Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 16:14

General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • MD5

    3d96f1810e5a9dd5f086eb77b72d379f

  • SHA1

    45ee6a0ff48f793c8604326eb5e7df2cf7d4fc1a

  • SHA256

    71188e7e78b2f453e8e8e1465f626b5ed8e31e024612fc451cd25cbf0656332e

  • SHA512

    3ce8f80c32038427eebea6f220671bd62c8986a93f6223f7baa96d65a49351502bf317ab85d2b285d6c6c3363fbf24fa5a028cdafab2a902164a6ec6aa28807c

  • SSDEEP

    49152:HvTlL26AaNeWgPhlmVqvMQ7XSKPR9/BxwLoGvRTHHB72eh2NT:HvJL26AaNeWgPhlmVqkQ7XSKPR96

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Client04

C2

stable-notably-hound.ngrok-free.app:4782

Mutex

0fb4199b-8dca-41a3-9119-beda5c96ed5a

Attributes
  • encryption_key

    A5F0EE2DBE7A3009387617912AFB48C127E2B576

  • 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.

  • Quasar family
  • Quasar payload 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 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
    PID:2656

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2656-0-0x00007FF9024F3000-0x00007FF9024F5000-memory.dmp

    Filesize

    8KB

  • memory/2656-1-0x0000000000740000-0x0000000000A64000-memory.dmp

    Filesize

    3.1MB

  • memory/2656-2-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

    Filesize

    10.8MB

  • memory/2656-3-0x000000001D9C0000-0x000000001DA10000-memory.dmp

    Filesize

    320KB

  • memory/2656-4-0x000000001DAD0000-0x000000001DB82000-memory.dmp

    Filesize

    712KB

  • memory/2656-5-0x00007FF9024F3000-0x00007FF9024F5000-memory.dmp

    Filesize

    8KB

  • memory/2656-6-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

    Filesize

    10.8MB