Analysis Overview
SHA256
9b1b829a3fcd74fd5665f2149cf3765edac0de6830ec482711e068c21c6af79a
Threat Level: Known bad
The file f160b4aaad518b10dfc712bc54c37d11.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
2024-08-31 12:31
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-31 12:31
Reported
2024-08-31 12:33
Platform
win7-20240705-en
Max time kernel
117s
Max time network
118s
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\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.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\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1460 wrote to memory of 2704 | N/A | C:\Users\Admin\AppData\Local\Temp\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1460 wrote to memory of 2704 | N/A | C:\Users\Admin\AppData\Local\Temp\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1460 wrote to memory of 2704 | N/A | C:\Users\Admin\AppData\Local\Temp\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1460 wrote to memory of 2704 | N/A | C:\Users\Admin\AppData\Local\Temp\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.exe
"C:\Users\Admin\AppData\Local\Temp\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1460 -s 64
Network
Files
memory/1460-0-0x0000000000FAB000-0x000000000103E000-memory.dmp
memory/1460-1-0x0000000000F40000-0x000000000103E000-memory.dmp
memory/1460-2-0x0000000000FAB000-0x000000000103E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-31 12:31
Reported
2024-08-31 12:33
Platform
win10v2004-20240802-en
Max time kernel
135s
Max time network
140s
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 |
| 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\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.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\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.exe
"C:\Users\Admin\AppData\Local\Temp\a79113aac9d7c76351a1d74e3d46cdac44146323496b85bb4150ae10f108453e.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4560 -ip 4560
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4560 -s 260
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 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.139.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 52.111.227.11:443 | tcp | |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
Files
memory/4560-0-0x0000000000F6B000-0x0000000000FFE000-memory.dmp
memory/4560-1-0x0000000000F00000-0x0000000000FFE000-memory.dmp
memory/4560-3-0x0000000000F00000-0x0000000000FFE000-memory.dmp
memory/4560-2-0x0000000000F6B000-0x0000000000FFE000-memory.dmp