General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240807-dfdfnsyhnn

  • MD5

    8002dc8117cbe6ebcbfaf36bb28e88e3

  • SHA1

    efe5eed3bc761e1e62f08ebc92805e9654b6aa24

  • SHA256

    d6965856129d06addc58a24ddb896794c70ce2bd207c196ab9dc48dafc68b37f

  • SHA512

    cefb48180f95e4b7d1405e64cfe0f18e94052a52d63b7c2a38a183fab158327a1e49cdb83d04646f7f19fd4bb8f6b36f1c19baef85813b77887f6b38b775ede1

  • SSDEEP

    49152:XvrlL26AaNeWgPhlmVqvMQ7XSKqIYKjhtzoGd5THHB72eh2NT:XvRL26AaNeWgPhlmVqkQ7XSKqIYy

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

techfor1-59332.portmap.host::59332

Mutex

52632e42-8a63-4ed3-95d3-0a19933df815

Attributes
  • encryption_key

    6CA76EF64E195310669632231B8ED203A85BDDA1

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      8002dc8117cbe6ebcbfaf36bb28e88e3

    • SHA1

      efe5eed3bc761e1e62f08ebc92805e9654b6aa24

    • SHA256

      d6965856129d06addc58a24ddb896794c70ce2bd207c196ab9dc48dafc68b37f

    • SHA512

      cefb48180f95e4b7d1405e64cfe0f18e94052a52d63b7c2a38a183fab158327a1e49cdb83d04646f7f19fd4bb8f6b36f1c19baef85813b77887f6b38b775ede1

    • SSDEEP

      49152:XvrlL26AaNeWgPhlmVqvMQ7XSKqIYKjhtzoGd5THHB72eh2NT:XvRL26AaNeWgPhlmVqkQ7XSKqIYy

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks