Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Client-built.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    Client-built.exe
  • Size 3.1MB
  • Sample260413-sxpycsbs9q
  • SHA256 cc2e29ad7916afe48205013541cbb77e88b6fe672bd92b0c7e4c9508b4578769
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04executionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • ga888.mobile:443

  • bj8826.com:443

  • bj88jpn.com:443

  • gokulmimrot.in.net:443

  • nce.de.com:443

  • grn.uk.com:443

Mutex

  • bd8d9841-9321-4d03-b7a9-ba6f9c368302

Attributes
  • encryption_key

    6036311E00155C31A9D54EA6B1527D8921B0E84A

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      Client-built.exe
    • Size 3.1MB
    • SHA256 cc2e29ad7916afe48205013541cbb77e88b6fe672bd92b0c7e4c9508b4578769
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04executionquasarpersistencespywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks