Analysis Overview
SHA256
f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d
Threat Level: Known bad
The file f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d was found to be: Known bad.
Malicious Activity Summary
Njrat family
njRAT/Bladabindi
Modifies Windows Firewall
Executes dropped EXE
Loads dropped DLL
Drops startup file
Checks computer location settings
Adds Run key to start application
Drops autorun.inf file
Unsigned PE
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-20 11:23
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-20 11:23
Reported
2024-07-20 11:26
Platform
win7-20240704-en
Max time kernel
150s
Max time network
148s
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\ff08ef465dd80a9af68f3e1ab659a49e.exe | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ff08ef465dd80a9af68f3e1ab659a49e.exe | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\ff08ef465dd80a9af68f3e1ab659a49e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.exe\" .." | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ff08ef465dd80a9af68f3e1ab659a49e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.exe\" .." | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
Drops autorun.inf file
| Description | Indicator | Process | Target |
| File created | F:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| File opened for modification | F:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| File created | C:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| File opened for modification | C:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| File created | D:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\System.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 |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d.exe
"C:\Users\Admin\AppData\Local\Temp\f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d.exe"
C:\Users\Admin\AppData\Local\Temp\System.exe
"C:\Users\Admin\AppData\Local\Temp\System.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System.exe" "System.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| US | 147.185.221.21:19455 | tcp | |
| US | 147.185.221.21:19455 | tcp | |
| US | 147.185.221.21:19455 | tcp | |
| US | 147.185.221.21:19455 | tcp | |
| US | 147.185.221.21:19455 | tcp | |
| US | 147.185.221.21:19455 | tcp | |
| US | 147.185.221.21:19455 | tcp |
Files
memory/3064-0-0x0000000074821000-0x0000000074822000-memory.dmp
memory/3064-1-0x0000000074820000-0x0000000074DCB000-memory.dmp
memory/3064-2-0x0000000074820000-0x0000000074DCB000-memory.dmp
\Users\Admin\AppData\Local\Temp\System.exe
| MD5 | 83d83edd49fbe175f330b855135b7812 |
| SHA1 | 7a88ba7b0b6f44af5945ee5aa0494f84b0b78e25 |
| SHA256 | f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d |
| SHA512 | 9a66de9e038234a36b8b3912ebe931c4fc0d839fb71bbd95014e3fbd4ebaeeda45fd2ed462e18cdef1edf2a9247b04ee90e1d185020a789457b01b90e3f4fd71 |
memory/3064-13-0x0000000074820000-0x0000000074DCB000-memory.dmp
memory/2320-15-0x0000000074820000-0x0000000074DCB000-memory.dmp
memory/2320-14-0x0000000074820000-0x0000000074DCB000-memory.dmp
memory/2320-25-0x0000000074820000-0x0000000074DCB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-20 11:23
Reported
2024-07-20 11:26
Platform
win10v2004-20240709-en
Max time kernel
150s
Max time network
150s
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-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ff08ef465dd80a9af68f3e1ab659a49e.exe | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ff08ef465dd80a9af68f3e1ab659a49e.exe | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ff08ef465dd80a9af68f3e1ab659a49e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.exe\" .." | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ff08ef465dd80a9af68f3e1ab659a49e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.exe\" .." | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
Drops autorun.inf file
| Description | Indicator | Process | Target |
| File opened for modification | C:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| File created | D:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| File created | F:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| File opened for modification | F:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
| File created | C:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\System.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 |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\System.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2336 wrote to memory of 3664 | N/A | C:\Users\Admin\AppData\Local\Temp\f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d.exe | C:\Users\Admin\AppData\Local\Temp\System.exe |
| PID 2336 wrote to memory of 3664 | N/A | C:\Users\Admin\AppData\Local\Temp\f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d.exe | C:\Users\Admin\AppData\Local\Temp\System.exe |
| PID 2336 wrote to memory of 3664 | N/A | C:\Users\Admin\AppData\Local\Temp\f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d.exe | C:\Users\Admin\AppData\Local\Temp\System.exe |
| PID 3664 wrote to memory of 4476 | N/A | C:\Users\Admin\AppData\Local\Temp\System.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 3664 wrote to memory of 4476 | N/A | C:\Users\Admin\AppData\Local\Temp\System.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 3664 wrote to memory of 4476 | N/A | C:\Users\Admin\AppData\Local\Temp\System.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d.exe
"C:\Users\Admin\AppData\Local\Temp\f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d.exe"
C:\Users\Admin\AppData\Local\Temp\System.exe
"C:\Users\Admin\AppData\Local\Temp\System.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System.exe" "System.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 147.185.221.21:19455 | tcp | |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 147.185.221.21:19455 | tcp | |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 147.185.221.21:19455 | tcp | |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 147.185.221.21:19455 | 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 | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 147.185.221.21:19455 | tcp | |
| US | 147.185.221.21:19455 | tcp | |
| US | 8.8.8.8:53 | udp |
Files
memory/2336-0-0x00000000749A2000-0x00000000749A3000-memory.dmp
memory/2336-1-0x00000000749A0000-0x0000000074F51000-memory.dmp
memory/2336-2-0x00000000749A0000-0x0000000074F51000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\System.exe
| MD5 | 83d83edd49fbe175f330b855135b7812 |
| SHA1 | 7a88ba7b0b6f44af5945ee5aa0494f84b0b78e25 |
| SHA256 | f67be796c76c62a9b4763403ebbb62ceb07d567f1c76386445fb99b7f807d46d |
| SHA512 | 9a66de9e038234a36b8b3912ebe931c4fc0d839fb71bbd95014e3fbd4ebaeeda45fd2ed462e18cdef1edf2a9247b04ee90e1d185020a789457b01b90e3f4fd71 |
memory/2336-12-0x00000000749A0000-0x0000000074F51000-memory.dmp
memory/3664-13-0x00000000749A0000-0x0000000074F51000-memory.dmp
memory/3664-15-0x00000000749A0000-0x0000000074F51000-memory.dmp
memory/3664-14-0x00000000749A0000-0x0000000074F51000-memory.dmp
memory/3664-25-0x00000000749A0000-0x0000000074F51000-memory.dmp