Overview

overview

10

Static

static

10

$sxr-Uni.exe

windows10-1703-x64

10

$sxr-Uni.exe

windows10-2004-x64

10

$sxr-Uni.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    $sxr-Uni.exe

  • Size

    349KB

  • Sample

    240611-vrrk4svdjp

  • MD5

    1ec86aa544089409730a3777da35c70a

  • SHA1

    b592008ecc06d47bd7170f0ad3799e114139df0f

  • SHA256

    5d533976a3ac74eede22a42c2776ce3a392596b98c5ef0e6bed98b6395fb0c48

  • SHA512

    fbd7a000b74f0488039aa9213d56cf464b55629c9c649bde2835216f699f51f921d417d090e7e2e0d6e7c10a07c4b767ada82a8ac45fcfc10c950163f2df9715

  • SSDEEP

    6144:ErL3HRsM+OFZHBcFU4EljaWbrqXMxxz5A8XklSoj:6VP+MXuCJayqXMr5mlSoj

Score
10/10
quasarslavespywaretrojan

Malware Config

Extracted

Family

quasar

Version

3.0.0

Botnet

Slave

C2

runderscore00-63294.portmap.host:63294

Mutex

QSR_MUTEX_zImH6b2ccpa3QdeboZ

Attributes
  • encryption_key

    Ep14qTjvhc0fuqxF9hv4

  • install_name

    $sxr-powershell.exe

  • log_directory

    $sxr-Logs

  • reconnect_delay

    3000

  • startup_key

    Powershell

  • subdirectory

    $sxr-seroxen2

Targets

    • Target

      $sxr-Uni.exe

    • Size

      349KB

    • MD5

      1ec86aa544089409730a3777da35c70a

    • SHA1

      b592008ecc06d47bd7170f0ad3799e114139df0f

    • SHA256

      5d533976a3ac74eede22a42c2776ce3a392596b98c5ef0e6bed98b6395fb0c48

    • SHA512

      fbd7a000b74f0488039aa9213d56cf464b55629c9c649bde2835216f699f51f921d417d090e7e2e0d6e7c10a07c4b767ada82a8ac45fcfc10c950163f2df9715

    • SSDEEP

      6144:ErL3HRsM+OFZHBcFU4EljaWbrqXMxxz5A8XklSoj:6VP+MXuCJayqXMr5mlSoj

    Score
    10/10
    quasarslavespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

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

    • 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.

    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v15

Tasks