Analysis Overview
SHA256
fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb
Threat Level: Known bad
The file fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb was found to be: Known bad.
Malicious Activity Summary
R77 family
r77 rootkit payload
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-07-24 09:29
Signatures
R77 family
r77 rootkit payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-07-24 09:29
Reported
2023-07-24 09:32
Platform
win7-20230712-en
Max time kernel
121s
Max time network
125s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2240 wrote to memory of 2028 | N/A | C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe | C:\Windows\system32\WerFault.exe |
| PID 2240 wrote to memory of 2028 | N/A | C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe | C:\Windows\system32\WerFault.exe |
| PID 2240 wrote to memory of 2028 | N/A | C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe | C:\Windows\system32\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe
"C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2240 -s 144
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2023-07-24 09:29
Reported
2023-07-24 09:32
Platform
win10v2004-20230703-en
Max time kernel
143s
Max time network
149s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe
"C:\Users\Admin\AppData\Local\Temp\fc808ff7b3501970102a2126e5bf50ea7a23c64da9e175d76fc52e99a57239bb.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 420 -p 3780 -ip 3780
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 3780 -s 400
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 160.252.72.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 126.23.238.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 45.8.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.16.208.104.in-addr.arpa | udp |