Analysis Overview
SHA256
5ca03b35e8073165542c05981384ca00441059410ed61d0e5ab1294b1d68bf3f
Threat Level: Known bad
The file 5ca03b35e8073165542c05981384ca00441059410ed61d0e5ab1294b1d68bf3f was found to be: Known bad.
Malicious Activity Summary
Yunsip
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-10-20 21:20
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-20 21:20
Reported
2022-10-21 00:56
Platform
win7-20220812-en
Max time kernel
39s
Max time network
44s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1116 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1116 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1116 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1116 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1116 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1116 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1116 wrote to memory of 2032 | 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\5ca03b35e8073165542c05981384ca00441059410ed61d0e5ab1294b1d68bf3f.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5ca03b35e8073165542c05981384ca00441059410ed61d0e5ab1294b1d68bf3f.dll,#1
Network
Files
memory/2032-54-0x0000000000000000-mapping.dmp
memory/2032-55-0x0000000076681000-0x0000000076683000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-20 21:20
Reported
2022-10-21 00:56
Platform
win10v2004-20220812-en
Max time kernel
112s
Max time network
140s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3112 wrote to memory of 5112 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3112 wrote to memory of 5112 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3112 wrote to memory of 5112 | 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\5ca03b35e8073165542c05981384ca00441059410ed61d0e5ab1294b1d68bf3f.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5ca03b35e8073165542c05981384ca00441059410ed61d0e5ab1294b1d68bf3f.dll,#1
Network
| Country | Destination | Domain | Proto |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| IE | 13.69.239.72:443 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| NL | 104.80.225.205:443 | tcp |
Files
memory/5112-132-0x0000000000000000-mapping.dmp