Analysis Overview
SHA256
82bdac6e02abb36ffc886ad3f68250806b83fb50b3f9de03408e28b8f94d498a
Threat Level: Known bad
The file 82bdac6e02abb36ffc886ad3f68250806b83fb50b3f9de03408e28b8f94d498a 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 00:44
Platform
win7-20220812-en
Max time kernel
40s
Max time network
44s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2036 wrote to memory of 544 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2036 wrote to memory of 544 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2036 wrote to memory of 544 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2036 wrote to memory of 544 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2036 wrote to memory of 544 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2036 wrote to memory of 544 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2036 wrote to memory of 544 | 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\82bdac6e02abb36ffc886ad3f68250806b83fb50b3f9de03408e28b8f94d498a.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\82bdac6e02abb36ffc886ad3f68250806b83fb50b3f9de03408e28b8f94d498a.dll,#1
Network
Files
memory/544-54-0x0000000000000000-mapping.dmp
memory/544-55-0x0000000076151000-0x0000000076153000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-20 21:20
Reported
2022-10-21 00:44
Platform
win10v2004-20220812-en
Max time kernel
158s
Max time network
168s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4308 wrote to memory of 1560 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4308 wrote to memory of 1560 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4308 wrote to memory of 1560 | 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\82bdac6e02abb36ffc886ad3f68250806b83fb50b3f9de03408e28b8f94d498a.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\82bdac6e02abb36ffc886ad3f68250806b83fb50b3f9de03408e28b8f94d498a.dll,#1
Network
| Country | Destination | Domain | Proto |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| NL | 104.80.225.205:443 | tcp | |
| US | 52.182.143.208:443 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 40.125.122.151:443 | tcp | |
| US | 8.8.8.8:53 | 97.97.242.52.in-addr.arpa | udp |
Files
memory/1560-132-0x0000000000000000-mapping.dmp