Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    250115-zm4r4avjfz

  • MD5

    9e50097d21a19941ba554a3ee1f808c7

  • SHA1

    af332959d09f257bfb6dc0fe6783e359da2bf4cc

  • SHA256

    ad1f0223d956f363ef09ac2112ed249c0057f81ff96ab9bf3d89eef466ba7695

  • SHA512

    61365d695b888d468400f34afc91bef1ddf199e94214eafceef4bdda6e263d07ec07831370d2f4445e1c2a39d2fdc6efd951645dbb0eb7a56f93feb0c16b41a6

  • SSDEEP

    49152:Kvot62XlaSFNWPjljiFa2RoUYI15IcEiOKk/tLoGdboTHHB72eh2NT:Kvk62XlaSFNWPjljiFXRoUYIvIL

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.5:139

Mutex

4a047de5-e1ae-4dca-af7e-8a42a9c851fd

Attributes
  • encryption_key

    5B8D480293BBEEB0E867D6BE63ACD141EC9C469F

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      9e50097d21a19941ba554a3ee1f808c7

    • SHA1

      af332959d09f257bfb6dc0fe6783e359da2bf4cc

    • SHA256

      ad1f0223d956f363ef09ac2112ed249c0057f81ff96ab9bf3d89eef466ba7695

    • SHA512

      61365d695b888d468400f34afc91bef1ddf199e94214eafceef4bdda6e263d07ec07831370d2f4445e1c2a39d2fdc6efd951645dbb0eb7a56f93feb0c16b41a6

    • SSDEEP

      49152:Kvot62XlaSFNWPjljiFa2RoUYI15IcEiOKk/tLoGdboTHHB72eh2NT:Kvk62XlaSFNWPjljiFXRoUYIvIL

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks