmp
memory/1584-1-0x0000000074830000-0x0000000074DE1000-memory.dmp
memory/1584-2-0x0000000074830000-0x0000000074DE1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\server.exe
| MD5 | e31c0b9b4e622689403675985761b9c0 |
| SHA1 | 56931405ba252d390706d6d09687edfd8e0c8001 |
| SHA256 | 3f8b1f4d1c42bcaed4a709ef637e7f6853c6715dfb0d12b484dec5fdee2c8717 |
| SHA512 | e39e066f6934dc20e40c235438d247a768b02d35378bf936fce4f9c05ea831bbc082445cc382ce3e2af9fdec8965d86519f2c4947822059cd20856f54261adce |
memory/1584-12-0x0000000074830000-0x0000000074DE1000-memory.dmp
memory/1068-14-0x0000000074830000-0x0000000074DE1000-memory.dmp
memory/1068-13-0x0000000074830000-0x0000000074DE1000-memory.dmp
memory/1068-15-0x0000000074830000-0x0000000074DE1000-memory.dmp
memory/1068-16-0x0000000074830000-0x0000000074DE1000-memory.dmp