General

  • Target

    SystemPropertiesPerformance.exe

  • Size

    2.0MB

  • Sample

    240916-2ezjhstarc

  • MD5

    fb7b9fe29bd105cde73e9aaf092d4f9c

  • SHA1

    618383a565df5c4069f87b6a67e3ec419ac95727

  • SHA256

    5783450100886a2407557c774e5261b7325e6f1ac5534570f7623d21b71428a3

  • SHA512

    23e964d10a183359e9c11c3c1b0a930a17b2cc30c4e3a3940aa43852a3dffa9e86411ac065466715c399c4e73422ac1864cd645a9d8c57c13c10a757f387a3ba

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYk:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YC

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

      fb7b9fe29bd105cde73e9aaf092d4f9c

    • SHA1

      618383a565df5c4069f87b6a67e3ec419ac95727

    • SHA256

      5783450100886a2407557c774e5261b7325e6f1ac5534570f7623d21b71428a3

    • SHA512

      23e964d10a183359e9c11c3c1b0a930a17b2cc30c4e3a3940aa43852a3dffa9e86411ac065466715c399c4e73422ac1864cd645a9d8c57c13c10a757f387a3ba

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYk:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YC

    • 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