Analysis Overview
SHA256
25cde0a920664811bb924b2b96f14624fc74405edab173082202092c60eeedcc
Threat Level: Known bad
The file Fallo_Fiscal_Procesado_N°_49298490.tbz2 was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Asyncrat family
Adds Run key to start application
Suspicious use of SetThreadContext
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-13 00:34
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-13 00:34
Reported
2024-11-13 00:35
Platform
win7-20240903-en
Max time kernel
16s
Max time network
19s
Command Line
Signatures
AsyncRat
Asyncrat family
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\IsaccEditorDesigner = "C:\\Users\\Admin\\Music\\IsaccDesignUpdater\\IsaccVideo.exe" | C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2292 set thread context of 1900 | N/A | C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.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\Fallo_Fiscal_Procesado_N°_49298490..exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe
"C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | Mystudio201.casacam.net | udp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
Files
memory/2292-1-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/2292-0-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/2292-2-0x000000000050D000-0x0000000000525000-memory.dmp
memory/2292-3-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/2292-6-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/2292-5-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/2292-7-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/1900-10-0x0000000000080000-0x0000000000092000-memory.dmp
memory/2292-11-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/2292-12-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/1900-16-0x0000000000080000-0x0000000000092000-memory.dmp
memory/1900-14-0x0000000000080000-0x0000000000092000-memory.dmp
memory/1900-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/1900-8-0x0000000000080000-0x0000000000092000-memory.dmp
memory/1900-17-0x0000000074ACE000-0x0000000074ACF000-memory.dmp
memory/1900-18-0x0000000074AC0000-0x00000000751AE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-13 00:34
Reported
2024-11-13 00:45
Platform
win10v2004-20241007-en
Max time kernel
590s
Max time network
598s
Command Line
Signatures
AsyncRat
Asyncrat family
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IsaccEditorDesigner = "C:\\Users\\Admin\\Music\\IsaccDesignUpdater\\IsaccVideo.exe" | C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4440 set thread context of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.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\Fallo_Fiscal_Procesado_N°_49298490..exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4440 wrote to memory of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
| PID 4440 wrote to memory of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
| PID 4440 wrote to memory of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
| PID 4440 wrote to memory of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
| PID 4440 wrote to memory of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe
"C:\Users\Admin\AppData\Local\Temp\Fallo_Fiscal_Procesado_N°_49298490..exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | Mystudio201.casacam.net | udp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.190.18.2.in-addr.arpa | udp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| US | 8.8.8.8:53 | Mystudio201.casacam.net | udp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| US | 8.8.8.8:53 | 1.173.189.20.in-addr.arpa | udp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| US | 8.8.8.8:53 | Mystudio201.casacam.net | udp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| US | 8.8.8.8:53 | Mystudio201.casacam.net | udp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| US | 8.8.8.8:53 | Mystudio201.casacam.net | udp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
| CO | 186.169.53.104:8853 | Mystudio201.casacam.net | tcp |
Files
memory/4440-0-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/4440-1-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/2888-8-0x0000000000B60000-0x0000000000B72000-memory.dmp
memory/4440-7-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/4440-6-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/4440-5-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/4440-9-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/4440-11-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/4440-4-0x0000000000400000-0x00000000007F5000-memory.dmp
memory/4440-2-0x000000000050D000-0x0000000000525000-memory.dmp
memory/2888-12-0x0000000074A9E000-0x0000000074A9F000-memory.dmp
memory/2888-13-0x0000000074A90000-0x0000000075240000-memory.dmp
memory/2888-15-0x0000000074A90000-0x0000000075240000-memory.dmp