Analysis Overview
SHA256
253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894
Threat Level: Known bad
The file 253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe was found to be: Known bad.
Malicious Activity Summary
Njrat family
njRAT/Bladabindi
Checks computer location settings
Executes dropped EXE
Drops startup file
Loads dropped DLL
Adds Run key to start application
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: GetForegroundWindowSpam
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-28 07:49
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-28 07:49
Reported
2024-09-28 07:51
Platform
win7-20240903-en
Max time kernel
149s
Max time network
123s
Command Line
Signatures
njRAT/Bladabindi
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.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\Java update.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\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"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\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dllhost.exe\" .." | C:\Users\Admin\AppData\Local\Temp\Dllhost.exe | N/A |
Enumerates physical storage devices
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\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Dllhost.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | N/A |
| 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 2956 wrote to memory of 3016 | N/A | C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | C:\Users\Admin\AppData\Local\Temp\Dllhost.exe |
| PID 2956 wrote to memory of 3016 | N/A | C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | C:\Users\Admin\AppData\Local\Temp\Dllhost.exe |
| PID 2956 wrote to memory of 3016 | N/A | C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | C:\Users\Admin\AppData\Local\Temp\Dllhost.exe |
| PID 2956 wrote to memory of 3016 | N/A | C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | C:\Users\Admin\AppData\Local\Temp\Dllhost.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe
"C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe"
C:\Users\Admin\AppData\Local\Temp\Dllhost.exe
"C:\Users\Admin\AppData\Local\Temp\Dllhost.exe"
Network
Files
memory/2956-0-0x0000000074C81000-0x0000000074C82000-memory.dmp
memory/2956-1-0x0000000074C80000-0x000000007522B000-memory.dmp
memory/2956-2-0x0000000074C80000-0x000000007522B000-memory.dmp
\Users\Admin\AppData\Local\Temp\Dllhost.exe
| MD5 | fa730ba7926d985677d9d33d0f714509 |
| SHA1 | 3c0396c78d4b50a147522f9a64eef0387874215e |
| SHA256 | 253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894 |
| SHA512 | efb111e8fcb31e7609219bf5c5ae4ba9ec467cdb9f6f539ee1bc5bc91493adce9ee57f7f8a24e77fa29abbd991fd32355f9d6a367bee3fa2396c4c3a8bfe4e57 |
memory/3016-11-0x0000000074C80000-0x000000007522B000-memory.dmp
memory/3016-10-0x0000000074C80000-0x000000007522B000-memory.dmp
memory/2956-12-0x0000000074C80000-0x000000007522B000-memory.dmp
memory/3016-14-0x0000000074C80000-0x000000007522B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-28 07:49
Reported
2024-09-28 07:51
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
145s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.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\Java update.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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"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\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dllhost.exe\" .." | C:\Users\Admin\AppData\Local\Temp\Dllhost.exe | N/A |
Enumerates physical storage devices
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\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Dllhost.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | N/A |
| 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 4984 wrote to memory of 1544 | N/A | C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | C:\Users\Admin\AppData\Local\Temp\Dllhost.exe |
| PID 4984 wrote to memory of 1544 | N/A | C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | C:\Users\Admin\AppData\Local\Temp\Dllhost.exe |
| PID 4984 wrote to memory of 1544 | N/A | C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe | C:\Users\Admin\AppData\Local\Temp\Dllhost.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe
"C:\Users\Admin\AppData\Local\Temp\253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894.exe"
C:\Users\Admin\AppData\Local\Temp\Dllhost.exe
"C:\Users\Admin\AppData\Local\Temp\Dllhost.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/4984-0-0x00000000749D2000-0x00000000749D3000-memory.dmp
memory/4984-1-0x00000000749D0000-0x0000000074F81000-memory.dmp
memory/4984-2-0x00000000749D0000-0x0000000074F81000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Dllhost.exe
| MD5 | fa730ba7926d985677d9d33d0f714509 |
| SHA1 | 3c0396c78d4b50a147522f9a64eef0387874215e |
| SHA256 | 253d2bc02e9a0b835ce9c7bf6f05bc9fa33bc60ddfb71f1da3de26befa103894 |
| SHA512 | efb111e8fcb31e7609219bf5c5ae4ba9ec467cdb9f6f539ee1bc5bc91493adce9ee57f7f8a24e77fa29abbd991fd32355f9d6a367bee3fa2396c4c3a8bfe4e57 |
memory/4984-13-0x00000000749D0000-0x0000000074F81000-memory.dmp
memory/1544-12-0x00000000749D0000-0x0000000074F81000-memory.dmp
memory/1544-15-0x00000000749D0000-0x0000000074F81000-memory.dmp