Analysis Overview
SHA256
5b21fd17d73e30d2cf5c8dcdae598402f34a1b5fde2be32d231f7ed5f59c209f
Threat Level: Known bad
The file 5b21fd17d73e30d2cf5c8dcdae598402f34a1b5fde2be32d231f7ed5f59c209f was found to be: Known bad.
Malicious Activity Summary
Detects executables packed with Themida
Detects executables packed with Themida
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
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-11 22:20
Signatures
Detects executables packed with Themida
| 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 |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-11 22:20
Reported
2024-06-11 22:23
Platform
win7-20240220-en
Max time kernel
122s
Max time network
124s
Command Line
Signatures
Detects executables packed with Themida
| 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 |
Identifies VirtualBox via ACPI registry values (likely anti-VM)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ | C:\Windows\SysWOW64\rundll32.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Windows\SysWOW64\rundll32.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 |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2728 wrote to memory of 2732 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2728 wrote to memory of 2732 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2728 wrote to memory of 2732 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2728 wrote to memory of 2732 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2728 wrote to memory of 2732 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2728 wrote to memory of 2732 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2728 wrote to memory of 2732 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5b21fd17d73e30d2cf5c8dcdae598402f34a1b5fde2be32d231f7ed5f59c209f.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5b21fd17d73e30d2cf5c8dcdae598402f34a1b5fde2be32d231f7ed5f59c209f.dll,#1
Network
Files
memory/2732-0-0x00000000774C0000-0x00000000774C2000-memory.dmp
memory/2732-3-0x0000000072950000-0x00000000738B4000-memory.dmp
memory/2732-5-0x0000000072950000-0x00000000738B4000-memory.dmp
memory/2732-6-0x0000000072950000-0x00000000738B4000-memory.dmp
memory/2732-7-0x0000000072950000-0x00000000738B4000-memory.dmp
memory/2732-4-0x0000000072950000-0x00000000738B4000-memory.dmp
memory/2732-2-0x0000000072950000-0x00000000738B4000-memory.dmp
memory/2732-1-0x0000000072950000-0x00000000738B4000-memory.dmp
memory/2732-9-0x000000006ECF0000-0x000000006ED00000-memory.dmp
memory/2732-10-0x0000000076D04000-0x0000000076D05000-memory.dmp
memory/2732-8-0x0000000072950000-0x00000000738B4000-memory.dmp
memory/2732-11-0x0000000072950000-0x00000000738B4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-11 22:20
Reported
2024-06-11 22:23
Platform
win10v2004-20240611-en
Max time kernel
134s
Max time network
136s
Command Line
Signatures
Detects executables packed with Themida
| 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 |
Identifies VirtualBox via ACPI registry values (likely anti-VM)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ | C:\Windows\SysWOW64\rundll32.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Windows\SysWOW64\rundll32.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 |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3264 wrote to memory of 1528 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3264 wrote to memory of 1528 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3264 wrote to memory of 1528 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5b21fd17d73e30d2cf5c8dcdae598402f34a1b5fde2be32d231f7ed5f59c209f.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5b21fd17d73e30d2cf5c8dcdae598402f34a1b5fde2be32d231f7ed5f59c209f.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1528 -ip 1528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1528 -s 604
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1528 -ip 1528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1528 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 6.173.189.20.in-addr.arpa | udp |
Files
memory/1528-0-0x00000000779B4000-0x00000000779B6000-memory.dmp
memory/1528-2-0x00000000744B0000-0x0000000075414000-memory.dmp
memory/1528-1-0x00000000744B0000-0x0000000075414000-memory.dmp
memory/1528-4-0x00000000744B0000-0x0000000075414000-memory.dmp
memory/1528-9-0x000000006E340000-0x000000006E350000-memory.dmp
memory/1528-5-0x00000000744B0000-0x0000000075414000-memory.dmp
memory/1528-3-0x00000000744B0000-0x0000000075414000-memory.dmp
memory/1528-7-0x00000000744B0000-0x0000000075414000-memory.dmp
memory/1528-6-0x00000000744B0000-0x0000000075414000-memory.dmp
memory/1528-8-0x00000000744B0000-0x0000000075414000-memory.dmp
memory/1528-10-0x00000000744B0000-0x0000000075414000-memory.dmp