Analysis Overview
SHA256
8af5966054f9fd334c5cf9cb6963110f48f7e12ba3fdf9c241c8fea25b4c6404
Threat Level: Known bad
The file 8af5966054f9fd334c5cf9cb6963110f48f7e12ba3fdf9c241c8fea25b4c6404 was found to be: Known bad.
Malicious Activity Summary
Yunsip
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-10-21 19:33
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-21 19:33
Reported
2022-10-22 23:08
Platform
win7-20220812-en
Max time kernel
38s
Max time network
46s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1104 wrote to memory of 1620 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1104 wrote to memory of 1620 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1104 wrote to memory of 1620 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1104 wrote to memory of 1620 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1104 wrote to memory of 1620 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1104 wrote to memory of 1620 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1104 wrote to memory of 1620 | 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\8af5966054f9fd334c5cf9cb6963110f48f7e12ba3fdf9c241c8fea25b4c6404.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8af5966054f9fd334c5cf9cb6963110f48f7e12ba3fdf9c241c8fea25b4c6404.dll,#1
Network
Files
memory/1620-54-0x0000000000000000-mapping.dmp
memory/1620-55-0x0000000075F51000-0x0000000075F53000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-21 19:33
Reported
2022-10-22 23:07
Platform
win10v2004-20220812-en
Max time kernel
157s
Max time network
190s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4208 wrote to memory of 2724 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4208 wrote to memory of 2724 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4208 wrote to memory of 2724 | 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\8af5966054f9fd334c5cf9cb6963110f48f7e12ba3fdf9c241c8fea25b4c6404.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8af5966054f9fd334c5cf9cb6963110f48f7e12ba3fdf9c241c8fea25b4c6404.dll,#1
Network
| Country | Destination | Domain | Proto |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 20.189.173.13:443 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| US | 8.8.8.8:53 | 151.122.125.40.in-addr.arpa | udp |
Files
memory/2724-132-0x0000000000000000-mapping.dmp