Analysis Overview
SHA256
1a36e87d2cdf305417d8a174946832ae3b1f3eb0b0f33cf6780e797b1d61eca1
Threat Level: Known bad
The file 2024-05-22_2aef03604ecf32dd71b7a22d28b2319b_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 12:30
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 12:30
Reported
2024-05-22 12:44
Platform
win7-20240220-en
Max time kernel
120s
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_2aef03604ecf32dd71b7a22d28b2319b_stop.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2860 wrote to memory of 2908 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_2aef03604ecf32dd71b7a22d28b2319b_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2860 wrote to memory of 2908 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_2aef03604ecf32dd71b7a22d28b2319b_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2860 wrote to memory of 2908 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_2aef03604ecf32dd71b7a22d28b2319b_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2860 wrote to memory of 2908 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-22_2aef03604ecf32dd71b7a22d28b2319b_stop.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_2aef03604ecf32dd71b7a22d28b2319b_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_2aef03604ecf32dd71b7a22d28b2319b_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2860 -s 192
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 12:30
Reported
2024-05-22 12:44
Platform
win10v2004-20240426-en
Max time kernel
133s
Max time network
105s
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_2aef03604ecf32dd71b7a22d28b2319b_stop.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-22_2aef03604ecf32dd71b7a22d28b2319b_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_2aef03604ecf32dd71b7a22d28b2319b_stop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4844 -ip 4844
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4844 -s 568
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.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 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 160.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.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 |