Analysis Overview
SHA256
c446e5da1c2a0938697469489ff2e86118b766e5d54a8f3e3e1c79f83b327238
Threat Level: Known bad
The file c446e5da1c2a0938697469489ff2e86118b766e5d54a8f3e3e1c79f83b327238 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: behavioral2
Detonation Overview
Submitted
2022-10-20 09:35
Reported
2022-10-21 23:43
Platform
win10v2004-20220812-en
Max time kernel
91s
Max time network
136s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4948 wrote to memory of 4884 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4948 wrote to memory of 4884 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4948 wrote to memory of 4884 | 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\c446e5da1c2a0938697469489ff2e86118b766e5d54a8f3e3e1c79f83b327238.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c446e5da1c2a0938697469489ff2e86118b766e5d54a8f3e3e1c79f83b327238.dll,#1
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| IE | 13.69.239.73:443 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp |
Files
memory/4884-132-0x0000000000000000-mapping.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-20 09:35
Reported
2022-10-21 23:44
Platform
win7-20220812-en
Max time kernel
37s
Max time network
49s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 904 wrote to memory of 1736 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 904 wrote to memory of 1736 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 904 wrote to memory of 1736 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 904 wrote to memory of 1736 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 904 wrote to memory of 1736 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 904 wrote to memory of 1736 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 904 wrote to memory of 1736 | 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\c446e5da1c2a0938697469489ff2e86118b766e5d54a8f3e3e1c79f83b327238.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c446e5da1c2a0938697469489ff2e86118b766e5d54a8f3e3e1c79f83b327238.dll,#1
Network
Files
memory/1736-54-0x0000000000000000-mapping.dmp
memory/1736-55-0x0000000075281000-0x0000000075283000-memory.dmp