Analysis Overview
SHA256
a0e7f92466f2684014a40a22f7488478ab07fc36e1df6c7dacb9c29063ff69d6
Threat Level: Known bad
The file gwr4j809gbrej089.exe was found to be: Known bad.
Malicious Activity Summary
njRAT/Bladabindi
Njrat family
Modifies Windows Firewall
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-19 05:27
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-19 05:27
Reported
2024-01-19 05:29
Platform
win7-20231129-en
Max time kernel
149s
Max time network
139s
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\gwr4j809gbrej089.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\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
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\gwr4j809gbrej089.exe
"C:\Users\Admin\AppData\Local\Temp\gwr4j809gbrej089.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 | |
| N/A | 10.10.1.11:5552 | tcp |
Files
memory/1244-0-0x0000000074ED0000-0x000000007547B000-memory.dmp
memory/1244-2-0x0000000000B90000-0x0000000000BD0000-memory.dmp
memory/1244-1-0x0000000074ED0000-0x000000007547B000-memory.dmp
memory/2928-12-0x00000000020C0000-0x0000000002100000-memory.dmp
memory/2928-11-0x0000000074ED0000-0x000000007547B000-memory.dmp
memory/1244-10-0x0000000074ED0000-0x000000007547B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\server.exe
| MD5 | 476cbad4b571f2b67d584513386ebd2d |
| SHA1 | 17d3a11fedbf7750ddff2cdbf3e4d236f0e19282 |
| SHA256 | a0e7f92466f2684014a40a22f7488478ab07fc36e1df6c7dacb9c29063ff69d6 |
| SHA512 | d50a7565026c76204c13a0dd0d5bc9574468bf841d6f75c223dce95f7ce7f21ce512e6b7dc67ca2fd3452410bed4f57fa9be80b798d98e16af2b3a7437e99c80 |
memory/2928-14-0x00000000020C0000-0x0000000002100000-memory.dmp
memory/2928-13-0x0000000074ED0000-0x000000007547B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-19 05:27
Reported
2024-01-19 05:29
Platform
win10v2004-20231222-en
Max time kernel
149s
Max time network
146s
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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\gwr4j809gbrej089.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-1-5-21-3803511929-1339359695-2191195476-1000\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
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1648 wrote to memory of 4472 | N/A | C:\Users\Admin\AppData\Local\Temp\gwr4j809gbrej089.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 1648 wrote to memory of 4472 | N/A | C:\Users\Admin\AppData\Local\Temp\gwr4j809gbrej089.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 1648 wrote to memory of 4472 | N/A | C:\Users\Admin\AppData\Local\Temp\gwr4j809gbrej089.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 4472 wrote to memory of 2784 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 4472 wrote to memory of 2784 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 4472 wrote to memory of 2784 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\gwr4j809gbrej089.exe
"C:\Users\Admin\AppData\Local\Temp\gwr4j809gbrej089.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 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| N/A | 10.10.1.11:5552 | tcp | |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| N/A | 10.10.1.11:5552 | tcp | |
| N/A | 10.10.1.11:5552 | tcp | |
| N/A | 10.10.1.11:5552 | tcp | |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| N/A | 10.10.1.11:5552 | tcp | |
| N/A | 10.10.1.11:5552 | tcp |
Files
memory/1648-2-0x0000000074CB0000-0x0000000075261000-memory.dmp
memory/1648-1-0x00000000018F0000-0x0000000001900000-memory.dmp
memory/1648-0-0x0000000074CB0000-0x0000000075261000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\server.exe
| MD5 | 476cbad4b571f2b67d584513386ebd2d |
| SHA1 | 17d3a11fedbf7750ddff2cdbf3e4d236f0e19282 |
| SHA256 | a0e7f92466f2684014a40a22f7488478ab07fc36e1df6c7dacb9c29063ff69d6 |
| SHA512 | d50a7565026c76204c13a0dd0d5bc9574468bf841d6f75c223dce95f7ce7f21ce512e6b7dc67ca2fd3452410bed4f57fa9be80b798d98e16af2b3a7437e99c80 |
memory/1648-13-0x0000000074CB0000-0x0000000075261000-memory.dmp
memory/4472-15-0x0000000074CB0000-0x0000000075261000-memory.dmp
memory/4472-14-0x00000000016D0000-0x00000000016E0000-memory.dmp
memory/4472-12-0x0000000074CB0000-0x0000000075261000-memory.dmp
memory/4472-16-0x00000000016D0000-0x00000000016E0000-memory.dmp
memory/4472-17-0x0000000074CB0000-0x0000000075261000-memory.dmp