General

  • Target

    SystemPropertiesPerformance.exe

  • Size

    2.0MB

  • Sample

    240917-pyyp4stelr

  • MD5

    129a0510883f6ae00a92d2e01d2a44be

  • SHA1

    af439e5a6adb421f516dbb12846510445b10998b

  • SHA256

    0d2e6a07b622d817482a0239b69a67a300922bb58e8d96551f6400ce362f2e43

  • SHA512

    aefef5f1257dd792d57616b9a8bb9774c8a4eb7b4777acec417e0971355bf0377c485d6a0d077f82cf7cc9f97cca3993e4dd7114bc9d2bb12a30d2e0f5573ae3

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY9:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YX

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

      129a0510883f6ae00a92d2e01d2a44be

    • SHA1

      af439e5a6adb421f516dbb12846510445b10998b

    • SHA256

      0d2e6a07b622d817482a0239b69a67a300922bb58e8d96551f6400ce362f2e43

    • SHA512

      aefef5f1257dd792d57616b9a8bb9774c8a4eb7b4777acec417e0971355bf0377c485d6a0d077f82cf7cc9f97cca3993e4dd7114bc9d2bb12a30d2e0f5573ae3

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY9:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YX

    • 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