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

    250419-3bzwjsw1as

  • MD5

    4cf97b8b165eb337c55a54bdc3c28cd9

  • SHA1

    c164d3f18d26926f7f93a0a91ac3d12fcdeb4f04

  • SHA256

    26be6ca6971dd5944143a5303bc41d6d5659c440d67766cb36f1d2512cdc9e0f

  • SHA512

    818a25f992061534a6682008695c57de24b38dbce83db21927a2b328a58b352a2d526664cb77ad0c48910a134d99fc2edfcbe5a8a142ff40a664d3a0ede15b40

  • SSDEEP

    49152:rvnI22SsaNYfdPBldt698dBcjHd4xNESE1k/iiLoGd/THHB72eh2NT:rvI22SsaNYfdPBldt6+dBcjHWxss

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.224:4782

Mutex

4006408b-5bd7-4d76-aa52-365c5241bff9

Attributes
  • encryption_key

    582E88CF49179DB0D59A8C982202EC5C7DD95E0B

  • 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

      4cf97b8b165eb337c55a54bdc3c28cd9

    • SHA1

      c164d3f18d26926f7f93a0a91ac3d12fcdeb4f04

    • SHA256

      26be6ca6971dd5944143a5303bc41d6d5659c440d67766cb36f1d2512cdc9e0f

    • SHA512

      818a25f992061534a6682008695c57de24b38dbce83db21927a2b328a58b352a2d526664cb77ad0c48910a134d99fc2edfcbe5a8a142ff40a664d3a0ede15b40

    • SSDEEP

      49152:rvnI22SsaNYfdPBldt698dBcjHd4xNESE1k/iiLoGd/THHB72eh2NT:rvI22SsaNYfdPBldt6+dBcjHWxss

    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 v16

Tasks