Analysis Overview
SHA256
c2c268a37d16d52f7b0fcdcbc49a86de1283b22b8c858a0f81497d70b4e1cf0d
Threat Level: Known bad
The file e1a7b4cbe8e8aabce05747a34ce3a875.zip was found to be: Known bad.
Malicious Activity Summary
Expiro, m0yv
Expiro payload
Program crash
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-01 16:08
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-01 16:08
Reported
2024-09-01 16:11
Platform
win7-20240704-en
Max time kernel
15s
Max time network
19s
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\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.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\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1656 wrote to memory of 2296 | N/A | C:\Users\Admin\AppData\Local\Temp\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1656 wrote to memory of 2296 | N/A | C:\Users\Admin\AppData\Local\Temp\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1656 wrote to memory of 2296 | N/A | C:\Users\Admin\AppData\Local\Temp\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1656 wrote to memory of 2296 | N/A | C:\Users\Admin\AppData\Local\Temp\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.exe
"C:\Users\Admin\AppData\Local\Temp\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 156
Network
Files
memory/1656-0-0x00000000018EE000-0x0000000001981000-memory.dmp
memory/1656-1-0x00000000011A0000-0x0000000001981000-memory.dmp
memory/1656-2-0x00000000018EE000-0x0000000001981000-memory.dmp
memory/1656-3-0x00000000011A0000-0x0000000001981000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-01 16:08
Reported
2024-09-01 16:11
Platform
win10v2004-20240802-en
Max time kernel
93s
Max time network
99s
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\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.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\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.exe
"C:\Users\Admin\AppData\Local\Temp\4317afbf25f7145ec2e84eee745d09c9f6e8a0973a460892fc4fa76595bfa319.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 460 -ip 460
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 460 -s 428
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 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
Files
memory/460-0-0x0000000000A4E000-0x0000000000AE1000-memory.dmp
memory/460-1-0x0000000000300000-0x0000000000AE1000-memory.dmp
memory/460-2-0x0000000000A4E000-0x0000000000AE1000-memory.dmp
memory/460-3-0x0000000000300000-0x0000000000AE1000-memory.dmp