Analysis Overview
SHA256
19bddef132af20da74c89fb263b1ae89f9762eba06382e69cccdfc9048e45917
Threat Level: Likely malicious
The file nyxia external.exe was found to be: Likely malicious.
Malicious Activity Summary
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Checks BIOS information in registry
Themida packer
Checks whether UAC is enabled
Suspicious use of NtSetInformationThreadHideFromDebugger
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-09 12:33
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
2024-06-09 12:33
Reported
2024-06-09 12:38
Platform
win7-20240508-en
Max time kernel
140s
Max time network
122s
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\nyxia external.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\nyxia external.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\nyxia external.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 |
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\nyxia external.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\nyxia external.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\nyxia external.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2976 wrote to memory of 1920 | N/A | C:\Users\Admin\AppData\Local\Temp\nyxia external.exe | C:\Windows\system32\WerFault.exe |
| PID 2976 wrote to memory of 1920 | N/A | C:\Users\Admin\AppData\Local\Temp\nyxia external.exe | C:\Windows\system32\WerFault.exe |
| PID 2976 wrote to memory of 1920 | N/A | C:\Users\Admin\AppData\Local\Temp\nyxia external.exe | C:\Windows\system32\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\nyxia external.exe
"C:\Users\Admin\AppData\Local\Temp\nyxia external.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2976 -s 196
Network
Files
memory/2976-0-0x000000013F990000-0x0000000140291000-memory.dmp
memory/2976-1-0x0000000077980000-0x0000000077982000-memory.dmp
memory/2976-2-0x000000013F990000-0x0000000140291000-memory.dmp
memory/2976-3-0x000000013F990000-0x0000000140291000-memory.dmp
memory/2976-4-0x000000013F990000-0x0000000140291000-memory.dmp
memory/2976-5-0x000000013F990000-0x0000000140291000-memory.dmp
memory/2976-6-0x000000013F990000-0x0000000140291000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-09 12:33
Reported
2024-06-09 12:38
Platform
win10v2004-20240426-en
Max time kernel
94s
Max time network
129s
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\nyxia external.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\nyxia external.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\nyxia external.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 |
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\nyxia external.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\nyxia external.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\nyxia external.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\nyxia external.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\nyxia external.exe
"C:\Users\Admin\AppData\Local\Temp\nyxia external.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
Files
memory/2728-0-0x00007FF6214D0000-0x00007FF621DD1000-memory.dmp
memory/2728-1-0x00007FF86DAD0000-0x00007FF86DAD2000-memory.dmp
memory/2728-2-0x00007FF6214D0000-0x00007FF621DD1000-memory.dmp
memory/2728-3-0x00007FF6214D0000-0x00007FF621DD1000-memory.dmp
memory/2728-4-0x00007FF6214D0000-0x00007FF621DD1000-memory.dmp
memory/2728-5-0x00007FF6214D0000-0x00007FF621DD1000-memory.dmp
memory/2728-6-0x00007FF6214D0000-0x00007FF621DD1000-memory.dmp