Overview

overview

10

Static

static

1

sample.html

windows11-21h2-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    sample
  • Size 10KB
  • Sample241007-3k8j2sscpe
  • SHA256 f7d95ff5dec063b701843d93a4029e548aa7dd75a52afd2da2e45eca36fbed23
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04defense_evasiondiscoverymotwphishingspywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 192.168.87.77:4782

Mutex

  • d11f01e2-f047-4b1d-87d9-5ba9990ceadc

Attributes
  • encryption_key

    8D80748F4532F141468BEDFB0B416C2797D791C9

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      sample
    • Size 10KB
    • SHA256 f7d95ff5dec063b701843d93a4029e548aa7dd75a52afd2da2e45eca36fbed23
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasaroffice04defense_evasiondiscoverymotwphishingspywaretrojan

    • 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

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

      phishingmotw

    • Network Share Discovery

      Attempt to gather information on host network.

      discovery
    behavioral1

MITRE ATT&CK Enterprise v15

Tasks