Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/08/2026, 18:03

General

  • Target
    echo-free (1).exe
  • Size 76.2MB
  • Sample260809-wm6pxabl4y
  • SHA256 f465c01b9c6d9e80823f6728c02c7ceecbc9724969777a41af8835a4300af8ef
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\echo-free (1).exe
    "C:\Users\Admin\AppData\Local\Temp\echo-free (1).exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:4860

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/4860-0-0x0000000180000000-0x0000000180008000-memory.dmp

        memory/4860-7-0x0000000140000000-0x0000000141000000-memory.dmp

        memory/4860-11-0x0000000049080000-0x00000000491D9000-memory.dmp

        memory/4860-13-0x0000000049080000-0x00000000491D9000-memory.dmp