Analysis Overview
SHA256
00ce989fe271368a6512f8ca6c37771683766960500c3562196dca00ef9b5479
Threat Level: Known bad
The file dc64fb891964a7694201dc450ccc7a4f.zip was found to be: Known bad.
Malicious Activity Summary
Expiro, m0yv
Expiro payload
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
2024-09-02 01:21
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-02 01:21
Reported
2024-09-02 01:24
Platform
win7-20240704-en
Max time kernel
122s
Max time network
124s
Command Line
Signatures
Expiro, m0yv
Expiro payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.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\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1924 wrote to memory of 2936 | N/A | C:\Users\Admin\AppData\Local\Temp\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1924 wrote to memory of 2936 | N/A | C:\Users\Admin\AppData\Local\Temp\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1924 wrote to memory of 2936 | N/A | C:\Users\Admin\AppData\Local\Temp\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1924 wrote to memory of 2936 | N/A | C:\Users\Admin\AppData\Local\Temp\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.exe
"C:\Users\Admin\AppData\Local\Temp\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 132
Network
Files
memory/1924-0-0x0000000000D4C000-0x0000000000DDF000-memory.dmp
memory/1924-1-0x0000000000CD0000-0x0000000000DDF000-memory.dmp
memory/1924-2-0x0000000000D4C000-0x0000000000DDF000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-02 01:21
Reported
2024-09-02 01:24
Platform
win10v2004-20240802-en
Max time kernel
91s
Max time network
138s
Command Line
Signatures
Expiro, m0yv
Expiro payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.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\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.exe
"C:\Users\Admin\AppData\Local\Temp\49743c2e8e3d1ff87eb95d633804f3e215a344323699085096b5e832b3ae55dc.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 64 -ip 64
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 64 -s 400
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
Files
memory/64-0-0x0000000000B4C000-0x0000000000BDF000-memory.dmp
memory/64-1-0x0000000000AD0000-0x0000000000BDF000-memory.dmp
memory/64-2-0x0000000000B4C000-0x0000000000BDF000-memory.dmp