Analysis Overview
SHA256
0f4883add5ad4dd248834b1c9d9554f6fcfd1c88c3ad987e009b77fa77ba28d5
Threat Level: Known bad
The file 0f4883add5ad4dd248834b1c9d9554f6fcfd1c88c3ad987e009b77fa77ba28d5 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 09:35
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-20 09:35
Reported
2022-10-21 23:45
Platform
win7-20220812-en
Max time kernel
40s
Max time network
47s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 328 wrote to memory of 852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 328 wrote to memory of 852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 328 wrote to memory of 852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 328 wrote to memory of 852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 328 wrote to memory of 852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 328 wrote to memory of 852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 328 wrote to memory of 852 | 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\0f4883add5ad4dd248834b1c9d9554f6fcfd1c88c3ad987e009b77fa77ba28d5.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0f4883add5ad4dd248834b1c9d9554f6fcfd1c88c3ad987e009b77fa77ba28d5.dll,#1
Network
Files
memory/852-54-0x0000000000000000-mapping.dmp
memory/852-55-0x0000000075ED1000-0x0000000075ED3000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-20 09:35
Reported
2022-10-21 23:45
Platform
win10v2004-20220812-en
Max time kernel
166s
Max time network
173s
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\0f4883add5ad4dd248834b1c9d9554f6fcfd1c88c3ad987e009b77fa77ba28d5.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0f4883add5ad4dd248834b1c9d9554f6fcfd1c88c3ad987e009b77fa77ba28d5.dll,#1
Network
| Country | Destination | Domain | Proto |
| NL | 20.224.151.203:443 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 20.189.173.13:443 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| US | 72.21.81.240:80 | tcp | |
| US | 8.8.8.8:53 | 15.89.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | f.7.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.0.0.0.0.3.0.1.3.0.6.2.ip6.arpa | udp |
Files
memory/2724-132-0x0000000000000000-mapping.dmp