Analysis Overview
SHA256
4751f0015131775aa8bade11885bb027997dc7f2a2a266cc87a39e72555ad3ec
Threat Level: Known bad
The file 08658799.exe was found to be: Known bad.
Malicious Activity Summary
r77 rootkit payload
R77 family
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-06-16 16:45
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
2023-06-16 16:45
Reported
2023-06-16 16:48
Platform
win7-20230220-en
Max time kernel
27s
Max time network
30s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\08658799.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1212 wrote to memory of 1324 | N/A | C:\Users\Admin\AppData\Local\Temp\08658799.exe | C:\Windows\system32\WerFault.exe |
| PID 1212 wrote to memory of 1324 | N/A | C:\Users\Admin\AppData\Local\Temp\08658799.exe | C:\Windows\system32\WerFault.exe |
| PID 1212 wrote to memory of 1324 | N/A | C:\Users\Admin\AppData\Local\Temp\08658799.exe | C:\Windows\system32\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\08658799.exe
"C:\Users\Admin\AppData\Local\Temp\08658799.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1212 -s 144
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2023-06-16 16:45
Reported
2023-06-16 16:48
Platform
win10v2004-20230220-en
Max time kernel
91s
Max time network
126s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\08658799.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\08658799.exe
"C:\Users\Admin\AppData\Local\Temp\08658799.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 364 -p 1976 -ip 1976
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1976 -s 392
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.109.26.67.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 38.146.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 8.8.8.8:53 | 123.108.74.40.in-addr.arpa | udp |
| US | 40.125.122.151:443 | tcp | |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 20.189.173.15:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 44.8.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.36.159.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 126.210.247.8.in-addr.arpa | udp |