Analysis Overview
SHA256
5044679442b15f0bf4197d73b3ca20f1cc247ab62846662cacdc68bb94ebeb51
Threat Level: Known bad
The file bc4fdfc216dbd521f810b8305e38637a.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 05:34
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-31 05:34
Reported
2024-08-31 05:36
Platform
win7-20240708-en
Max time kernel
118s
Max time network
120s
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\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.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\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1748 wrote to memory of 2232 | N/A | C:\Users\Admin\AppData\Local\Temp\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1748 wrote to memory of 2232 | N/A | C:\Users\Admin\AppData\Local\Temp\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1748 wrote to memory of 2232 | N/A | C:\Users\Admin\AppData\Local\Temp\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1748 wrote to memory of 2232 | N/A | C:\Users\Admin\AppData\Local\Temp\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.exe
"C:\Users\Admin\AppData\Local\Temp\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1748 -s 68
Network
Files
memory/1748-1-0x0000000000E10000-0x0000000000F0F000-memory.dmp
memory/1748-0-0x0000000000E7C000-0x0000000000F0F000-memory.dmp
memory/1748-2-0x0000000000E7C000-0x0000000000F0F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-31 05:34
Reported
2024-08-31 05:36
Platform
win10v2004-20240802-en
Max time kernel
143s
Max time network
137s
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\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.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\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.exe
"C:\Users\Admin\AppData\Local\Temp\19bdba4c02f3e286b2d7047e76e25aad356748edcec95e37634face159894eb2.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1768 -ip 1768
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1768 -s 252
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 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 44.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.28.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.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 | 55.36.223.20.in-addr.arpa | udp |
Files
memory/1768-0-0x000000000024C000-0x00000000002DF000-memory.dmp
memory/1768-1-0x00000000001E0000-0x00000000002DF000-memory.dmp
memory/1768-2-0x000000000024C000-0x00000000002DF000-memory.dmp
memory/1768-3-0x00000000001E0000-0x00000000002DF000-memory.dmp