Analysis Overview
SHA256
ef66e195b16d21be098863d08ef732915df47835b42b7641a7fc915f690b508e
Threat Level: Known bad
The file ef66e195b16d21be098863d08ef732915df47835b42b7641a7fc915f690b508eN was found to be: Known bad.
Malicious Activity Summary
njRAT/Bladabindi
Njrat family
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-04 15:55
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-04 15:55
Reported
2024-10-04 15:58
Platform
win7-20240903-en
Max time kernel
110s
Max time network
21s
Command Line
Signatures
njRAT/Bladabindi
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\ef66e195b16d21be098863d08ef732915df47835b42b7641a7fc915f690b508eN.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\_auto_file | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\_auto_file\ | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\_auto_file\shell\Read | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\_auto_file\shell | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\_auto_file\shell\Read\command | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ef66e195b16d21be098863d08ef732915df47835b42b7641a7fc915f690b508eN.exe
"C:\Users\Admin\AppData\Local\Temp\ef66e195b16d21be098863d08ef732915df47835b42b7641a7fc915f690b508eN.exe"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\NWA
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\NWA"
Network
Files
memory/1088-0-0x00000000743C1000-0x00000000743C2000-memory.dmp
memory/1088-1-0x00000000743C0000-0x000000007496B000-memory.dmp
memory/1088-2-0x00000000743C0000-0x000000007496B000-memory.dmp
memory/1088-5-0x00000000743C0000-0x000000007496B000-memory.dmp
C:\Users\Admin\AppData\Roaming\NWA
| MD5 | c57af69431740be4a691d5d749265c90 |
| SHA1 | 1dcf40896ee9a465a9408a58f2e8896fe55fa3ee |
| SHA256 | ef66e195b16d21be098863d08ef732915df47835b42b7641a7fc915f690b508e |
| SHA512 | d861c392677e6b044109093db58562cb5c73a8eefc52ed978cae927a64291c49aea7bbafe2b3afa6426d75c49172f1651fe639a04afe45daa07759612948cae8 |
C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
| MD5 | 6f81f8465428ae258c4b5e86c32e10f1 |
| SHA1 | 6721568f1aa4356fdced4a2205537ee433b3306c |
| SHA256 | db8bd4601085aa1b90aa587cb3a0932db0e8ffaa826fd866a3521d539606d623 |
| SHA512 | 63270d7f81df627f268eef886b55cac8a232b044621a71cb885347b8cd36bce30174b01fc0cb58dddd649a7a9225453315f8798d0cee0b3389c79882cec1beaa |
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-04 15:55
Reported
2024-10-04 15:57
Platform
win10v2004-20240802-en
Max time kernel
92s
Max time network
94s
Command Line
Signatures
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\ef66e195b16d21be098863d08ef732915df47835b42b7641a7fc915f690b508eN.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\ef66e195b16d21be098863d08ef732915df47835b42b7641a7fc915f690b508eN.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\Local Settings | C:\Windows\system32\OpenWith.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\OpenWith.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\ef66e195b16d21be098863d08ef732915df47835b42b7641a7fc915f690b508eN.exe
"C:\Users\Admin\AppData\Local\Temp\ef66e195b16d21be098863d08ef732915df47835b42b7641a7fc915f690b508eN.exe"
C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.209.201.84.in-addr.arpa | udp |
Files
memory/3132-0-0x00000000753E2000-0x00000000753E3000-memory.dmp
memory/3132-1-0x00000000753E0000-0x0000000075991000-memory.dmp
memory/3132-2-0x00000000753E0000-0x0000000075991000-memory.dmp
memory/3132-6-0x00000000753E0000-0x0000000075991000-memory.dmp