Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    50s
  • max time network
    53s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-05-2024 17:12

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General

  • Target

    Client-built.exe

  • Size

    3.2MB

  • MD5

    284e0833f30177b1f5b2600ef6d2753c

  • SHA1

    ab0d79ac14db531c1e8608d30c850c7b7b1e3656

  • SHA256

    1fe995e836f0298728468bd5e6380fe5c9c8a823aa37762305ac7b4b5e110a03

  • SHA512

    22ca084993478b8ac9955e3824ad0c39da843b40a275905e992d8008bd8d746691b71cf8a6f51f6abe7bfad288b8b40b13f7069b1442118f2250f54db14d4d06

  • SSDEEP

    49152:GvyI22SsaNYfdPBldt698dBcjH5hRJ6GbR3LoGdV4THHB72eh2NTw:Gvf22SsaNYfdPBldt6+dBcjH5hRJ6AA

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

46.125.249.62:4782

Mutex

a40814bd-3635-4179-9c1b-2eb3cb2a0abd

Attributes
  • encryption_key

    3ACA51703839A9056B97F8F1EB01D62FE0EA2155

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar payload 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

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 FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:2996

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2996-0-0x00007FFA85653000-0x00007FFA85655000-memory.dmp
    Filesize

    8KB

    Download
  • memory/2996-1-0x0000000000E30000-0x0000000001160000-memory.dmp
    Filesize

    3.2MB

    Download
  • memory/2996-2-0x00007FFA85650000-0x00007FFA86111000-memory.dmp
    Filesize

    10.8MB

    Download
  • memory/2996-3-0x000000001DA60000-0x000000001DAB0000-memory.dmp
    Filesize

    320KB

    Download
  • memory/2996-4-0x000000001DB70000-0x000000001DC22000-memory.dmp
    Filesize

    712KB

    Download
  • memory/2996-5-0x00007FFA85653000-0x00007FFA85655000-memory.dmp
    Filesize

    8KB

    Download
  • memory/2996-6-0x00007FFA85650000-0x00007FFA86111000-memory.dmp
    Filesize

    10.8MB

    Download