Overview

overview

10

Static

static

10

UrbanVPN I...er.exe

windows10-2004-x64

10

UrbanVPN I...er.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows11-21h2_x64
  • resource
    win11-20251231-en
  • resource tags

    arch:x64arch:x86image:win11-20251231-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08/01/2026, 03:10

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General

  • Target
    UrbanVPN Installer.exe
  • Size 3.1MB
  • Sample260108-dpeebse19e
  • SHA256 e582a6b95ad02b028a3cef7c8b0989cb9add3bba91008f43d80bde34e2dd22df
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
office04quasarspywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • gizmodo.co.com:4782

  • bong88.co.com:4782

  • vn88a.co.com:4782

  • emi.co.com:4782

  • danhdeonline.co.com:4782

  • cim.co.com:4782

  • avan.co.com:4782

  • psyca.co.com:4782

  • dadumaster.co.com:4782

  • connect.form.co.com:4782

  • connect.gizmodo.co.com:4782

  • connect.bong88.co.com:4782

  • connect.vn88a.co.com:4782

  • connect.emi.co.com:4782

  • connect.danhdeonline.co.com:4782

  • connect.cim.co.com:4782

  • connect.avan.co.com:4782

  • connect.psyca.co.com:4782

  • connect.dadumaster.co.com:4782

Mutex

  • 4e1652fb-558c-4222-bb04-8f5789fdfcec

Attributes
  • encryption_key

    F8576C6157B887D02399F8D62E57C6445C7A9466

  • install_name

    urbanvpn.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    VPN

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar family
    quasar
  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\UrbanVPN Installer.exe
    "C:\Users\Admin\AppData\Local\Temp\UrbanVPN Installer.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4180
    • C:\Windows\system32\VPN\urbanvpn.exe
      "C:\Windows\system32\VPN\urbanvpn.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4272

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        urbanvpn.exe
        • Path C:\Windows\system32\VPN\urbanvpn.exe
        • Size 3.1MB
        • SHA256 e582a6b95ad02b028a3cef7c8b0989cb9add3bba91008f43d80bde34e2dd22df
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/4180-0-0x0000000000320000-0x0000000000644000-memory.dmp
        Download

        memory/4180-1-0x000000001CAC0000-0x000000001CAD0000-memory.dmp
        Download

        memory/4272-7-0x000000001C860000-0x000000001C870000-memory.dmp
        Download

        memory/4272-8-0x000000001CBC0000-0x000000001CC10000-memory.dmp
        Download

        memory/4272-9-0x000000001CCD0000-0x000000001CD82000-memory.dmp
        Download

        memory/4272-10-0x000000001C860000-0x000000001C870000-memory.dmp
        Download