General

  • Target

    SystemPropertiesPerformance.exe

  • Size

    2.0MB

  • Sample

    240916-3x11qswfnj

  • MD5

    1c990f90b5e821825afe64e3b15eadec

  • SHA1

    c217d4abb7a9f19589e59e252ed781e36b9e99d8

  • SHA256

    409c5e0592dd38bf0d316a06bbe0d73732b07a4cc6bae85aae87a1f4c56c6f62

  • SHA512

    59176d283118f56d78e665a40441defdfd91ddd6d29965c2b76d25f72eeadc2bc9a23c5683b88fea55b7d87517b490b5b7c2f13b028e4c1746ed1270b314125c

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYy:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YE

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

      1c990f90b5e821825afe64e3b15eadec

    • SHA1

      c217d4abb7a9f19589e59e252ed781e36b9e99d8

    • SHA256

      409c5e0592dd38bf0d316a06bbe0d73732b07a4cc6bae85aae87a1f4c56c6f62

    • SHA512

      59176d283118f56d78e665a40441defdfd91ddd6d29965c2b76d25f72eeadc2bc9a23c5683b88fea55b7d87517b490b5b7c2f13b028e4c1746ed1270b314125c

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYy:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YE

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks