Overview

overview

10

Static

static

10

Client-built.exe

windows10-1703-x64

10

Client-built.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    405KB

  • Sample

    240614-25grdszdrg

  • MD5

    0c84b58a5322284269f3b86e648e1fc8

  • SHA1

    6776c3963a64a3ace4caaff164669364356f72aa

  • SHA256

    47f06153275d1f01d1d7410eb5917aead5a79660be5da59bf51f31698343c357

  • SHA512

    02bc07552096f2b052e064ed2941cde5b70058066b614fa7374dbf7aa2177458a22d9746181b8f88e3468b252adf7e1aa1518ed9085ed78af5b736a02fa297d7

  • SSDEEP

    6144:yphjZx5jbx+DgrQo2fVH/i96bpjWprW5hthvo5lDzWEi5HFkgDVc:kjrZbaVfi6SGfel/WnHxDVc

Score
10/10
quasarschoolspywaretrojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

School

C2

runderscore00-37568.portmap.host:37568

Mutex

QSR_MUTEX_BNyj3AdZ8NIXACv5S5

Attributes
  • encryption_key

    G3FFg7Ec2ieFqaQw5SZ2

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      405KB

    • MD5

      0c84b58a5322284269f3b86e648e1fc8

    • SHA1

      6776c3963a64a3ace4caaff164669364356f72aa

    • SHA256

      47f06153275d1f01d1d7410eb5917aead5a79660be5da59bf51f31698343c357

    • SHA512

      02bc07552096f2b052e064ed2941cde5b70058066b614fa7374dbf7aa2177458a22d9746181b8f88e3468b252adf7e1aa1518ed9085ed78af5b736a02fa297d7

    • SSDEEP

      6144:yphjZx5jbx+DgrQo2fVH/i96bpjWprW5hthvo5lDzWEi5HFkgDVc:kjrZbaVfi6SGfel/WnHxDVc

    Score
    10/10
    quasarschoolspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks