Analysis Overview
SHA256
60c57f14c2e0e0df0bda16646b21dddceaee0159dafbbb8daba310d4e1b5be6c
Threat Level: Likely malicious
The file loader.exe was found to be: Likely malicious.
Malicious Activity Summary
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Themida packer
Checks BIOS information in registry
Checks whether UAC is enabled
Suspicious use of NtSetInformationThreadHideFromDebugger
Unsigned PE
Suspicious use of SetWindowsHookEx
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-14 23:33
Signatures
Themida packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-14 23:33
Reported
2024-06-14 23:34
Platform
win10-20240404-en
Max time kernel
30s
Max time network
25s
Command Line
Signatures
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\loader.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\loader.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\loader.exe | N/A |
Themida packer
| 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 |
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\loader.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\loader.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\loader.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\loader.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3748 wrote to memory of 4316 | N/A | C:\Users\Admin\AppData\Local\Temp\loader.exe | C:\Windows\system32\cmd.exe |
| PID 3748 wrote to memory of 4316 | N/A | C:\Users\Admin\AppData\Local\Temp\loader.exe | C:\Windows\system32\cmd.exe |
| PID 4316 wrote to memory of 1428 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\certutil.exe |
| PID 4316 wrote to memory of 1428 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\certutil.exe |
| PID 4316 wrote to memory of 2100 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\find.exe |
| PID 4316 wrote to memory of 2100 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\find.exe |
| PID 4316 wrote to memory of 3624 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\find.exe |
| PID 4316 wrote to memory of 3624 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\find.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\loader.exe
"C:\Users\Admin\AppData\Local\Temp\loader.exe"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\loader.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
C:\Windows\system32\certutil.exe
certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\loader.exe" MD5
C:\Windows\system32\find.exe
find /i /v "md5"
C:\Windows\system32\find.exe
find /i /v "certutil"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | keyauth.win | udp |
| US | 104.26.1.5:443 | keyauth.win | tcp |
| US | 8.8.8.8:53 | x2.c.lencr.org | udp |
| BE | 23.55.97.11:80 | x2.c.lencr.org | tcp |
| US | 8.8.8.8:53 | 5.1.26.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| N/A | 127.0.0.1:49773 | tcp | |
| N/A | 127.0.0.1:49775 | tcp | |
| US | 8.8.8.8:53 | 11.97.55.23.in-addr.arpa | udp |
| N/A | 127.0.0.1:49784 | tcp | |
| N/A | 127.0.0.1:49786 | tcp | |
| US | 104.26.1.5:443 | keyauth.win | tcp |
Files
memory/3748-1-0x00007FFFD3E28000-0x00007FFFD3E2A000-memory.dmp
memory/3748-0-0x00007FF7683E0000-0x00007FF768E7F000-memory.dmp
memory/3748-2-0x00007FF7683E0000-0x00007FF768E7F000-memory.dmp
memory/3748-3-0x00007FF7683E0000-0x00007FF768E7F000-memory.dmp
memory/3748-4-0x00007FF7683E0000-0x00007FF768E7F000-memory.dmp
memory/3748-6-0x00007FF7683E0000-0x00007FF768E7F000-memory.dmp
memory/3748-7-0x00007FF7683E0000-0x00007FF768E7F000-memory.dmp
memory/3748-8-0x00007FF7683E0000-0x00007FF768E7F000-memory.dmp
memory/3748-5-0x00007FF7683E0000-0x00007FF768E7F000-memory.dmp
memory/3748-9-0x00007FF7683E0000-0x00007FF768E7F000-memory.dmp
memory/3748-10-0x00007FF7683E0000-0x00007FF768E7F000-memory.dmp
memory/3748-11-0x00007FF7683E0000-0x00007FF768E7F000-memory.dmp