Analysis Overview
SHA256
c5939fd8fc146c4433e8bff31040c4ac880ae69b1afd174be3ca779c3481369e
Threat Level: Known bad
The file 3c1515f5f55282c116ad9ba9547c9121.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 09:34
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-31 09:34
Reported
2024-08-31 09:37
Platform
win7-20240705-en
Max time kernel
119s
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\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.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\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2644 wrote to memory of 2696 | N/A | C:\Users\Admin\AppData\Local\Temp\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2644 wrote to memory of 2696 | N/A | C:\Users\Admin\AppData\Local\Temp\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2644 wrote to memory of 2696 | N/A | C:\Users\Admin\AppData\Local\Temp\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2644 wrote to memory of 2696 | N/A | C:\Users\Admin\AppData\Local\Temp\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe
"C:\Users\Admin\AppData\Local\Temp\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2644 -s 160
Network
Files
memory/2644-0-0x0000000000130000-0x00000000001C4000-memory.dmp
memory/2644-1-0x00000000000C0000-0x00000000001C4000-memory.dmp
memory/2644-2-0x0000000000130000-0x00000000001C4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-31 09:34
Reported
2024-08-31 09:37
Platform
win10v2004-20240802-en
Max time kernel
140s
Max time network
133s
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\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.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\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe
"C:\Users\Admin\AppData\Local\Temp\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5076 -ip 5076
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 476
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4148,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=1288 /prefetch:8
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 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.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 | 137.71.105.51.in-addr.arpa | udp |
Files
memory/5076-0-0x0000000000B30000-0x0000000000BC4000-memory.dmp
memory/5076-1-0x0000000000AC0000-0x0000000000BC4000-memory.dmp
memory/5076-2-0x0000000000B30000-0x0000000000BC4000-memory.dmp
memory/5076-3-0x0000000000AC0000-0x0000000000BC4000-memory.dmp