Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-01-2025 04:28

General

  • Target

    666f0c305b0a6cc558192918bc144c3119d898c33656101395140d93e9e10e69.exe

  • Size

    348KB

  • MD5

    12fd7ce0bfd78a7cb5fcbacec80688b4

  • SHA1

    cfe013c25d5d7b3fc5949058c4662cc7adf905b5

  • SHA256

    666f0c305b0a6cc558192918bc144c3119d898c33656101395140d93e9e10e69

  • SHA512

    8de2d7e52d15fe484269c7c60d69311be9043a3ace582ad04e641217f916e0ed45d35db6d55ebe72b961cc786efdd081c1356150ed65d5c5d1b30d50e2370cb5

  • SSDEEP

    6144:8XNHXf500Mt9COSi6t4pbchRGJ1vsS9AZ2:yd504MbkSiZ2

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Server

C2

qrar.duckdns.org:54780

Mutex

QSR_MUTEX_GLogoSFnthgdrtuygvfWs

Attributes
  • encryption_key

    J6ctgOaea8vKxX5L3sUp

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Google Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\666f0c305b0a6cc558192918bc144c3119d898c33656101395140d93e9e10e69.exe
    "C:\Users\Admin\AppData\Local\Temp\666f0c305b0a6cc558192918bc144c3119d898c33656101395140d93e9e10e69.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:5044

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/5044-0-0x00000000753FE000-0x00000000753FF000-memory.dmp

    Filesize

    4KB

  • memory/5044-1-0x0000000000CC0000-0x0000000000D1E000-memory.dmp

    Filesize

    376KB

  • memory/5044-2-0x0000000005D90000-0x0000000006334000-memory.dmp

    Filesize

    5.6MB

  • memory/5044-3-0x00000000057E0000-0x0000000005872000-memory.dmp

    Filesize

    584KB

  • memory/5044-4-0x00000000753F0000-0x0000000075BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/5044-5-0x0000000005710000-0x0000000005776000-memory.dmp

    Filesize

    408KB

  • memory/5044-6-0x0000000006460000-0x0000000006472000-memory.dmp

    Filesize

    72KB

  • memory/5044-7-0x00000000069A0000-0x00000000069DC000-memory.dmp

    Filesize

    240KB

  • memory/5044-9-0x0000000006CF0000-0x0000000006CFA000-memory.dmp

    Filesize

    40KB

  • memory/5044-10-0x00000000753FE000-0x00000000753FF000-memory.dmp

    Filesize

    4KB

  • memory/5044-11-0x00000000753F0000-0x0000000075BA0000-memory.dmp

    Filesize

    7.7MB