Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Client-built.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/11/2026, 14:06

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    Client-built.exe
  • Size 3.1MB
  • Sample261109-reqw9scv5w
  • SHA256 07d456b5888d4676842f1a365c92c3a256a626437a435cf36121aaad927ae6e6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
au88discoveryexecutionquasarpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • au88

C2

  • mm99.qpon:4782

  • mu88.uk.com:4782

  • koinslot168-f.cc:4782

  • pabwa.africa:4782

  • mu-88.sa.com:4782

  • awedi.africa:4782

  • slotslotbentley.cc:4782

  • mm88speed.com:4782

  • shio4d.com.co:4782

  • xgirls.in.net:4782

  • www.lifeatsea.in.net:4782

  • patur.in:4782

  • moviesda3.co:4782

  • restorepi.co:4782

  • alquimi.co:4782

  • boatique.co:4782

  • awakespace.co:4782

  • gambey.in:4782

  • thecoffeenomad.co:4782

  • koshikien.co:4782

Mutex

  • 273696bc-a6b2-4c7a-9e8a-e8ad984ce338

Attributes
  • encryption_key

    61D61573755A2E8791F777F44FE72A8C404B3F90

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    500

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar payload 2 IoCs
  • Executes dropped EXE 2 IoCs
  • 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.

    discovery
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client-built.exe
    "C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1456
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:4516
    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3916
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1436
  • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
    C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:872

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Client.exe
        • Path C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
        • Size 3.1MB
        • SHA256 07d456b5888d4676842f1a365c92c3a256a626437a435cf36121aaad927ae6e6
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1456-0-0x0000000000880000-0x0000000000BA6000-memory.dmp
        Download

        memory/1456-1-0x0000000002F40000-0x0000000002F50000-memory.dmp
        Download

        memory/3916-8-0x000000001B520000-0x000000001B530000-memory.dmp
        Download

        memory/3916-11-0x000000001C670000-0x000000001C722000-memory.dmp
        Download

        memory/3916-10-0x000000001B320000-0x000000001B370000-memory.dmp
        Download