Analysis Overview
SHA256
467d7ac0d5e883c09d328274b5a76fc3d37568a5f41172cad51fa73af3abfcf4
Threat Level: Known bad
The file 2024-05-22_d248ec99923cd5cff34de14796f8201b_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 13:04
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 13:04
Reported
2024-05-22 13:06
Platform
win7-20240508-en
Max time kernel
121s
Max time network
123s
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_d248ec99923cd5cff34de14796f8201b_stop.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2172 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_d248ec99923cd5cff34de14796f8201b_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2172 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_d248ec99923cd5cff34de14796f8201b_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2172 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_d248ec99923cd5cff34de14796f8201b_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2172 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_d248ec99923cd5cff34de14796f8201b_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_d248ec99923cd5cff34de14796f8201b_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_d248ec99923cd5cff34de14796f8201b_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2172 -s 196
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 13:04
Reported
2024-05-22 13:07
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
152s
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_d248ec99923cd5cff34de14796f8201b_stop.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_d248ec99923cd5cff34de14796f8201b_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_d248ec99923cd5cff34de14796f8201b_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1616 -ip 1616
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1616 -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 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.24.18.2.in-addr.arpa | udp |
| NL | 23.62.61.90:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.121.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.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 |
| US | 8.8.8.8:53 | 253.15.104.51.in-addr.arpa | udp |