Analysis
- user interaction
yes - max time kernel
150s - max time network
142s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
02/10/2026, 12:13
General
- Target EssentialUI_v3.48.1.exe
- Size 94.8MB
- Sample261002-pd81ca1bjd
- SHA256 ce487c0ba1251cebc464926239f9ee9244cb091f98cfd8df54664be826af5160
Malware Config
Extracted
-
vidar
-
3.6
-
e367706b0028cfecb9ca7f2b676a21e5
-
https://139.162.175.187
-
https://t.me/j88hor
-
https://steamcommunity.com/profiles/76561198633950250
-
user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/150.0.0.0 YaBrowser/26.8.0.0
Signatures
- Family: Vidar
Vidar is an infostealer based on Arkei stealer.
- Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 3 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks system information in the registry 2 TTPs 2 IoCs
System information is often read in order to detect sandboxing environments.
- 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.
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\EssentialUI_v3.48.1.exe"C:\Users\Admin\AppData\Local\Temp\EssentialUI_v3.48.1.exe"1⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks system information in the registry
- Checks for VirtualBox DLLs, possible anti-VM trick
- Reads the TCP/IP host and domain name from the registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
memory/4056-0-0x00000005B0000000-0x00000005B0298000-memory.dmp
memory/4056-1-0x00000005B0000000-0x00000005B0298000-memory.dmp
memory/4056-4-0x00000005B0000000-0x00000005B0298000-memory.dmp
memory/4056-5-0x00000005B0000000-0x00000005B0298000-memory.dmp