Overview

overview

10

Static

static

3

implant.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    41s
  • max time network
    43s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    18-06-2024 08:17

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General

  • Target

    implant.exe

  • Size

    1.8MB

  • MD5

    233a48808dd0c288bd76414092e4a9d5

  • SHA1

    6503cde3ed01cafacb9c8fa1f0dcc3d339ed08ae

  • SHA256

    8eeb7a8c26548c7779ebb2c0af82cdeac5f4058fc3149ecbd4c08ccd89c0359a

  • SHA512

    0d49b07d36ff194fa8d47c54b14e55933d5c55bfad8caab58749d06f81014a524cdd0bd4a5003a66d2c9092f7abd72e62ee410110c8cfb6379419c5e5c7324ba

  • SSDEEP

    24576:4jkSAn8Q8S4+MUUOOXXao1GiajDu1mf/NRR/VIH06iy9FMB47:45AN/40Ho1Nal3ZdIU6isP

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

127.0.0.1:4782

Mutex

b04ba2ce-b74d-409a-9f5c-bdaffe1644ec

Attributes
  • encryption_key

    3C410D3A0BD1E76F9F4B11AD742F61FAE2E183E6

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\implant.exe
    "C:\Users\Admin\AppData\Local\Temp\implant.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1652

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1652-0-0x00007FF890013000-0x00007FF890015000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1652-1-0x00007FF890010000-0x00007FF890AD2000-memory.dmp
    Filesize

    10.8MB

    Download
  • memory/1652-2-0x00007FF679CE0000-0x00007FF679EB2000-memory.dmp
    Filesize

    1.8MB

    Download
  • memory/1652-3-0x000001F4A2C00000-0x000001F4A2F24000-memory.dmp
    Filesize

    3.1MB

    Download
  • memory/1652-4-0x00007FF890010000-0x00007FF890AD2000-memory.dmp
    Filesize

    10.8MB

    Download
  • memory/1652-5-0x000001F4A3060000-0x000001F4A30B0000-memory.dmp
    Filesize

    320KB

    Download
  • memory/1652-6-0x000001F4A3D90000-0x000001F4A3E42000-memory.dmp
    Filesize

    712KB

    Download
  • memory/1652-8-0x00007FF890013000-0x00007FF890015000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1652-7-0x00007FF679CE0000-0x00007FF679EB2000-memory.dmp
    Filesize

    1.8MB

    Download
  • memory/1652-9-0x00007FF890010000-0x00007FF890AD2000-memory.dmp
    Filesize

    10.8MB

    Download
  • memory/1652-10-0x00007FF890010000-0x00007FF890AD2000-memory.dmp
    Filesize

    10.8MB

    Download
  • memory/1652-11-0x00007FF679CE0000-0x00007FF679EB2000-memory.dmp
    Filesize

    1.8MB

    Download
  • memory/1652-13-0x00007FF890010000-0x00007FF890AD2000-memory.dmp
    Filesize

    10.8MB

    Download
  • memory/1652-15-0x00007FF679CE0000-0x00007FF679EB2000-memory.dmp
    Filesize

    1.8MB

    Download
  • memory/1652-16-0x00007FF890010000-0x00007FF890AD2000-memory.dmp
    Filesize

    10.8MB

    Download