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 540KB
  • Sample240327-3v8ykade83
  • SHA256 c4b75cdc84b5570235c4568fd085b2f82e3fa7ce16e39d56fddc821416129efb
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasarmicrosoftedgespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 3.1.5.0

Botnet

  • MicrosoftEdge

C2

  • common-congratulations.gl.at.ply.gg:65362

  • 127.0.0.1:65362

Mutex

  • QSR_MUTEX_MKoa3FQkTUYpcQOoO7

Attributes
  • encryption_key

    4ScLZeaXkOHrLSyZOCm8

  • install_name

    MicrosoftEdge.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    MicrosoftEdge

  • subdirectory

    MicrosoftEdge

Targets

    • Target
      Client-built.exe
    • Size 540KB
    • SHA256 c4b75cdc84b5570235c4568fd085b2f82e3fa7ce16e39d56fddc821416129efb
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasarmicrosoftedgespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks