General

  • Target

    SystemPropertiesPerformance.exe

  • Size

    2.0MB

  • Sample

    240916-vw981szflk

  • MD5

    eca602f0dfc4e52d5197849d0a774204

  • SHA1

    a928a82531d4ac3dd9e7fff4527fd5e77064bf12

  • SHA256

    31effd6b72a450f574df2135febd03b9f5315a75be9420731f40df8e5086dba3

  • SHA512

    7a87198c29baac0336c4eb060c33bf0485675cf6a14e2a4ae58fc966f7e61c8b3b7f05a4b7cce9eb74fbe39df7702a4a3d16e6a6dd6da23ab3dd0f8d6e5288ed

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYN:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YL

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

      eca602f0dfc4e52d5197849d0a774204

    • SHA1

      a928a82531d4ac3dd9e7fff4527fd5e77064bf12

    • SHA256

      31effd6b72a450f574df2135febd03b9f5315a75be9420731f40df8e5086dba3

    • SHA512

      7a87198c29baac0336c4eb060c33bf0485675cf6a14e2a4ae58fc966f7e61c8b3b7f05a4b7cce9eb74fbe39df7702a4a3d16e6a6dd6da23ab3dd0f8d6e5288ed

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYN:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YL

    • 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