Analysis Overview
SHA256
91e903b9fad76266ecdba9dffb7041127c7eb8983b56eae664bcebdbdcdaf852
Threat Level: Shows suspicious behavior
The file 91e903b9fad76266ecdba9dffb7041127c7eb8983b56eae664bcebdbdcdaf852 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Writes to the Master Boot Record (MBR)
Program crash
Unsigned PE
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-09 01:42
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-09 01:42
Reported
2024-05-09 01:45
Platform
win10v2004-20240426-en
Max time kernel
145s
Max time network
99s
Command Line
Signatures
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PHYSICALDRIVE0 | C:\Users\Admin\AppData\Local\Temp\91e903b9fad76266ecdba9dffb7041127c7eb8983b56eae664bcebdbdcdaf852.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\91e903b9fad76266ecdba9dffb7041127c7eb8983b56eae664bcebdbdcdaf852.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\91e903b9fad76266ecdba9dffb7041127c7eb8983b56eae664bcebdbdcdaf852.exe
"C:\Users\Admin\AppData\Local\Temp\91e903b9fad76266ecdba9dffb7041127c7eb8983b56eae664bcebdbdcdaf852.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4252 -ip 4252
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4252 -s 708
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 | tse1.mm.bing.net | udp |
| 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 |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| BE | 2.17.107.105:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 105.107.17.2.in-addr.arpa | udp |
| BE | 2.17.107.105:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.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 | 205.47.74.20.in-addr.arpa | udp |
Files
memory/4252-0-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/4252-2-0x0000000000400000-0x000000000046F000-memory.dmp
memory/4252-1-0x0000000002270000-0x00000000022F0000-memory.dmp
memory/4252-3-0x0000000000400000-0x00000000004EE000-memory.dmp
memory/4252-4-0x0000000000400000-0x00000000004EE000-memory.dmp
memory/4252-7-0x0000000000400000-0x000000000046F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-09 01:42
Reported
2024-05-09 01:45
Platform
win11-20240508-en
Max time kernel
146s
Max time network
154s
Command Line
Signatures
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PHYSICALDRIVE0 | C:\Users\Admin\AppData\Local\Temp\91e903b9fad76266ecdba9dffb7041127c7eb8983b56eae664bcebdbdcdaf852.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\91e903b9fad76266ecdba9dffb7041127c7eb8983b56eae664bcebdbdcdaf852.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\91e903b9fad76266ecdba9dffb7041127c7eb8983b56eae664bcebdbdcdaf852.exe
"C:\Users\Admin\AppData\Local\Temp\91e903b9fad76266ecdba9dffb7041127c7eb8983b56eae664bcebdbdcdaf852.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2364 -ip 2364
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2364 -s 724
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
memory/2364-0-0x0000000002220000-0x0000000002221000-memory.dmp
memory/2364-1-0x00000000028B0000-0x0000000002930000-memory.dmp
memory/2364-3-0x0000000000400000-0x00000000004EE000-memory.dmp
memory/2364-2-0x0000000000400000-0x000000000046F000-memory.dmp
memory/2364-4-0x0000000000400000-0x00000000004EE000-memory.dmp
memory/2364-7-0x0000000000400000-0x000000000046F000-memory.dmp