Analysis Overview
SHA256
33ec78385982a66120e57de1e04540331cd62323c35b4165a430d6ed5555f4c7
Threat Level: Known bad
The file 2024-05-22_64ad707f68641b141c0a2b309763dc80_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 13:03
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 13:03
Reported
2024-05-22 13:06
Platform
win7-20240221-en
Max time kernel
121s
Max time network
122s
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_64ad707f68641b141c0a2b309763dc80_stop.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1632 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_64ad707f68641b141c0a2b309763dc80_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1632 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_64ad707f68641b141c0a2b309763dc80_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1632 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_64ad707f68641b141c0a2b309763dc80_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1632 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_64ad707f68641b141c0a2b309763dc80_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_64ad707f68641b141c0a2b309763dc80_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_64ad707f68641b141c0a2b309763dc80_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1632 -s 192
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 13:03
Reported
2024-05-22 13:06
Platform
win10v2004-20240508-en
Max time kernel
134s
Max time network
106s
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_64ad707f68641b141c0a2b309763dc80_stop.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_64ad707f68641b141c0a2b309763dc80_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_64ad707f68641b141c0a2b309763dc80_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2800 -ip 2800
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2800 -s 568
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| 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 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 160.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.99.105.20.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 |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |