Overview

overview

10

Static

static

3

1121.exe

windows7-x64

10

1121.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    1121.exe.v
  • Size 25.0MB
  • Sample231018-h528jsdf29
  • SHA256 42adfe25ed80bc9be884e2457c32af2779db6ebb4dac42dc25e10df126e84b7f
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 27.124.4.200:7777

Mutex

  • ca81bdec-cd21-453c-80fc-28d569d9e9f1

Attributes
  • encryption_key

    24B6ADE5FE27A1D15C1BF33BBEC6447647F69663

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      1121.exe.v
    • Size 25.0MB
    • SHA256 42adfe25ed80bc9be884e2457c32af2779db6ebb4dac42dc25e10df126e84b7f
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • 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