Analysis Overview
SHA256
b82752e798eec15d7e5ff9bbef1e9eabb2ee862ea904b327f4322fa55a18cc3f
Threat Level: Known bad
The file 8f42a57b7547554fb685f15e4a724582 was found to be: Known bad.
Malicious Activity Summary
Plugx family
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix
Analysis: static1
Detonation Overview
Reported
2024-02-04 13:23
Signatures
Plugx family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-04 13:23
Reported
2024-02-04 13:26
Platform
win7-20231129-en
Max time kernel
120s
Max time network
121s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8f42a57b7547554fb685f15e4a724582.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8f42a57b7547554fb685f15e4a724582.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 220
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-04 13:23
Reported
2024-02-04 13:26
Platform
win10v2004-20231215-en
Max time kernel
137s
Max time network
157s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3412 wrote to memory of 2352 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3412 wrote to memory of 2352 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3412 wrote to memory of 2352 | 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\8f42a57b7547554fb685f15e4a724582.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8f42a57b7547554fb685f15e4a724582.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2352 -ip 2352
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 600
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 114.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.73.42.20.in-addr.arpa | udp |