Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    143s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-06-2024 11:46

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • MD5

    2eac18132d5a2d8a22f13f0501614217

  • SHA1

    9f245f4eeebe6453bd0cb20cac7816be6a3fd2f2

  • SHA256

    d8538711014fff7a8fbe116e2ed843f03497976641d52e949b1c922496f5f52f

  • SHA512

    8041db333b0629bb37f8fe44a9ee0136fdc9bce0acd1e57ebef7a6537398c421dd6a57815d29e0ca529f77684a1e632a64b63ef4804016db2289f47ec73803ae

  • SSDEEP

    49152:7vRG42pda6D+/PjlLOlg6yQipVTwtKjJoLoGXBJTHHB72eh2NT:7vg42pda6D+/PjlLOlZyQipVTwt5

Score
10/10
quasarmyquas2spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

myquas2

C2

totallylegit.duckdns.org:8888

216.238.78.129:8888
Mutex

caa293c4-4d09-4239-87ae-8e10f33f71f3

Attributes
  • encryption_key

    D93687C0D77BAB971E7CA0A8526CEA34999D39E3

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client-built.exe
    "C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2348
  • 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=1320,i,17096020621006928097,15544233752327415349,262144 --variations-seed-version --mojo-platform-channel-handle=3240 /prefetch:8
    1⤵
      PID:4576

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2348-0-0x00007FFCBC053000-0x00007FFCBC055000-memory.dmp

      Filesize

      8KB

      Download

    • memory/2348-1-0x0000000000EE0000-0x0000000001204000-memory.dmp

      Filesize

      3.1MB

      Download

    • memory/2348-2-0x00007FFCBC050000-0x00007FFCBCB11000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2348-3-0x000000001BE90000-0x000000001BEE0000-memory.dmp

      Filesize

      320KB

      Download

    • memory/2348-4-0x000000001C2B0000-0x000000001C362000-memory.dmp

      Filesize

      712KB

      Download

    • memory/2348-5-0x00007FFCBC053000-0x00007FFCBC055000-memory.dmp

      Filesize

      8KB

      Download

    • memory/2348-6-0x00007FFCBC050000-0x00007FFCBCB11000-memory.dmp

      Filesize

      10.8MB

      Download