Analysis Overview
SHA256
81c5897881bf8349d302c4f4b8798d16a0e12f80949b7585fe9f201360415660
Threat Level: Known bad
The file d88dc6b1c9d9d0ce96c24003b2e22f3b.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
2024-08-31 06:49
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-31 06:49
Reported
2024-08-31 06:52
Platform
win7-20240705-en
Max time kernel
16s
Max time network
17s
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\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.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\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1476 wrote to memory of 2104 | N/A | C:\Users\Admin\AppData\Local\Temp\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1476 wrote to memory of 2104 | N/A | C:\Users\Admin\AppData\Local\Temp\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1476 wrote to memory of 2104 | N/A | C:\Users\Admin\AppData\Local\Temp\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1476 wrote to memory of 2104 | N/A | C:\Users\Admin\AppData\Local\Temp\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.exe
"C:\Users\Admin\AppData\Local\Temp\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1476 -s 160
Network
Files
memory/1476-0-0x0000000001150000-0x00000000011E4000-memory.dmp
memory/1476-1-0x00000000010E0000-0x00000000011E4000-memory.dmp
memory/1476-2-0x0000000001150000-0x00000000011E4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-31 06:49
Reported
2024-08-31 06:52
Platform
win10v2004-20240802-en
Max time kernel
134s
Max time network
139s
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\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.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\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.exe
"C:\Users\Admin\AppData\Local\Temp\5e5b6780002d047e519ecc6b58048e9588f9762d67db468c720cd61c605ecb90.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1608 -ip 1608
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1608 -s 480
Network
| Country | Destination | Domain | Proto |
| 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 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
Files
memory/1608-0-0x0000000000D70000-0x0000000000E04000-memory.dmp
memory/1608-1-0x0000000000D00000-0x0000000000E04000-memory.dmp
memory/1608-2-0x0000000000D70000-0x0000000000E04000-memory.dmp
memory/1608-3-0x0000000000D00000-0x0000000000E04000-memory.dmp