Analysis Overview
SHA256
4684cd575d4eb366c0f2854e85cf15d6ba9554e092be06b7ce588b7b900c09f8
Threat Level: Known bad
The file Backdoor.Win32.Berbew.pz-4684cd575d4eb366c0f2854e85cf15d6ba9554e092be06b7ce588b7b900c09f8N was found to be: Known bad.
Malicious Activity Summary
Berbew
Drops file in System32 directory
Unsigned PE
Program crash
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-16 14:30
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-16 14:30
Reported
2024-09-16 14:32
Platform
win7-20240903-en
Max time kernel
91s
Max time network
19s
Command Line
Signatures
Berbew
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\ÿs.e¢e | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ÿs.e¢e | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3028 wrote to memory of 2660 | N/A | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 3028 wrote to memory of 2660 | N/A | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 3028 wrote to memory of 2660 | N/A | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 3028 wrote to memory of 2660 | N/A | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe
"C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 144
Network
Files
memory/3028-0-0x0000000000400000-0x0000000000441000-memory.dmp
memory/3028-3-0x0000000000400000-0x0000000000441000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-16 14:30
Reported
2024-09-16 14:32
Platform
win10v2004-20240802-en
Max time kernel
94s
Max time network
95s
Command Line
Signatures
Berbew
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\ÿs.e¢e | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ÿs.e¢e | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe
"C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Berbew.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4240 -ip 4240
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4240 -s 432
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 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 233.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
memory/4240-0-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4240-1-0x0000000000431000-0x0000000000432000-memory.dmp
memory/4240-4-0x0000000000400000-0x0000000000441000-memory.dmp