Analysis Overview
SHA256
5cd1a4b761863addef4b68ab4e7df6036b6dea41a278013fadedf91e19ddbb56
Threat Level: Likely malicious
The file BearFlix.exe was found to be: Likely malicious.
Malicious Activity Summary
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Obfuscated with Agile.Net obfuscator
Checks BIOS information in registry
Loads dropped DLL
Themida packer
Checks whether UAC is enabled
Suspicious use of NtSetInformationThreadHideFromDebugger
Program crash
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-04-14 12:54
Signatures
Obfuscated with Agile.Net obfuscator
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-04-14 12:54
Reported
2023-04-14 12:54
Platform
win10v2004-20230221-en
Max time kernel
22s
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\BearFlix.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\BearFlix.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\BearFlix.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\BearFlix.exe | N/A |
Obfuscated with Agile.Net obfuscator
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | 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 |
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\BearFlix.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\BearFlix.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\BearFlix.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\BearFlix.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\BearFlix.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\BearFlix.exe
"C:\Users\Admin\AppData\Local\Temp\BearFlix.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2604 -ip 2604
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 1084
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 2604 -ip 2604
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 1044
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2604 -ip 2604
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 1052
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 93.184.220.29:80 | tcp | |
| US | 8.8.8.8:53 | assets.msn.com | udp |
| GB | 95.101.143.242:443 | assets.msn.com | tcp |
| US | 8.8.8.8:53 | 242.143.101.95.in-addr.arpa | udp |
Files
memory/2604-133-0x0000000000F50000-0x000000000164E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\3552fb05-326e-47b6-881a-b7e27c7fb1c6\AgileDotNetRT.dll
| MD5 | 105e678e6ee84e0fa7fbe34df1f9639c |
| SHA1 | 17e4d775f4405e3a81a793b5bf775e9c95da5af9 |
| SHA256 | 4ef4551d44fde6e46c470314b0b89f6418a54eee3f1ad9eb7456b2a20e3065a2 |
| SHA512 | 3a15a2f188a4f572923d1999a77ef6d14b243d1c0e3a4442b5a6825756b93b40e2c6197d106df62ae3b427c62ff6b21fc2fe8181a3b6709e9991f1ddd36e5689 |
C:\Users\Admin\AppData\Local\Temp\3552fb05-326e-47b6-881a-b7e27c7fb1c6\AgileDotNetRT.dll
| MD5 | 105e678e6ee84e0fa7fbe34df1f9639c |
| SHA1 | 17e4d775f4405e3a81a793b5bf775e9c95da5af9 |
| SHA256 | 4ef4551d44fde6e46c470314b0b89f6418a54eee3f1ad9eb7456b2a20e3065a2 |
| SHA512 | 3a15a2f188a4f572923d1999a77ef6d14b243d1c0e3a4442b5a6825756b93b40e2c6197d106df62ae3b427c62ff6b21fc2fe8181a3b6709e9991f1ddd36e5689 |
memory/2604-141-0x0000000071C00000-0x0000000072219000-memory.dmp
memory/2604-142-0x0000000005F60000-0x0000000005F70000-memory.dmp
memory/2604-143-0x0000000071C00000-0x0000000072219000-memory.dmp
memory/2604-144-0x0000000071C00000-0x0000000072219000-memory.dmp
memory/2604-145-0x0000000073A70000-0x0000000073AF9000-memory.dmp
memory/2604-146-0x0000000071C00000-0x0000000072219000-memory.dmp