Analysis Overview
SHA256
584cfa980d017c79576ec0bdf57dcb346b64d0e10dc878d5c6e6002f1582f21a
Threat Level: Known bad
The file 5d9afa34d58d686ea27ab01f4f681d56.zip was found to be: Known bad.
Malicious Activity Summary
Expiro, m0yv
Expiro payload
System Location Discovery: System Language Discovery
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-31 01:26
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-31 01:26
Reported
2024-08-31 01:28
Platform
win10v2004-20240802-en
Max time kernel
136s
Max time network
128s
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\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.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\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.exe
"C:\Users\Admin\AppData\Local\Temp\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3112 -ip 3112
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 532
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 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| US | 52.111.229.48:443 | 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 | 10.28.171.150.in-addr.arpa | udp |
Files
memory/3112-0-0x0000000000B2B000-0x0000000000BBF000-memory.dmp
memory/3112-1-0x0000000000AB0000-0x0000000000BBF000-memory.dmp
memory/3112-2-0x0000000000B2B000-0x0000000000BBF000-memory.dmp
memory/3112-3-0x0000000000AB0000-0x0000000000BBF000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-31 01:26
Reported
2024-08-31 01:28
Platform
win7-20240708-en
Max time kernel
119s
Max time network
119s
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\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.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\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1724 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1724 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1724 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1724 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.exe
"C:\Users\Admin\AppData\Local\Temp\b173b03e0988654a331c46e31e2438115d34fc57a7550a66aee784d1e74300d3.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1724 -s 144
Network
Files
memory/1724-0-0x000000000031B000-0x00000000003AF000-memory.dmp
memory/1724-1-0x00000000002A0000-0x00000000003AF000-memory.dmp
memory/1724-2-0x000000000031B000-0x00000000003AF000-memory.dmp