Analysis Overview
SHA256
ea3042ac391e0d5cc87c10d24c17d583239ea2827d8b16b2d931bfd1aa2245ce
Threat Level: Known bad
The file ea3042ac391e0d5cc87c10d24c17d583239ea2827d8b16b2d931bfd1aa2245ce 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 00:55
Platform
win7-20220812-en
Max time kernel
37s
Max time network
48s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1852 wrote to memory of 980 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1852 wrote to memory of 980 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1852 wrote to memory of 980 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1852 wrote to memory of 980 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1852 wrote to memory of 980 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1852 wrote to memory of 980 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1852 wrote to memory of 980 | 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\ea3042ac391e0d5cc87c10d24c17d583239ea2827d8b16b2d931bfd1aa2245ce.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ea3042ac391e0d5cc87c10d24c17d583239ea2827d8b16b2d931bfd1aa2245ce.dll,#1
Network
| Country | Destination | Domain | Proto |
| IE | 212.82.100.137:80 | tcp | |
| NL | 142.251.39.100:80 | tcp | |
| US | 209.202.254.10:80 | tcp | |
| IE | 212.82.100.137:80 | tcp |
Files
memory/980-54-0x0000000000000000-mapping.dmp
memory/980-55-0x0000000075C61000-0x0000000075C63000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-20 21:20
Reported
2022-10-21 00:55
Platform
win10v2004-20220901-en
Max time kernel
91s
Max time network
153s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 5016 wrote to memory of 3956 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 5016 wrote to memory of 3956 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 5016 wrote to memory of 3956 | 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\ea3042ac391e0d5cc87c10d24c17d583239ea2827d8b16b2d931bfd1aa2245ce.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ea3042ac391e0d5cc87c10d24c17d583239ea2827d8b16b2d931bfd1aa2245ce.dll,#1
Network
| Country | Destination | Domain | Proto |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| NL | 142.251.39.100:80 | tcp | |
| NL | 142.251.39.100:80 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| US | 52.152.108.96:443 | tcp | |
| US | 13.89.179.10:443 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| US | 8.8.8.8:53 | 151.122.125.40.in-addr.arpa | udp |
| IE | 212.82.100.137:80 | tcp | |
| US | 8.8.8.8:53 | 176.122.125.40.in-addr.arpa | udp |
Files
memory/3956-132-0x0000000000000000-mapping.dmp