Analysis Overview
SHA256
ba73bf118d737e6b4a0938d80f436bb188bcd38880ea8401b2131df5c93b5e84
Threat Level: Known bad
The file 2024-05-22_b3fba71bcb0e8f3e1293fa00bfedc780_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 08:45
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 08:45
Reported
2024-05-22 08:47
Platform
win7-20240221-en
Max time kernel
122s
Max time network
124s
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_b3fba71bcb0e8f3e1293fa00bfedc780_stop.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1948 wrote to memory of 1732 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3fba71bcb0e8f3e1293fa00bfedc780_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1948 wrote to memory of 1732 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3fba71bcb0e8f3e1293fa00bfedc780_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1948 wrote to memory of 1732 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3fba71bcb0e8f3e1293fa00bfedc780_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1948 wrote to memory of 1732 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3fba71bcb0e8f3e1293fa00bfedc780_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3fba71bcb0e8f3e1293fa00bfedc780_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3fba71bcb0e8f3e1293fa00bfedc780_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 192
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 08:45
Reported
2024-05-22 08:47
Platform
win10v2004-20240426-en
Max time kernel
148s
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_b3fba71bcb0e8f3e1293fa00bfedc780_stop.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3fba71bcb0e8f3e1293fa00bfedc780_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_b3fba71bcb0e8f3e1293fa00bfedc780_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1660 -ip 1660
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1660 -s 568
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.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 | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.99:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 147.211.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.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 | 224.162.46.104.in-addr.arpa | udp |