Analysis Overview
SHA256
203acd525d935c2a58ea882ee8ebf6c8b1248c5c2f01869d5ef8701c29545a9b
Threat Level: Known bad
The file 2024-05-22_b3a54c807124693a34c7d91e0bf404db_stop was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu family
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-05-22 14:56
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Djvu family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-22 14:56
Reported
2024-05-22 14:59
Platform
win7-20231129-en
Max time kernel
118s
Max time network
119s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3a54c807124693a34c7d91e0bf404db_stop.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2344 wrote to memory of 2176 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3a54c807124693a34c7d91e0bf404db_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2344 wrote to memory of 2176 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3a54c807124693a34c7d91e0bf404db_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2344 wrote to memory of 2176 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3a54c807124693a34c7d91e0bf404db_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2344 wrote to memory of 2176 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3a54c807124693a34c7d91e0bf404db_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3a54c807124693a34c7d91e0bf404db_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3a54c807124693a34c7d91e0bf404db_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2344 -s 192
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 14:56
Reported
2024-05-22 14:59
Platform
win10v2004-20240426-en
Max time kernel
129s
Max time network
127s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3a54c807124693a34c7d91e0bf404db_stop.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3a54c807124693a34c7d91e0bf404db_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3a54c807124693a34c7d91e0bf404db_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3500 -ip 3500
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 568
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 160.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |