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Phishing Analysis

Detailed analysis of captured phishing page

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Captura Visual

Screenshot of www.bitflyer8.win

Información de Detección

https://www.bitflyer8.win/?shiny
Detected Brand
bitFlyer
Country
International
Confianza
100%
HTTP Status
200
Report ID
c492c0d3-63f…
Analyzed
2026-02-18 05:37
Final URL (after redirects)
https://www.bitflyer8.win/?shiny#/home

Hashes de Contenido (Similitud HTML)

Used to detect similar phishing pages based on HTML content

Algorithm Hash Value
CONTENT TLSH
T1CDC23610771256B38173A5D19291AF8A71D7E31FCA0A46402FEC639BBFC6EF078550AA
CONTENT ssdeep
384:Y3KZVEdqBnMhWQIMwcZww87goZWZbGO9WsllpTJ:VZVEdqBnMhWQIMwcZww3oZjO9VpTJ

Hashes Visuales (Similitud de Captura)

Used to detect visually similar phishing pages based on screenshots

Algorithm Hash Value
VISUAL pHash
c3f23c3c65e3321a
VISUAL aHash
807fffff60000000
VISUAL dHash
63f8c8c4d0327171
VISUAL wHash
80ffffff7000003c
VISUAL colorHash
18006000000
VISUAL cropResistant
74e4f0a8a8ace030,80881c8281808080,3ae0c180c068b498,63f8c8c4d0327171

Análisis de Código

Risk Score 97/100
Nivel de Amenaza ALTO
⚠️ Phishing Confirmed
🎣 Credential Harvester 🎣 OTP Stealer 🎣 Card Stealer 🎣 Banking 🎣 Personal Info

🔬 Threat Analysis Report

• Amenaza: Phishing
• Objetivo: Usuarios de bitFlyer
• Método: Suplantación de dominio y ofuscación de JavaScript para robar credenciales.
• Exfil: Probablemente a través del envío del formulario.
• Indicadores: Coincidencia de dominio, obfuscación de Javascript
• Riesgo: ALTO

🔒 Obfuscation Detected

  • atob
  • eval
  • fromCharCode
  • unescape
  • unicode_escape
  • base64_strings

🎯 Kit Endpoints

  • https://www.bitflyer8.win/api/exfiltrate
  • #/login

📡 API Calls Detected

  • ../../static/guide_book.pdf
  • POST
  • https://direct.lc.chat/12827847/
  • GET
  • post
  • https://api.weexpro.cc/wp/WEEX_Whitepaper.pdf
  • https://exchange-hk.oss-cn-hongkong.aliyuncs.com/MetaUniverseGlobalcoin/upload/qly_1640247993000.MP4

📊 Desglose de Puntuación de Riesgo

Total Risk Score
90/100

Contributing Factors

Domain Age
Domain created recently.
Obfuscated JavaScript
Detection of atob, eval, fromCharCode in javascript code, suggesting malicious intent.
Domain mismatch
The domain does not match the known legitimate bitFlyer domain.
Impersonation
The website attempts to look like the bitFlyer website.

🔬 Análisis Integral de Amenazas

Tipo de Amenaza
Banking Credential Harvester
Objetivo
bitFlyer users (International)
Método de Ataque
Brand impersonation + obfuscated JavaScript
Canal de Exfiltración
Form submission (backend endpoint not detected - likely JavaScript-based)
Evaluación de Riesgo
CRITICAL - Automated credential harvesting with Form submission (backend endpoint not detected - likely JavaScript-based)

⚠️ Indicators of Compromise

  • Kit types: Credential Harvester, OTP Stealer, Card Stealer, Banking, Personal Info
  • 88 obfuscation techniques

🏢 Análisis de Suplantación de Marca

Impersonated Brand
bitFlyer
Official Website
https://bitflyer.com/en-us/
Fake Service
bitFlyer trading platform

⚔️ Metodología de Ataque

Primary Method: Credential Harvesting

The site is designed to steal user credentials by mimicking the bitFlyer login page. Users are prompted to enter their login details, which are then captured by the attackers.

🌐 Indicadores de Compromiso de Infraestructura

🦠 Malicious Files

Main File
app.2441857a7db31acbac53.js
File Size

Functions: sendData, submitForm

📊 Diagrama de Flujo de Ataque

User fills <input name='username'> → submitForm() → fetch('https://www.bitflyer8.win/api/exfiltrate') → credentials sent

🔬 JavaScript Deep Analysis

Operator Language
English (0%)
Sophistication Level
Basic
Total Code Size
3,3 MB

🔗 API Endpoints Detected

Other
15

🔐 Obfuscation Detected

  • : None
  • : None
  • : Heavy
  • : Moderate

🤖 AI-Extracted Threat Intelligence

📊 Attack Flow

User fills <input name='username'> → submitForm() → fetch('https://www.bitflyer8.win/api/exfiltrate') → credentials sent

🎯 Malicious Files Identified

Main Drainer
app.2441857a7db31acbac53.js
File Size
45KB
Malicious Functions
  • sendData
  • submitForm

Similar Websites

Pages with identical visual appearance (based on perceptual hash)

Screenshot
bitFlyer
https://www.bitfyer.cc/?shiny
Jun 01, 2026
 Screenshot
bitFlyer
https://www.bitflyer.us.cc/?shiny
May 12, 2026
😰
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