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

    250125-q7pz1avqht

  • MD5

    8b4c57a61e6c5676459af46e842c6515

  • SHA1

    4fdd72e3c52357b8d73bfd6e41ed23900c53b864

  • SHA256

    df3a935152015d9e0936d40f78012b2ecdd14c1fb1d58305f7e815f4ed1fefce

  • SHA512

    0168318edff24ad03e6105e9dd9e6f430526f9b39b9d324fd43d690877a9b0e3bb08fdb8f572f6223186c9bd7ef1da1e59dd75caecbac0c0c2d979bacb8b08fe

  • SSDEEP

    49152:6vAt62XlaSFNWPjljiFa2RoUYI48RJ6bbR3LoGd8QGTHHB72eh2NT:6vs62XlaSFNWPjljiFXRoUYI48RJ6t

Score
10/10
quasaroffice04discoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

sigma:4782

Mutex

dcd58018-6881-4bdc-ada3-43241c4a02d7

Attributes
  • encryption_key

    2F0E0A6E0184EFAA28DCBF2BCF17796A6A6FA235

  • install_name

    Flaretest.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      8b4c57a61e6c5676459af46e842c6515

    • SHA1

      4fdd72e3c52357b8d73bfd6e41ed23900c53b864

    • SHA256

      df3a935152015d9e0936d40f78012b2ecdd14c1fb1d58305f7e815f4ed1fefce

    • SHA512

      0168318edff24ad03e6105e9dd9e6f430526f9b39b9d324fd43d690877a9b0e3bb08fdb8f572f6223186c9bd7ef1da1e59dd75caecbac0c0c2d979bacb8b08fe

    • SSDEEP

      49152:6vAt62XlaSFNWPjljiFa2RoUYI48RJ6bbR3LoGd8QGTHHB72eh2NT:6vs62XlaSFNWPjljiFXRoUYI48RJ6t

    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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks