Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Client-built.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    241227-ej8aws1ngv

  • MD5

    7875137406f7a2a8ef308a0155274879

  • SHA1

    950cdcf1c2a5432825d941224c99d399f2fa4ec6

  • SHA256

    b03fe87bdc5b196912492fbbf7de2d5d052ba9be2387731c485d71aa72f2682c

  • SHA512

    f7ca3bc5197fa1711550a4bc880c42b35913292f1b1e4761912ba50a95357674b3735004076401b5bcf9af88c6e8c5be928d49b97f10ff039412a0d524d03a47

  • SSDEEP

    49152:rvvI22SsaNYfdPBldt698dBcjH5oHSmztNoGd5THHB72eh2NT:rvg22SsaNYfdPBldt6+dBcjH5oHD

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

99.158.40.205:4782

Mutex

9b87aeaa-0335-4ea7-8b7c-669e8b94b68e

Attributes
  • encryption_key

    EF070280F01636B40C0F0E99C1661A590CF4BA82

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      7875137406f7a2a8ef308a0155274879

    • SHA1

      950cdcf1c2a5432825d941224c99d399f2fa4ec6

    • SHA256

      b03fe87bdc5b196912492fbbf7de2d5d052ba9be2387731c485d71aa72f2682c

    • SHA512

      f7ca3bc5197fa1711550a4bc880c42b35913292f1b1e4761912ba50a95357674b3735004076401b5bcf9af88c6e8c5be928d49b97f10ff039412a0d524d03a47

    • SSDEEP

      49152:rvvI22SsaNYfdPBldt698dBcjH5oHSmztNoGd5THHB72eh2NT:rvg22SsaNYfdPBldt6+dBcjH5oHD

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks