Analysis Overview
SHA256
ecf263506efdc83d3911e931d59dce6b9e9d6fe0c05695c040c57f724ef79efc
Threat Level: Known bad
The file ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe was found to be: Known bad.
Malicious Activity Summary
SystemBC
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Identifies Wine through registry keys
Checks BIOS information in registry
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops file in Windows directory
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-09 05:42
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-09 05:42
Reported
2022-11-09 05:45
Platform
win7-20220812-en
Max time kernel
79s
Max time network
114s
Command Line
Signatures
SystemBC
Identifies VirtualBox via ACPI registry values (likely anti-VM)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Identifies Wine through registry keys
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Wine | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Tasks\wow64.job | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| File opened for modification | C:\Windows\Tasks\wow64.job | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 280 wrote to memory of 1532 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe |
| PID 280 wrote to memory of 1532 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe |
| PID 280 wrote to memory of 1532 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe |
| PID 280 wrote to memory of 1532 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe
"C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {E8CC419B-80D0-4D2C-BAF1-BEBF59834F7F} S-1-5-18:NT AUTHORITY\System:Service:
C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe
C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe start
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | n20b28tu.info | udp |
| LT | 213.252.247.237:4248 | n20b28tu.info | tcp |
Files
memory/1228-54-0x0000000000400000-0x0000000000894000-memory.dmp
memory/1228-55-0x0000000075561000-0x0000000075563000-memory.dmp
memory/1228-56-0x0000000077090000-0x0000000077210000-memory.dmp
memory/1228-57-0x0000000000400000-0x0000000000894000-memory.dmp
memory/1532-58-0x0000000000000000-mapping.dmp
memory/1532-59-0x0000000000400000-0x0000000000894000-memory.dmp
memory/1228-61-0x0000000077090000-0x0000000077210000-memory.dmp
memory/1532-62-0x0000000000400000-0x0000000000894000-memory.dmp
memory/1228-63-0x0000000077090000-0x0000000077210000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-11-09 05:42
Reported
2022-11-09 05:45
Platform
win10v2004-20220812-en
Max time kernel
100s
Max time network
159s
Command Line
Signatures
SystemBC
Identifies VirtualBox via ACPI registry values (likely anti-VM)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Identifies Wine through registry keys
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Wine | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Tasks\wow64.job | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| File created | C:\Windows\Tasks\wow64.job | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe
"C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe"
C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe
C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe start
Network
| Country | Destination | Domain | Proto |
| NL | 104.80.225.205:443 | tcp | |
| US | 52.182.143.211:443 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 8.8.8.8:53 | n20b28tu.info | udp |
| LT | 213.252.247.237:4248 | n20b28tu.info | tcp |
Files
memory/4420-132-0x0000000000400000-0x0000000000894000-memory.dmp
memory/4420-133-0x0000000000400000-0x0000000000894000-memory.dmp
memory/4420-134-0x0000000077160000-0x0000000077303000-memory.dmp
memory/4420-135-0x0000000000400000-0x0000000000894000-memory.dmp
memory/4420-136-0x0000000077160000-0x0000000077303000-memory.dmp
memory/1836-137-0x0000000000400000-0x0000000000894000-memory.dmp
memory/1836-138-0x0000000077160000-0x0000000077303000-memory.dmp
memory/1836-139-0x0000000000400000-0x0000000000894000-memory.dmp
memory/1836-140-0x0000000077160000-0x0000000077303000-memory.dmp
memory/4420-141-0x0000000077160000-0x0000000077303000-memory.dmp