Security Scan Report: oass.co.jp

Submitted: Oct 27, 2025, 1:28:11 AMCompleted: Oct 27, 2025, 1:30:28 AMpubliccompleted
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Summary

This website contacted 6 IPs in 2 countries across 5 domains to perform 20 HTTP transactions. The main domain is oass.co.jp.

Submitted URL: https://oass.co.jp/webmail/auth.sso.biglobe/login.html

AI Security Verdict

Confirmed Scam

Confidence: 92%

9
Risk Score

Phishing site impersonating BIGLOBE to steal credentials

Risk Factors
Credential harvesting form with password input on untrusted domain
Brand impersonation of BIGLOBE on a non‑official domain
Google Safe Browsing social engineering detection
Domain not listed in Cisco Umbrella top 1M (unranked)
Domain age unknown, likely newly registered
Domain age information unavailable

Details

Page Title

BIGLOBEメール|Webメール

Scan Type

public

Language

🇵🇹

Portuguese

(50% confidence)

Category

healthcare medical

(64%)

Domain Information

Within the Japanese country-code top-level domain (.co.jp), 'oass.co.jp' is registered and has no subdomain. The registrable portion 'oass' spans 4 characters containing 2 vowels alongside 2 consonants. Splitting it apart reveals 2 words: oas, s. The median word length lands at two characters. 'ocas' most strongly signals Czech. Usage also turns up in Slovak and Croatian contexts.

Screenshot

Security scan screenshot of https://oass.co.jp/webmail/auth.sso.biglobe/login.html

Page Load Overview

129.72s
Total Load Time
20
HTTP Requests
5
Domains
13 KB
Total Size

Language Analysis

Primary Language

🇵🇹Portuguese
Code: pt
Confidence:50%
Script:Latin
Direction:ltr

Detection Details

Language Code:pt
Detection Confidence:50%
Script Type:Latin
Text Length:1,255 chars
Detector Agreement:50%

All Detected Languages

🇵🇹pt(100%)🇨🇳zh(0%)

Website Classification

Primary Category

healthcare medical64% confidence
Type: spa
Method: ml+structural

All Detected Categories

healthcare medical
64%
adult content
63%
technology software
58%
news media journalism
57%
documentation technical
55%

Detected Features

Login Form

Domain & IP Information

RequestsIP AddressLocationAS Autonomous System
5142.250.185.136United States
AS15169GOOGLE
352.192.172.154Tokyo, Tokyo, Japan
AS16509AMAZON-02
354.150.56.247Tokyo, Tokyo, Japan
AS16509AMAZON-02
318.177.165.112Tokyo, Tokyo, Japan
AS16509AMAZON-02
3157.7.107.29Japan
AS7506GMO Internet Group, Inc.
33.174.46.124United States
AS16509AMAZON-02
206--

Detected Technologies4

Content Similarity HashesFor malware variant detection

Image Hashes

Perceptual Hashes

Average Hash:N/A
Perceptual Hash:N/A
Difference Hash:N/A
Wavelet Hash:N/A
Color Hash:N/A

Other Hashes

Crop Resistant:N/A

Scan History

Scan history not available

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