Analysis Overview
SHA256
b5779af319fb770f5d6ad5b897f4448d160e68f6b05539eb05a02e27afc0db21
Threat Level: Known bad
The file 2024-05-22_a25735ebd53c137357746fdb54a9cd7c_stop was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu family
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-05-22 14:54
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 14:54
Reported
2024-05-22 14:57
Platform
win7-20240221-en
Max time kernel
117s
Max time network
117s
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_a25735ebd53c137357746fdb54a9cd7c_stop.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2272 wrote to memory of 2060 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_a25735ebd53c137357746fdb54a9cd7c_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2272 wrote to memory of 2060 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_a25735ebd53c137357746fdb54a9cd7c_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2272 wrote to memory of 2060 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_a25735ebd53c137357746fdb54a9cd7c_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2272 wrote to memory of 2060 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_a25735ebd53c137357746fdb54a9cd7c_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_a25735ebd53c137357746fdb54a9cd7c_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_a25735ebd53c137357746fdb54a9cd7c_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 192
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 14:54
Reported
2024-05-22 14:57
Platform
win10v2004-20240508-en
Max time kernel
133s
Max time network
150s
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_a25735ebd53c137357746fdb54a9cd7c_stop.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_a25735ebd53c137357746fdb54a9cd7c_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_a25735ebd53c137357746fdb54a9cd7c_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4392 -ip 4392
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4392 -s 568
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| NL | 23.62.61.106:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 106.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.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 |