General

  • Target

    b71b3534b0a78b04ca486d30825aa840d8116fe1.bin

  • Size

    2.0MB

  • Sample

    240917-p1k7sstfjm

  • MD5

    857c40553dce29df538ccadb3a3fd93a

  • SHA1

    b71b3534b0a78b04ca486d30825aa840d8116fe1

  • SHA256

    9e22b476c2dd9c5f2bc503dcb4fa1efcfe38c6758005297835fa8413c5855ea0

  • SHA512

    dfb4b85890131260b7f60e15a433674e657bffdb8a4da312c790988ab67a549b673da62cf3952c0c99ac3355e43bdc9c6d0986bba05e8cefc0129615385d6f5f

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYs:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YG

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

      b71b3534b0a78b04ca486d30825aa840d8116fe1.bin

    • Size

      2.0MB

    • MD5

      857c40553dce29df538ccadb3a3fd93a

    • SHA1

      b71b3534b0a78b04ca486d30825aa840d8116fe1

    • SHA256

      9e22b476c2dd9c5f2bc503dcb4fa1efcfe38c6758005297835fa8413c5855ea0

    • SHA512

      dfb4b85890131260b7f60e15a433674e657bffdb8a4da312c790988ab67a549b673da62cf3952c0c99ac3355e43bdc9c6d0986bba05e8cefc0129615385d6f5f

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYs:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YG

    • 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