Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    241222-c5l9fazpay

  • MD5

    455889b66765b1638dd978a0280f1c7e

  • SHA1

    774c78b88528e366cb46ba6723f7bbc7dbb192c1

  • SHA256

    4ad66f08167a301d51c613fa49c846297787a2fbc57d526c4885b419f61bb78f

  • SHA512

    df5c6d8615e1f41f4d908b62f052805ee8b9dd50d129a9ae2da66888cb60b985a841b00f74090c436e05d6b26672d6fc9957a551cbbf30d91a2af4d5d81e3d3e

  • SSDEEP

    49152:avBt62XlaSFNWPjljiFa2RoUYIWXhymzg8oGd5ZTHHB72eh2NT:avr62XlaSFNWPjljiFXRoUYIWXhnp

Score
10/10
quasaroffice04discoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

JJ:4782

192.168.10.1:4782
Mutex

9a10c5be-59aa-4915-9bd2-d92256f2c938

Attributes
  • encryption_key

    83ADBC9532F819159CF9138DCD18B9BF646C2117

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Discord

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      455889b66765b1638dd978a0280f1c7e

    • SHA1

      774c78b88528e366cb46ba6723f7bbc7dbb192c1

    • SHA256

      4ad66f08167a301d51c613fa49c846297787a2fbc57d526c4885b419f61bb78f

    • SHA512

      df5c6d8615e1f41f4d908b62f052805ee8b9dd50d129a9ae2da66888cb60b985a841b00f74090c436e05d6b26672d6fc9957a551cbbf30d91a2af4d5d81e3d3e

    • SSDEEP

      49152:avBt62XlaSFNWPjljiFa2RoUYIWXhymzg8oGd5ZTHHB72eh2NT:avr62XlaSFNWPjljiFXRoUYIWXhnp

    Score
    10/10
    quasaroffice04discoveryspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks