General

  • Target

    Client-built.exe

  • Size

    348KB

  • Sample

    240412-xkwbtsda74

  • MD5

    46c2a971cec1f82ea7a338ab4a368f37

  • SHA1

    69b181896b53a27554a6535f61e1b1e785750f98

  • SHA256

    04b8bb3fc2b3311f5027fa536ec480a3211cbc4673efde460f59daf44a7a1f55

  • SHA512

    627ea3b4f030dc62fa13b8902dbc6d6e286e8ba93b08ae584f37d8dcc9933dfbe84dd27241510dd821bd58bb8f8621399cb85c4e35b35d7424c1e7be141fd80f

  • SSDEEP

    6144:MMNHXf500MOxK7ACSBybr7bbVJG6rCaI4CH0KM+:Zd50awACBlo6rPXCHs+

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

Lunasplanet-29399.portmap.host:29399

Mutex

QSR_MUTEX_3gXoc7Rbb6gDK9k7Ha

Attributes
  • encryption_key

    huAtWMa1sVtLD6rMH8Yv

  • install_name

    SubClient.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    SubClient.exe

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      348KB

    • MD5

      46c2a971cec1f82ea7a338ab4a368f37

    • SHA1

      69b181896b53a27554a6535f61e1b1e785750f98

    • SHA256

      04b8bb3fc2b3311f5027fa536ec480a3211cbc4673efde460f59daf44a7a1f55

    • SHA512

      627ea3b4f030dc62fa13b8902dbc6d6e286e8ba93b08ae584f37d8dcc9933dfbe84dd27241510dd821bd58bb8f8621399cb85c4e35b35d7424c1e7be141fd80f

    • SSDEEP

      6144:MMNHXf500MOxK7ACSBybr7bbVJG6rCaI4CH0KM+:Zd50awACBlo6rPXCHs+

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks