Analysis Overview
SHA256
f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56
Threat Level: Known bad
The file f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56 was found to be: Known bad.
Malicious Activity Summary
R77 family
r77 rootkit payload
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-04-11 10:51
Signatures
R77 family
r77 rootkit payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-04-11 10:51
Reported
2023-04-11 10:54
Platform
win7-20230220-en
Max time kernel
31s
Max time network
33s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1644 wrote to memory of 1384 | N/A | C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe | C:\Windows\system32\WerFault.exe |
| PID 1644 wrote to memory of 1384 | N/A | C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe | C:\Windows\system32\WerFault.exe |
| PID 1644 wrote to memory of 1384 | N/A | C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe | C:\Windows\system32\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe
"C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1644 -s 144
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2023-04-11 10:51
Reported
2023-04-11 10:54
Platform
win10v2004-20230221-en
Max time kernel
93s
Max time network
115s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe
"C:\Users\Admin\AppData\Local\Temp\f002baac9c55ec2edb4afb9f1236cf3271810998c8d80e013b3709180906de56.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 408 -p 4824 -ip 4824
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 4824 -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 | 126.151.241.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| SG | 8.241.167.254:80 | tcp | |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 20.189.173.6:443 | tcp | |
| SG | 8.241.167.254:80 | tcp | |
| US | 8.8.8.8:53 | 126.24.238.8.in-addr.arpa | udp |