Analysis

  • max time kernel
    141s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-05-2024 17:54

General

  • Target

    65ea4d9daebf85054243db23a85163e0.exe

  • Size

    3.1MB

  • MD5

    65ea4d9daebf85054243db23a85163e0

  • SHA1

    5974084a8e436c90cc5227e17423c62ae7d982f8

  • SHA256

    0170695628a300a03e01da6352aa80d75dac69694a65d5962aaf1bdb89191095

  • SHA512

    db83f073e73a4b83fbf78390b53ce4d4965058f0f5cb5f1406908d321c65d3999ea0f0476d711110bbc4bfdd80fdd0611474018e65831d3ff810ce6281806f25

  • SSDEEP

    49152:mvulL26AaNeWgPhlmVqvMQ7XSKhr/qQBxCLoGdqiOTHHB72eh2NT:mveL26AaNeWgPhlmVqkQ7XSKB/s

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

aldo_R3GON

C2

peurnick24.bumbleshrimp.com:7310

Mutex

77413eeb-5d1c-4bf8-986f-3c9d48a16cd6

Attributes
  • encryption_key

    A3226D93494A561FEC5149605B952B09B55012C6

  • 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 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 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\65ea4d9daebf85054243db23a85163e0.exe
    "C:\Users\Admin\AppData\Local\Temp\65ea4d9daebf85054243db23a85163e0.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:3024
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=1300,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4240 /prefetch:8
    1⤵
      PID:3068

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3024-0-0x00007FFCC2C33000-0x00007FFCC2C35000-memory.dmp

      Filesize

      8KB

    • memory/3024-1-0x00000000005F0000-0x0000000000914000-memory.dmp

      Filesize

      3.1MB

    • memory/3024-2-0x00007FFCC2C30000-0x00007FFCC36F1000-memory.dmp

      Filesize

      10.8MB

    • memory/3024-3-0x000000001C110000-0x000000001C160000-memory.dmp

      Filesize

      320KB

    • memory/3024-4-0x000000001C220000-0x000000001C2D2000-memory.dmp

      Filesize

      712KB

    • memory/3024-7-0x000000001C1A0000-0x000000001C1B2000-memory.dmp

      Filesize

      72KB

    • memory/3024-8-0x000000001CD20000-0x000000001CD5C000-memory.dmp

      Filesize

      240KB

    • memory/3024-9-0x00007FFCC2C33000-0x00007FFCC2C35000-memory.dmp

      Filesize

      8KB

    • memory/3024-10-0x00007FFCC2C30000-0x00007FFCC36F1000-memory.dmp

      Filesize

      10.8MB