Analysis Overview
SHA256
4ab48c37aacd488688e0f17e6ed6be740525a093cb5b0bb290b0ad0f33a8476f
Threat Level: Known bad
The file 4ab48c37aacd488688e0f17e6ed6be740525a093cb5b0bb290b0ad0f33a8476f was found to be: Known bad.
Malicious Activity Summary
Egregor family
Detected Egregor ransomware
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-03-09 14:25
Signatures
Detected Egregor ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Egregor family
Analysis: behavioral1
Detonation Overview
Submitted
2022-03-09 14:25
Reported
2022-03-09 14:28
Platform
win7-20220223-en
Max time kernel
4294182s
Max time network
124s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1924 wrote to memory of 1868 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1924 wrote to memory of 1868 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1924 wrote to memory of 1868 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1924 wrote to memory of 1868 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1924 wrote to memory of 1868 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1924 wrote to memory of 1868 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1924 wrote to memory of 1868 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4ab48c37aacd488688e0f17e6ed6be740525a093cb5b0bb290b0ad0f33a8476f.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4ab48c37aacd488688e0f17e6ed6be740525a093cb5b0bb290b0ad0f33a8476f.dll,#1
Network
Files
memory/1868-54-0x00000000759B1000-0x00000000759B3000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-03-09 14:25
Reported
2022-03-09 14:28
Platform
win10v2004-en-20220113
Max time kernel
143s
Max time network
147s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4364 wrote to memory of 3876 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4364 wrote to memory of 3876 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4364 wrote to memory of 3876 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4ab48c37aacd488688e0f17e6ed6be740525a093cb5b0bb290b0ad0f33a8476f.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4ab48c37aacd488688e0f17e6ed6be740525a093cb5b0bb290b0ad0f33a8476f.dll,#1
Network
| Country | Destination | Domain | Proto |
| NL | 67.26.111.254:80 | tcp | |
| NL | 67.26.111.254:80 | tcp | |
| NL | 67.26.111.254:80 | tcp | |
| US | 8.8.8.8:53 | 106.89.54.20.in-addr.arpa | udp |