Analysis Overview
SHA256
0e19cefba973323c234322452dfd04e318f14809375090b4f6ab39282f6ba07e
Threat Level: Known bad
The file Stub.exe was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Async RAT payload
Asyncrat family
Unsigned PE
Program crash
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-12 23:30
Signatures
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Asyncrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-12 23:30
Reported
2024-11-12 23:32
Platform
win7-20241010-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
AsyncRat
Asyncrat family
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\Stub.exe |
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\Stub.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2372 wrote to memory of 2712 | N/A | C:\Users\Admin\AppData\Local\Temp\Stub.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2372 wrote to memory of 2712 | N/A | C:\Users\Admin\AppData\Local\Temp\Stub.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2372 wrote to memory of 2712 | N/A | C:\Users\Admin\AppData\Local\Temp\Stub.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2372 wrote to memory of 2712 | N/A | C:\Users\Admin\AppData\Local\Temp\Stub.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Stub.exe
"C:\Users\Admin\AppData\Local\Temp\Stub.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 516
Network
Files
memory/2372-0-0x0000000073F5E000-0x0000000073F5F000-memory.dmp
memory/2372-1-0x0000000000100000-0x0000000000110000-memory.dmp
memory/2372-2-0x0000000073F5E000-0x0000000073F5F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-12 23:30
Reported
2024-11-12 23:32
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
139s
Command Line
Signatures
AsyncRat
Asyncrat family
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\Stub.exe |
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\Stub.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Stub.exe
"C:\Users\Admin\AppData\Local\Temp\Stub.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1848 -ip 1848
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1848 -s 744
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
Files
memory/1848-0-0x000000007524E000-0x000000007524F000-memory.dmp
memory/1848-1-0x00000000007D0000-0x00000000007E0000-memory.dmp