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

    297KB

  • Sample

    230608-q3vppafg65

  • MD5

    93f801058bb061be32af8c525baea538

  • SHA1

    b2351a923fb9cdaa8e99028dcb923bcbfbe3310f

  • SHA256

    aa2d99486c626b387ecc3878f14c7ae474b0f11baa16ba5099bfcbc8f91769e7

  • SHA512

    61cb9175c8842faf107f8794f312173bba25f3371549b10751f36d23ab56690924a473d5f5b91f778256be1c2e86db61956ee6f0e6c50a178b157e5393c31c73

  • SSDEEP

    6144:OOiBrrr6ddrSm3+Nw+v/i7bbD/TVz/SnawT:4BruhOni7DBz/SnawT

Score
10/10
quasarfbsystemspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

fbsystem

C2

5.tcp.eu.ngrok.io:12819

Mutex

1285744062619928830

Attributes
  • encryption_key

    QntjD0xW34hYkmLnJhDR

  • install_name

    fbsystem.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    fbsystem

  • subdirectory

    fbsystem

Targets

    • Target

      Client-built.exe

    • Size

      297KB

    • MD5

      93f801058bb061be32af8c525baea538

    • SHA1

      b2351a923fb9cdaa8e99028dcb923bcbfbe3310f

    • SHA256

      aa2d99486c626b387ecc3878f14c7ae474b0f11baa16ba5099bfcbc8f91769e7

    • SHA512

      61cb9175c8842faf107f8794f312173bba25f3371549b10751f36d23ab56690924a473d5f5b91f778256be1c2e86db61956ee6f0e6c50a178b157e5393c31c73

    • SSDEEP

      6144:OOiBrrr6ddrSm3+Nw+v/i7bbD/TVz/SnawT:4BruhOni7DBz/SnawT

    Score
    10/10
    quasarfbsystemspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Legitimate hosting services abused for malware hosting/C2

    • 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 Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks