Analysis
- user interaction
yes - max time kernel
116s - max time network
36s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260617-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
28/06/2026, 18:44
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
VolkUI.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
0 signatures
150 seconds
Behavioral task
behavioral2
Sample
VolkUI.exe
Resource
win11ltsc2024-20260617-en
windows11-ltsc_2024-x64
8 signatures
150 seconds
General
- Target VolkUI.exe
- Size 9.4MB
- Sample260628-xdk8aaby4s
- SHA256 68a949b65ebf768d6678cd7cb3173e9e83d4211651a7a5b7056948fb04ad6eed
- MD5 68ad7b1b7420730aecce018ad7498b86
- SHA1 ecc4d97f97801fce16ef23ae14a19cd1ad7436bc
- SHA512 6fd257550b3e2602cdf11d0c3cebfbb2c0b92f30f56cf1bc37f3139e156d69454993e2fa69e4177756dfd636f6906687b9664e5450a6bca47c89648d85681099
- SSDEEP 196608:atdCMr8j99G8lby3Dexl9N3lihcxTwZqy304gVLSsZEsnnc0IF:OCMr8j99G8lby3W9NkhyTZq04a+2c
- TLSH T1EFA61216B7A400FDD077C178CA464A13F7B1B44A2731A6DB239886693FA3AE11F3E751
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Enumerates VirtualBox registry keys 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest VolkUI.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse VolkUI.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService VolkUI.exe - Looks for VMWare services registry key. 1 TTPs 4 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\vmci VolkUI.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\vmmouse VolkUI.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\vmtools VolkUI.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VMTools VolkUI.exe - Looks for Xen service registry key. 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\xennet VolkUI.exe - Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN VolkUI.exe - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 VolkUI.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString VolkUI.exe - Opens file in notepad (likely ransom note) 1 IoCs
pid Process 368 NOTEPAD.EXE - Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 5824 VolkUI.exe 5824 VolkUI.exe 5824 VolkUI.exe 5824 VolkUI.exe 5824 VolkUI.exe 5824 VolkUI.exe 5824 VolkUI.exe 5824 VolkUI.exe 5824 VolkUI.exe 5824 VolkUI.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe Token: SeDebugPrivilege 5824 VolkUI.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\VolkUI.exe"C:\Users\Admin\AppData\Local\Temp\VolkUI.exe"1⤵
- Enumerates VirtualBox registry keys
- Looks for VMWare services registry key.
- Looks for Xen service registry key.
- Checks for VirtualBox DLLs, possible anti-VM trick
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5824
-
C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:3752
-
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\praesidium_vm_diag.log1⤵
- Opens file in notepad (likely ransom note)
PID:368
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\praesidium_vm_diag.log
- Size 1KB
- SHA256 a667ccf4b26e3c5f86aba627576db8f4e86c15e8f5145fc18f3943534439dff5
- MD5 cb1c53273a1e94c13740fc2a3a6d1868
- SHA1 5af9ed85325aa6bf2fd82cc153beb1d4b0cca15e
- SHA512 8125825dc41f21b4d743d83b38dc177fc1de9a4b4775ea481d84e785176844d605c1ef4a0a94031225890109ddeba9b28521958506f554daa04825371b10c4c1
- TLSH T15A31B82CEAC9EAF480325261DBD1576D30A26D410F10BD94B72D7AF5372E0D235C624F
- MD5 SHA1 SHA512 TLSH