General

  • Target

    SystemPropertiesPerformance.exe

  • Size

    2.0MB

  • Sample

    240916-y6ndsayajb

  • MD5

    8c1f6b09b48d62ca43eba98909547454

  • SHA1

    3967abfd7c6dde46778be79a1b38cdd0bf1d5e2e

  • SHA256

    04a94334848c34555dc60568905596d4649c850ba05d39aef73db52f5e19f968

  • SHA512

    1f3c3e49ff70d7380156cf95a276acaef8c406c95b595d5ec4cb02e918efe3306bef5213aac6447678ed0eef1260149e3250c7c9b78453601fc131856795adeb

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYp:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yb

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

      8c1f6b09b48d62ca43eba98909547454

    • SHA1

      3967abfd7c6dde46778be79a1b38cdd0bf1d5e2e

    • SHA256

      04a94334848c34555dc60568905596d4649c850ba05d39aef73db52f5e19f968

    • SHA512

      1f3c3e49ff70d7380156cf95a276acaef8c406c95b595d5ec4cb02e918efe3306bef5213aac6447678ed0eef1260149e3250c7c9b78453601fc131856795adeb

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYp:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yb

    • 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