Analysis Overview
SHA256
d6ba44d56611edaa6d9f4cbad5632a8b4f1c4b48cef1a8c25be55207c0bfa9ad
Threat Level: Known bad
The file d6ba44d56611edaa6d9f4cbad5632a8b4f1c4b48cef1a8c25be55207c0bfa9ad was found to be: Known bad.
Malicious Activity Summary
Yunsip
Yunsip family
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-24 03:49
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-24 03:49
Reported
2024-11-24 03:52
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
149s
Command Line
Signatures
Yunsip
Yunsip family
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2320 wrote to memory of 2540 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2320 wrote to memory of 2540 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2320 wrote to memory of 2540 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d6ba44d56611edaa6d9f4cbad5632a8b4f1c4b48cef1a8c25be55207c0bfa9ad.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d6ba44d56611edaa6d9f4cbad5632a8b4f1c4b48cef1a8c25be55207c0bfa9ad.dll,#1
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-24 03:49
Reported
2024-11-24 03:51
Platform
win7-20241010-en
Max time kernel
122s
Max time network
122s
Command Line
Signatures
Yunsip
Yunsip family
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1796 wrote to memory of 1712 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1796 wrote to memory of 1712 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1796 wrote to memory of 1712 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1796 wrote to memory of 1712 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1796 wrote to memory of 1712 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1796 wrote to memory of 1712 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1796 wrote to memory of 1712 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d6ba44d56611edaa6d9f4cbad5632a8b4f1c4b48cef1a8c25be55207c0bfa9ad.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d6ba44d56611edaa6d9f4cbad5632a8b4f1c4b48cef1a8c25be55207c0bfa9ad.dll,#1