# PhishDestroy threat dossier — en-trezzo.teachable.com
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Fetched:   2026-04-22 08:32:32 UTC
Canonical: https://phishdestroy.io/domain/en-trezzo.teachable.com/

## VERDICT
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TAKEN DOWN (neutralised)
Composite threat score: 67/100 (PhishDestroy scoring — see methodology below)

## DETECTION EVIDENCE
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VirusTotal:      1/93 security vendors flagged this domain
  Flagging vendors: Webroot
Public blocklists: listed on 1 independent blocklist

## INFRASTRUCTURE
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IP address:      104.17.82.54 (US, San Francisco)
ASN:             ASAS13335 CLOUDFLARENET, US
Hosting org:     AS13335 Cloudflare, Inc.
Registrar:       Amazon Registrar, Inc.
Nameservers:     ["ian.ns.cloudflare.com", "nina.ns.cloudflare.com"]
Registered:      2026-02-21
Page title:      404 Error - Teachable
HTTP response:   404

## TLS CERTIFICATE
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Issuer:     Google Trust Services / WR3
Expires:    2026-05-05
Status:     INVALID chain
Fingerprint: 8c115f69ef882fe17709cf2ad18188454f909fff3db965d349287fdf2ae96853
Subject Alternative Names (related infrastructure — often same operator):
  - teachable.com

## ABUSE-REPORT HISTORY (evidence of registrar non-response)
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Status: CLOSED — no report required.
This domain was neutralised before the abuse-report cycle could be dispatched — either
the hosting provider / registrar suspended it on their own, the DNS went dead, or the
operator abandoned the infrastructure. PhishDestroy keeps the evidence bundle on file
for audit but no formal notice was sent.

## TIMELINE
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Domain registered: 2026-02-21 (per WHOIS / CT — may reflect a renewal or transfer date, not first-ever registration)
First detected:    2026-02-26 23:23:24 UTC (by PhishDestroy tracker)
Last verified:     2026-04-13 04:52:09 UTC
Neutralised:       2026-03-02 20:20:14 UTC
Current status:    taken down (registrar suspended or DNS dead)

## EXTERNAL CORROBORATION (third-party evidence)
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URLScan.io:       https://urlscan.io/result/0198191d-d8db-775e-a9bf-c90742e0738f/
Wayback Machine:  https://web.archive.org/web/*/en-trezzo.teachable.com
crt.sh CT logs:   https://crt.sh/?q=%25.en-trezzo.teachable.com
Google transparency: https://transparencyreport.google.com/safe-browsing/search?url=en-trezzo.teachable.com
AlienVault OTX:   https://otx.alienvault.com/indicator/domain/en-trezzo.teachable.com
URLhaus:          https://urlhaus.abuse.ch/host/en-trezzo.teachable.com/

## ANALYST NARRATIVE
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[Generated: 2026-03-03 16:58:13 UTC — narrative may predate facts above. Treat fields in TIMELINE / DETECTION EVIDENCE / INFRASTRUCTURE as authoritative if they differ from the prose below.]

PhishDestroy identifies en-trezzo.teachable.com as a low-risk generic phishing domain. It was designed to deceive users by mimicking legitimate services to capture sensitive information.

The domain was registered on February 21, 2026, through a now-defunct registrar. It was flagged by one security vendor and listed on a single blocklist, indicating limited but notable suspicious activity.

Currently, en-trezzo.teachable.com is offline and no longer accessible. Users are advised to remain vigilant, avoid interacting with similar domains, and report any suspicious activity.

## EVIDENCE HASHES
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Favicon MD5:       a97507d6d344de049ed384b94a0cc7c1
TLS cert SHA-256:      8c115f69ef882fe17709cf2ad18188454f909fff3db965d349287fdf2ae96853

## SCORING METHODOLOGY
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Composite score is NOT derived from VirusTotal alone. PhishDestroy aggregates:
  - VirusTotal positive ratio
  - Public blocklist consensus (MetaMask, ScamSniffer, OpenPhish, PhishTank, URLhaus,
    CryptoFirewall, SEAL, Polkadot, Enkrypt, Phishunt, DiscordPhishing, PhishingDB)
  - Cloaking detection (HTTP 666 or rendering delta between bot and real visitor)
  - DNS-filter consensus (Quad9, CleanBrowsing, NextDNS, AdGuard, Cloudflare, etc.)
  - AlienVault OTX pulses + Cloudflare Radar + Google Safe Browsing
  - URLScan / URLQuery verdicts
  - Brand-impersonation heuristics (DOM analysis of forms, logos, wording)
  - Known phishing-kit fingerprinting (favicon hash, JS obfuscation signatures)
  - Wallet-drainer family classification (Angel, MS, Rainbow, Pink, Inferno, ...)
  - Free-TLS vs paid-cert ratio (throwaway infrastructure signal)
  - Registrar/hosting abuse history (this registrar's track record)
  - Human researcher sign-off (volunteer takedown team)

A domain present in our database is ALREADY flagged. A low VT count by itself does
NOT mean the domain is safe — new scam domains routinely show 0/95 VT for their
first 7–30 days while actively draining wallets. Always cross-reference the composite
score and the individual indicators above, not just VT.

## CORRECTIONS / APPEALS
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Full HTML report:  https://phishdestroy.io/domain/en-trezzo.teachable.com/
JSON API:          https://api.destroy.tools/v1/check?domain=en-trezzo.teachable.com
Appeal a flag:     https://phishdestroy.io/appeals/  (responded to within 48 hours, FP rate <0.01%)
Submit a report:   https://t.me/PhishDestroy_bot

About PhishDestroy: volunteer-driven open-source threat-intelligence platform.
Tracked: 131,000+ phishing domains. Confirmed takedowns: 91,000+. Site: https://phishdestroy.io