Analysis Overview
SHA256
a33a3bd84a6be254fdf4cfc0ad6cb9264a939f04ce98eb376944f13ec4ae74d3
Threat Level: Known bad
The file epolizer.exe was found to be: Known bad.
Malicious Activity Summary
Njrat family
njRAT/Bladabindi
Modifies Windows Firewall
Drops startup file
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-17 03:04
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-17 03:04
Reported
2024-01-17 03:06
Platform
win10v2004-20231215-en
Max time kernel
150s
Max time network
155s
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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\epolizer.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e0d9528ae802acc08bc47fdf4f0fa2b2.exe | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e0d9528ae802acc08bc47fdf4f0fa2b2.exe | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e0d9528ae802acc08bc47fdf4f0fa2b2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .." | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\e0d9528ae802acc08bc47fdf4f0fa2b2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .." | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 948 wrote to memory of 4772 | N/A | C:\Users\Admin\AppData\Local\Temp\epolizer.exe | C:\Users\Admin\AppData\Roaming\server.exe |
| PID 948 wrote to memory of 4772 | N/A | C:\Users\Admin\AppData\Local\Temp\epolizer.exe | C:\Users\Admin\AppData\Roaming\server.exe |
| PID 948 wrote to memory of 4772 | N/A | C:\Users\Admin\AppData\Local\Temp\epolizer.exe | C:\Users\Admin\AppData\Roaming\server.exe |
| PID 4772 wrote to memory of 1708 | N/A | C:\Users\Admin\AppData\Roaming\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 4772 wrote to memory of 1708 | N/A | C:\Users\Admin\AppData\Roaming\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 4772 wrote to memory of 1708 | N/A | C:\Users\Admin\AppData\Roaming\server.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\epolizer.exe
"C:\Users\Admin\AppData\Local\Temp\epolizer.exe"
C:\Users\Admin\AppData\Roaming\server.exe
"C:\Users\Admin\AppData\Roaming\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | bit-number.gl.at.ply.gg | udp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 17.221.185.147.in-addr.arpa | udp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 26.73.42.20.in-addr.arpa | udp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
Files
memory/948-0-0x0000000074E20000-0x00000000753D1000-memory.dmp
memory/948-2-0x0000000001310000-0x0000000001320000-memory.dmp
memory/948-1-0x0000000074E20000-0x00000000753D1000-memory.dmp
C:\Users\Admin\AppData\Roaming\server.exe
| MD5 | 5eaeb36796615de2cd46d48149c60123 |
| SHA1 | c918fc01d7d2f90353d261891d9316f796d3c735 |
| SHA256 | a33a3bd84a6be254fdf4cfc0ad6cb9264a939f04ce98eb376944f13ec4ae74d3 |
| SHA512 | 60323b5c9852ade1ad1a9cfc2c24430702bcd6ce907c4b982ecc9aa59509baa677729baeb432b155b762b5aa1f18a3160c1d786bfe629eb4f69a0b6d0914b142 |
memory/4772-13-0x0000000074E20000-0x00000000753D1000-memory.dmp
memory/948-12-0x0000000074E20000-0x00000000753D1000-memory.dmp
memory/4772-14-0x00000000011E0000-0x00000000011F0000-memory.dmp
memory/4772-15-0x0000000074E20000-0x00000000753D1000-memory.dmp
memory/4772-17-0x00000000011E0000-0x00000000011F0000-memory.dmp
memory/4772-18-0x0000000074E20000-0x00000000753D1000-memory.dmp
memory/4772-19-0x00000000011E0000-0x00000000011F0000-memory.dmp
memory/4772-20-0x00000000011E0000-0x00000000011F0000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-17 03:04
Reported
2024-01-17 03:06
Platform
win7-20231215-en
Max time kernel
150s
Max time network
152s
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\e0d9528ae802acc08bc47fdf4f0fa2b2.exe | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e0d9528ae802acc08bc47fdf4f0fa2b2.exe | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\epolizer.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Windows\CurrentVersion\Run\e0d9528ae802acc08bc47fdf4f0fa2b2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .." | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\e0d9528ae802acc08bc47fdf4f0fa2b2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .." | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\server.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1992 wrote to memory of 1400 | N/A | C:\Users\Admin\AppData\Local\Temp\epolizer.exe | C:\Users\Admin\AppData\Roaming\server.exe |
| PID 1992 wrote to memory of 1400 | N/A | C:\Users\Admin\AppData\Local\Temp\epolizer.exe | C:\Users\Admin\AppData\Roaming\server.exe |
| PID 1992 wrote to memory of 1400 | N/A | C:\Users\Admin\AppData\Local\Temp\epolizer.exe | C:\Users\Admin\AppData\Roaming\server.exe |
| PID 1992 wrote to memory of 1400 | N/A | C:\Users\Admin\AppData\Local\Temp\epolizer.exe | C:\Users\Admin\AppData\Roaming\server.exe |
| PID 1400 wrote to memory of 1936 | N/A | C:\Users\Admin\AppData\Roaming\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 1400 wrote to memory of 1936 | N/A | C:\Users\Admin\AppData\Roaming\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 1400 wrote to memory of 1936 | N/A | C:\Users\Admin\AppData\Roaming\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 1400 wrote to memory of 1936 | N/A | C:\Users\Admin\AppData\Roaming\server.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\epolizer.exe
"C:\Users\Admin\AppData\Local\Temp\epolizer.exe"
C:\Users\Admin\AppData\Roaming\server.exe
"C:\Users\Admin\AppData\Roaming\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | bit-number.gl.at.ply.gg | udp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
| US | 147.185.221.17:53003 | bit-number.gl.at.ply.gg | tcp |
Files
memory/1992-0-0x0000000074530000-0x0000000074ADB000-memory.dmp
memory/1992-1-0x0000000074530000-0x0000000074ADB000-memory.dmp
memory/1992-2-0x0000000000260000-0x00000000002A0000-memory.dmp
\Users\Admin\AppData\Roaming\server.exe
| MD5 | 5eaeb36796615de2cd46d48149c60123 |
| SHA1 | c918fc01d7d2f90353d261891d9316f796d3c735 |
| SHA256 | a33a3bd84a6be254fdf4cfc0ad6cb9264a939f04ce98eb376944f13ec4ae74d3 |
| SHA512 | 60323b5c9852ade1ad1a9cfc2c24430702bcd6ce907c4b982ecc9aa59509baa677729baeb432b155b762b5aa1f18a3160c1d786bfe629eb4f69a0b6d0914b142 |
memory/1400-10-0x0000000074530000-0x0000000074ADB000-memory.dmp
memory/1992-11-0x0000000074530000-0x0000000074ADB000-memory.dmp
memory/1400-12-0x0000000000610000-0x0000000000650000-memory.dmp
memory/1400-14-0x0000000074530000-0x0000000074ADB000-memory.dmp
memory/1400-15-0x0000000000610000-0x0000000000650000-memory.dmp