Analysis Overview
SHA256
5cecd403c79f8877b85ffb3453404eab0d8a3e185df67e635d14f797c25eccf6
Threat Level: Likely malicious
The file bb4007fd7671a35e69586808ff7b07cd was found to be: Likely malicious.
Malicious Activity Summary
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Checks BIOS information in registry
Obfuscated with Agile.Net obfuscator
Themida packer
Checks whether UAC is enabled
Suspicious use of NtSetInformationThreadHideFromDebugger
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-08 12:23
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
2024-03-08 12:23
Reported
2024-03-08 12:26
Platform
win7-20240221-en
Max time kernel
151s
Max time network
137s
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\bb4007fd7671a35e69586808ff7b07cd.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\bb4007fd7671a35e69586808ff7b07cd.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe | N/A |
Obfuscated with Agile.Net obfuscator
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| 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 |
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\bb4007fd7671a35e69586808ff7b07cd.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 772 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 772 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 772 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 772 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe
"C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 568
Network
Files
memory/772-0-0x0000000000850000-0x0000000001178000-memory.dmp
memory/772-1-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-2-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-3-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-5-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-4-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-7-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-9-0x0000000075A40000-0x0000000075A87000-memory.dmp
memory/772-11-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-13-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-15-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-18-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-17-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-22-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-25-0x0000000077E00000-0x0000000077E02000-memory.dmp
memory/772-24-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-23-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-21-0x0000000075A40000-0x0000000075A87000-memory.dmp
memory/772-20-0x0000000075A40000-0x0000000075A87000-memory.dmp
memory/772-19-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-27-0x0000000000850000-0x0000000001178000-memory.dmp
memory/772-26-0x0000000074E30000-0x000000007551E000-memory.dmp
memory/772-28-0x0000000000850000-0x0000000001178000-memory.dmp
memory/772-31-0x0000000075A40000-0x0000000075A87000-memory.dmp
memory/772-32-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-34-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-33-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-35-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-36-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-37-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-38-0x0000000075EE0000-0x0000000075FF0000-memory.dmp
memory/772-39-0x0000000074E30000-0x000000007551E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-08 12:23
Reported
2024-03-08 12:26
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
151s
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\bb4007fd7671a35e69586808ff7b07cd.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\bb4007fd7671a35e69586808ff7b07cd.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe | N/A |
Obfuscated with Agile.Net obfuscator
| 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 |
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 |
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\bb4007fd7671a35e69586808ff7b07cd.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe
"C:\Users\Admin\AppData\Local\Temp\bb4007fd7671a35e69586808ff7b07cd.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1508 -ip 1508
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1508 -s 868
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 202.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.5.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 179.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
memory/1508-0-0x00000000008F0000-0x0000000001218000-memory.dmp
memory/1508-1-0x0000000075CC0000-0x0000000075DB0000-memory.dmp
memory/1508-2-0x0000000075CC0000-0x0000000075DB0000-memory.dmp
memory/1508-3-0x0000000075CC0000-0x0000000075DB0000-memory.dmp
memory/1508-4-0x0000000075CC0000-0x0000000075DB0000-memory.dmp
memory/1508-7-0x0000000075CC0000-0x0000000075DB0000-memory.dmp
memory/1508-8-0x0000000075CC0000-0x0000000075DB0000-memory.dmp
memory/1508-11-0x0000000075CC0000-0x0000000075DB0000-memory.dmp
memory/1508-12-0x0000000075CC0000-0x0000000075DB0000-memory.dmp
memory/1508-14-0x0000000077D94000-0x0000000077D96000-memory.dmp
memory/1508-15-0x00000000008F0000-0x0000000001218000-memory.dmp
memory/1508-16-0x00000000008F0000-0x0000000001218000-memory.dmp
memory/1508-18-0x00000000008F0000-0x0000000001218000-memory.dmp
memory/1508-19-0x0000000075CC0000-0x0000000075DB0000-memory.dmp