General

  • Target

    SystemPropertiesPerformance.exe

  • Size

    2.0MB

  • Sample

    240916-vrfhvazbqa

  • MD5

    3f1ca0f6d1a97c36b8d4ddcdfd4fc1d8

  • SHA1

    20994cc36bc2c5a862543f32b99d4e01e28ecbcc

  • SHA256

    d4872aa6390cd5fc2d6935ee98dc04e97c67e34085cd43d1c23aeb320b66ce1f

  • SHA512

    586ace05c6c756616d34c89a8113fecc008ae256c12f698de2d5354cac266824a667e9d100fb3b53f04be2f6fbf66b7248695a7aa65eaadbdae950b7976258d3

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYK:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Ys

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

EbayProfiles

C2

5.8.88.191:443

sockartek.icu:443

Mutex

QSR_MUTEX_0kBRNrRz5TDLEQouI0

Attributes
  • encryption_key

    MWhG6wsClMX8aJM2CVXT

  • install_name

    winsock.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    win defender run

  • subdirectory

    SubDir

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

Targets

    • Target

      SystemPropertiesPerformance.exe

    • Size

      2.0MB

    • MD5

      3f1ca0f6d1a97c36b8d4ddcdfd4fc1d8

    • SHA1

      20994cc36bc2c5a862543f32b99d4e01e28ecbcc

    • SHA256

      d4872aa6390cd5fc2d6935ee98dc04e97c67e34085cd43d1c23aeb320b66ce1f

    • SHA512

      586ace05c6c756616d34c89a8113fecc008ae256c12f698de2d5354cac266824a667e9d100fb3b53f04be2f6fbf66b7248695a7aa65eaadbdae950b7976258d3

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYK:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Ys

    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks