Overview

overview

10

Static

static

10

yolly.io.exe

windows10-2004-x64

10

yolly.io.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    yolly.io.exe
  • Size 3.1MB
  • Sample260804-ce1zxabb99
  • SHA256 78c272690130b6aca35dff71e88600ff42c6cef1176a977e68b62a5850393bd9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04executionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • yolly.io:443

  • www.yolly.io:443

  • yolly.io:80

  • www.yolly.io:80

Mutex

  • e7e6b9ce-57f9-4b92-bcf0-8a40ffd044a9

Attributes
  • encryption_key

    ED3227F773701D05083B11A65776F95F93EEEF5E

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      yolly.io.exe
    • Size 3.1MB
    • SHA256 78c272690130b6aca35dff71e88600ff42c6cef1176a977e68b62a5850393bd9
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04executionquasarpersistencespywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks