Phishing Analysis: BCR (Banco de Costa Rica)

Visual Capture

Detection Info

https://bcrsline.vercel.app/

Detected Brand

BCR (Banco de Costa Rica)

Country

Unknown

Confidence

100%

HTTP Status

200

Report ID

e642c7cc-9ef…

Analyzed

2026-04-07 22:47

Content Hashes (HTML Similarity)

Used to detect similar phishing pages based on HTML content

Algorithm	Hash Value
CONTENT TLSH	T1C341046468C99D77E143A0E4C793BF1A32C2C245D79B090A93F997EA1FC7D25CD13190
CONTENT ssdeep	48:glRIEP5PXtJmCWSUk+HFgT4lCb8sMhBvlr:cvtPWLus7sMhpF

Visual Hashes (Screenshot Similarity)

Used to detect visually similar phishing pages based on screenshots

Algorithm	Hash Value
VISUAL pHash	da8561ba4af9b4c2
VISUAL aHash	fefefe9c9cc4c0c0
VISUAL dHash	b4642c2829290908
VISUAL wHash	febefe8c9c84c080
VISUAL colorHash	07601000040
VISUAL cropResistant	b4642c2829290909,cba76c9830e0c0a0,7464282929290908,844ba89a9aa4c304,f9dc7c7e5f494326

Code Analysis

Risk Score 87/100

Threat Level ALTO

⚠️ Phishing Confirmed

🎣 Credential Harvester

Telegram Exfiltration 🔥 Firebase Backend

🔒 Obfuscation Detected

atob
fromCharCode
unescape
base64_strings

🔑 Telegram Bot Tokens (1)

6935178892:AAEW...-ywFnwIw

☁️ Cloud Backend

Firebase: basedtos-84767.firebaseapp.com

📊 Risk Score Breakdown

Total Risk Score

87/100

Contributing Factors

Active Phishing Kit

Detected kit types: Credential Harvester

Credential Harvesting

Credential harvesting detected with 1 form(s) capturing sensitive data

Telegram Exfiltration

Real-time data exfiltration via Telegram (1 bot token(s) exposed in client-side code)

Code Obfuscation

JavaScript code obfuscated using 17 technique(s) to evade detection

🔬 Comprehensive Threat Analysis

Threat Type

Credential Harvesting Kit

Target

BCR (Banco de Costa Rica) users

Attack Method

credential harvesting forms + obfuscated JavaScript

Exfiltration Channel

Telegram Bot (6935178892:AAEWR-b6X...) + Firebase Database

Risk Assessment

CRITICAL - Automated credential harvesting with Telegram Bot (6935178892:AAEWR-b6X...) + Firebase Database

⚠️ Indicators of Compromise

1 Telegram bot token(s)
Kit types: Credential Harvester
17 obfuscation techniques

🏢 Brand Impersonation Analysis

Impersonated Brand

BCR (Banco de Costa Rica)

Official Website

N/A

Fake Service

Credential harvesting service

⚔️ Attack Methodology

Primary Method: Credential Harvesting

Victim enters username and password into fake login form. Credentials are captured via JavaScript and exfiltrated to attacker's server in real-time.

Secondary Method: JavaScript Obfuscation

Malicious code is obfuscated using 17 techniques to evade detection by security scanners and make reverse engineering more difficult.

Target Blockchain

Multiple blockchains

Whitelist Bypass

YES

Drainer supports multiple blockchain networks and checks for high-value tokens on each chain before executing drain operations.

📡 Telegram Command & Control Infrastructure

Bot Token (Masked)

6935178892:AAEW...-ywFnwIw

Bot ID

6935178892

Group/Chat ID

Unknown

Operator Language

Unknown

💬 Message Templates (3)

ID	Portuguese	English	Trigger

🌐 Infrastructure Indicators of Compromise

Domain Information

Domain

bcrsline.vercel.app

Registered

Unknown

Registrar

Unknown

Status

Hosting platform (subdomain)

Hosting Information

Provider

Unknown

ASN

🤖 AI-Extracted Threat Intelligence

Similar Websites

Pages with identical visual appearance (based on perceptual hash)

Banco de Costa Rica (BCR)

http://www.bcrsline.vercel.app/

Apr 07, 2026

Scan History for bcrsline.vercel.app

Found 1 other scan for this domain

http://www.bcrsline.vercel.app/ Banco de Costa Rica (BCR) Apr 07, 2026 22:47