General

  • Target

    SystemPropertiesPerformance.exe

  • Size

    2.0MB

  • Sample

    240917-em2bratdre

  • MD5

    f4d7ad283b2db80eb3c4ffbf159e6ead

  • SHA1

    a801b87f3e2d01a08a8953fddc9cf0964843dbd5

  • SHA256

    072f6a8def0bc18d8c4fa08119f6d2578476276e9b9b181cbf61301dcc84a09c

  • SHA512

    01f2f23983d0985d27ec1f6322529cfdd9bc81789af3c9cb8c79b3462f5c65bb9fc4c525c73a39b232956a68736989c0fc32b7f4cb4f7563dab456db92d6cde2

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYf:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y9

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

      f4d7ad283b2db80eb3c4ffbf159e6ead

    • SHA1

      a801b87f3e2d01a08a8953fddc9cf0964843dbd5

    • SHA256

      072f6a8def0bc18d8c4fa08119f6d2578476276e9b9b181cbf61301dcc84a09c

    • SHA512

      01f2f23983d0985d27ec1f6322529cfdd9bc81789af3c9cb8c79b3462f5c65bb9fc4c525c73a39b232956a68736989c0fc32b7f4cb4f7563dab456db92d6cde2

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYf:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y9

    • 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