Analysis Overview
SHA256
3b108c29fabd5754f55889b44cd02ea8bec6cd69709bc20f193fc2254bc97a7a
Threat Level: Known bad
The file 3b108c29fabd5754f55889b44cd02ea8bec6cd69709bc20f193fc2254bc97a7a was found to be: Known bad.
Malicious Activity Summary
R77 family
r77 rootkit payload
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-04-28 12:12
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
2023-04-28 12:12
Reported
2023-04-28 12:15
Platform
win7-20230220-en
Max time kernel
27s
Max time network
31s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\3b108c29fabd5754f55889b44cd02ea8bec6cd69709bc20f193fc2254bc97a7a.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1100 wrote to memory of 924 | N/A | C:\Users\Admin\AppData\Local\Temp\3b108c29fabd5754f55889b44cd02ea8bec6cd69709bc20f193fc2254bc97a7a.exe | C:\Windows\system32\WerFault.exe |
| PID 1100 wrote to memory of 924 | N/A | C:\Users\Admin\AppData\Local\Temp\3b108c29fabd5754f55889b44cd02ea8bec6cd69709bc20f193fc2254bc97a7a.exe | C:\Windows\system32\WerFault.exe |
| PID 1100 wrote to memory of 924 | N/A | C:\Users\Admin\AppData\Local\Temp\3b108c29fabd5754f55889b44cd02ea8bec6cd69709bc20f193fc2254bc97a7a.exe | C:\Windows\system32\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\3b108c29fabd5754f55889b44cd02ea8bec6cd69709bc20f193fc2254bc97a7a.exe
"C:\Users\Admin\AppData\Local\Temp\3b108c29fabd5754f55889b44cd02ea8bec6cd69709bc20f193fc2254bc97a7a.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1100 -s 144
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2023-04-28 12:12
Reported
2023-04-28 12:15
Platform
win10v2004-20230220-en
Max time kernel
95s
Max time network
150s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\3b108c29fabd5754f55889b44cd02ea8bec6cd69709bc20f193fc2254bc97a7a.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\3b108c29fabd5754f55889b44cd02ea8bec6cd69709bc20f193fc2254bc97a7a.exe
"C:\Users\Admin\AppData\Local\Temp\3b108c29fabd5754f55889b44cd02ea8bec6cd69709bc20f193fc2254bc97a7a.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 460 -p 1408 -ip 1408
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1408 -s 392
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 52.152.110.14:443 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 52.152.110.14:443 | tcp | |
| US | 8.8.8.8:53 | 64.13.109.52.in-addr.arpa | udp |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 8.8.8.8:53 | 121.252.72.23.in-addr.arpa | udp |
| US | 52.152.110.14:443 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |