Analysis Overview
SHA256
155e9ce894eef64620a880f781c09ff8c920642c6e96a35b44ab9c011abc8694
Threat Level: Known bad
The file 155e9ce894eef64620a880f781c09ff8c920642c6e96a35b44ab9c011abc8694 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 00:57
Platform
win7-20220812-en
Max time kernel
37s
Max time network
46s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1324 wrote to memory of 1964 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1324 wrote to memory of 1964 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1324 wrote to memory of 1964 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1324 wrote to memory of 1964 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1324 wrote to memory of 1964 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1324 wrote to memory of 1964 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1324 wrote to memory of 1964 | 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\155e9ce894eef64620a880f781c09ff8c920642c6e96a35b44ab9c011abc8694.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\155e9ce894eef64620a880f781c09ff8c920642c6e96a35b44ab9c011abc8694.dll,#1
Network
Files
memory/1964-54-0x0000000000000000-mapping.dmp
memory/1964-55-0x0000000075A11000-0x0000000075A13000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-20 21:20
Reported
2022-10-21 00:56
Platform
win10v2004-20220812-en
Max time kernel
132s
Max time network
158s
Command Line
Signatures
Yunsip
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1952 wrote to memory of 4744 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1952 wrote to memory of 4744 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1952 wrote to memory of 4744 | 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\155e9ce894eef64620a880f781c09ff8c920642c6e96a35b44ab9c011abc8694.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\155e9ce894eef64620a880f781c09ff8c920642c6e96a35b44ab9c011abc8694.dll,#1
Network
| Country | Destination | Domain | Proto |
| 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 |
| NL | 87.248.202.1:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| IE | 212.82.100.137:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| GB | 51.132.193.104:443 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| NL | 87.248.202.1:80 | tcp |
Files
memory/4744-132-0x0000000000000000-mapping.dmp