Analysis Overview
SHA256
b7f599d78c0a3943f299c67088fcb8821833a0fa62bf3f2ae760c85ebb326006
Threat Level: Likely malicious
The file gtr.exe was found to be: Likely malicious.
Malicious Activity Summary
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Modifies boot configuration data using bcdedit
Themida packer
Checks BIOS information in registry
Checks whether UAC is enabled
Suspicious use of NtSetInformationThreadHideFromDebugger
Unsigned PE
Suspicious use of WriteProcessMemory
Modifies data under HKEY_USERS
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-15 02:31
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
2024-06-15 02:31
Reported
2024-06-15 02:31
Platform
win7-20240221-en
Max time kernel
15s
Max time network
17s
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\gtr.exe | N/A |
Modifies boot configuration data using bcdedit
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\bcdedit.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\gtr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\gtr.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 |
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\gtr.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\gtr.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | C:\Windows\system32\shutdown.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\system32\shutdown.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\gtr.exe
"C:\Users\Admin\AppData\Local\Temp\gtr.exe"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c bcdedit /set hypervisorlaunchtype off >nul 2>&1
C:\Windows\system32\bcdedit.exe
bcdedit /set hypervisorlaunchtype off
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c shutdown /r /f /t 0 >nul 2>&1
C:\Windows\system32\shutdown.exe
shutdown /r /f /t 0
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
Network
Files
memory/2940-1-0x0000000077470000-0x0000000077472000-memory.dmp
memory/2940-0-0x000000013FFA0000-0x0000000140D6A000-memory.dmp
memory/2940-2-0x000000013FFA0000-0x0000000140D6A000-memory.dmp
memory/2940-4-0x000000013FFA0000-0x0000000140D6A000-memory.dmp
memory/2940-3-0x000000013FFA0000-0x0000000140D6A000-memory.dmp
memory/2940-6-0x000000013FFA0000-0x0000000140D6A000-memory.dmp
memory/2940-5-0x000000013FFA0000-0x0000000140D6A000-memory.dmp
memory/2940-7-0x000000013FFA0000-0x0000000140D6A000-memory.dmp
memory/2940-9-0x000000013FFA0000-0x0000000140D6A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-15 02:31
Reported
2024-06-15 02:32
Platform
win10v2004-20240508-en
Max time kernel
15s
Max time network
17s
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\gtr.exe | N/A |
Modifies boot configuration data using bcdedit
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\bcdedit.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\gtr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\gtr.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 |
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\gtr.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\gtr.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "237" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" | C:\Windows\system32\LogonUI.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | C:\Windows\system32\shutdown.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\system32\shutdown.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\LogonUI.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\gtr.exe
"C:\Users\Admin\AppData\Local\Temp\gtr.exe"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c bcdedit /set hypervisorlaunchtype off >nul 2>&1
C:\Windows\system32\bcdedit.exe
bcdedit /set hypervisorlaunchtype off
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c shutdown /r /f /t 0 >nul 2>&1
C:\Windows\system32\shutdown.exe
shutdown /r /f /t 0
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39cf855 /state1:0x41c64e6d
Network
Files
memory/1696-0-0x00007FF60BA20000-0x00007FF60C7EA000-memory.dmp
memory/1696-1-0x00007FFE41AD0000-0x00007FFE41AD2000-memory.dmp
memory/1696-4-0x00007FF60BA20000-0x00007FF60C7EA000-memory.dmp
memory/1696-2-0x00007FF60BA20000-0x00007FF60C7EA000-memory.dmp
memory/1696-3-0x00007FF60BA20000-0x00007FF60C7EA000-memory.dmp
memory/1696-5-0x00007FF60BA20000-0x00007FF60C7EA000-memory.dmp
memory/1696-6-0x00007FF60BA20000-0x00007FF60C7EA000-memory.dmp
memory/1696-7-0x00007FF60BA20000-0x00007FF60C7EA000-memory.dmp
memory/1696-9-0x00007FF60BA20000-0x00007FF60C7EA000-memory.dmp