Overview

overview

10

Static

static

1

ShadowClient.bat

windows10-2004-x64

10

Sharing

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General

  • Target

    ShadowClient.bat

  • Size

    1.8MB

  • Sample

    250209-l3amasvmbn

  • MD5

    ad49c9d99ba722ed70c4c2d36dc35a5c

  • SHA1

    4128247edc2f472e57d305ce3ca1c03c4125eb08

  • SHA256

    f3be425deec579961c261213f1a50065e1b12ccec5a0a2d7df1eed1adce2f438

  • SHA512

    acdf14b53404f31efab720dbbb854a3e71b6c64f1125ed9c2895677239e40436d17d0159de0376c5e0e35a7d76f109d9ee6450939b98de4cf4e80475ac839c44

  • SSDEEP

    24576:SzBY2ensySGbQGBc+8ZuuuZE9gngrghAcvZkOgrLREdcTGvB9tUMNTfTow+q7LIm:B0U8/LOg8hAX5EPpsqLNjfg6X

Score
10/10
quasaroffice04discoveryexecutionspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.0.0

Botnet

Office04

C2

185.208.159.150:7070

Mutex

f11e5613-720e-4449-82c2-732abf016f5a

Attributes
  • encryption_key

    01C9467A5332046D70A97F8EE00AFEB90E173056

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      ShadowClient.bat

    • Size

      1.8MB

    • MD5

      ad49c9d99ba722ed70c4c2d36dc35a5c

    • SHA1

      4128247edc2f472e57d305ce3ca1c03c4125eb08

    • SHA256

      f3be425deec579961c261213f1a50065e1b12ccec5a0a2d7df1eed1adce2f438

    • SHA512

      acdf14b53404f31efab720dbbb854a3e71b6c64f1125ed9c2895677239e40436d17d0159de0376c5e0e35a7d76f109d9ee6450939b98de4cf4e80475ac839c44

    • SSDEEP

      24576:SzBY2ensySGbQGBc+8ZuuuZE9gngrghAcvZkOgrLREdcTGvB9tUMNTfTow+q7LIm:B0U8/LOg8hAX5EPpsqLNjfg6X

    Score
    10/10
    quasaroffice04discoveryexecutionspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks