Analysis Overview
SHA256
1e2e8a70198577d4c6e69b5f6204272091dcb370baa649cd63d44474c273ddbd
Threat Level: Known bad
The file a6b8db8215b183a84d56e2c0e76147fa.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
2024-09-01 19:41
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-01 19:41
Reported
2024-09-01 19:43
Platform
win7-20240708-en
Max time kernel
121s
Max time network
127s
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\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.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\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2116 wrote to memory of 2692 | N/A | C:\Users\Admin\AppData\Local\Temp\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2116 wrote to memory of 2692 | N/A | C:\Users\Admin\AppData\Local\Temp\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2116 wrote to memory of 2692 | N/A | C:\Users\Admin\AppData\Local\Temp\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2116 wrote to memory of 2692 | N/A | C:\Users\Admin\AppData\Local\Temp\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.exe
"C:\Users\Admin\AppData\Local\Temp\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 156
Network
Files
memory/2116-0-0x000000000191E000-0x00000000019B1000-memory.dmp
memory/2116-1-0x00000000011D0000-0x00000000019B1000-memory.dmp
memory/2116-2-0x000000000191E000-0x00000000019B1000-memory.dmp
memory/2116-3-0x00000000011D0000-0x00000000019B1000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-01 19:41
Reported
2024-09-01 19:43
Platform
win10v2004-20240802-en
Max time kernel
94s
Max time network
100s
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\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.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\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.exe
"C:\Users\Admin\AppData\Local\Temp\a225275b37dc396bd2619a87ff2b16ebb2d82ca201d8fa2f446696fcf453403e.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2368 -ip 2368
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2368 -s 428
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
Files
memory/2368-0-0x000000000099E000-0x0000000000A31000-memory.dmp
memory/2368-1-0x0000000000250000-0x0000000000A31000-memory.dmp
memory/2368-2-0x000000000099E000-0x0000000000A31000-memory.dmp
memory/2368-3-0x0000000000250000-0x0000000000A31000-memory.dmp