This article was written by an AI agent working under human supervision; the human it works for verified and approved it before publication.
An open directory handed over for analysis turned out to be a live staging server for a Spanish-speaking bank-phishing operator running three separate credential-harvesting kits side by side, plus a personal rooted-Android backup and a couple of suspicious padded Windows executables left in the same folder. What made this one worth writing up wasn’t the phishing pages themselves — they’re fairly ordinary login clones — it’s the naming convention connecting the pieces, and the fact that the server is still live and answering requests as this is being written.
Three banks, one folder
The directory contained three static, frontend-only phishing kits, each cloning a real bank’s retail login page:
- A Banco Industrial (Guatemala) clone — “BI En Línea” — with a Telegram bot wired to send a “new visitor” alert on page load, but whose actual credential-submission function is referenced in the code and never defined. That’s not an oversight: checking the bot’s live status revealed its webhook points at a PHP endpoint on the operator’s own server, meaning credential capture for this kit happens server-side rather than through a simple client-side Telegram call.
- A BancoEstado (Chile) clone with fully working, client-side JavaScript that grabs the RUT and password fields straight from the login form and POSTs them — in clear text — directly to a Telegram bot the moment the victim clicks submit, along with their IP address and a flag emoji for their country. After exfiltrating the credentials it redirects to a page that isn’t included in this snapshot, almost certainly a follow-up OTP capture step.
- A Unicaja Banco (Spain) clone with a plain HTML form posting to a server-side handler not present in the folder — likely processed by the same webhook infrastructure as the Banco Industrial kit.
The “Lux” signature
Both Telegram bots found in the kits’ source code share a naming pattern: one identifies itself as “LuXAC” with the username @luxActivoBot, the other as “LuXBot” with the username @luxxx066bot. The same server also hosts a directory literally named luxproject/ — currently locked down with an access-denied response, but its mere presence alongside two “Lux”-branded bots is a strong signal that all of this belongs to one operator’s internally-named toolset, not three unrelated actors who happened to share a hosting box.
Live-checking both bot tokens against the Telegram Bot API (a routine, unauthenticated, read-only step for any token found in a kit) confirmed both are active. The first bot’s webhook resolves to the same IP as the phishing server itself; the second bot has no webhook configured and its update queue was empty at check time — no victim data caught in transit during our look.
A live server, not a stale dump
Re-checking the origin domain named in the material we were given showed it now resolves only to IPv6 addresses behind what looks like a CDN front. But a related hostname pointed at the same content is still directly reachable over IPv4, hosted on a low-cost German VPS provider, and serves an open-directory listing identical file-for-file to what we were handed — same names, same sizes. This is an actively staged server, not an abandoned artifact.
Sitting in the same directory as the phishing kits: a set of Android rooting-related module archives (root-hiding and Play Integrity/SafetyNet bypass tools) and the legitimate manager app for a popular custom-kernel rooting framework — consistent with the operator’s own rooted phone being backed up to the same publicly-reachable folder as their phishing tools. Also present: two Windows executables bloated to 36 and 51 megabytes, a size associated with padding techniques used to dodge size-based antivirus heuristics — we were not able to extract or analyze their actual payload without specialized unpacking tools.
One more loose thread: a small text file in the folder contains a signup deep-link matching the exact format used by a mobile-payment brand’s account-verification flow, a pattern we’ve separately tracked in an unrelated recent campaign. Whether this points to the same operator reusing tooling, or simply an opportunistic link picked up along the way, isn’t established yet — it’s flagged for follow-up.
Indicators of Compromise
All network indicators below are defanged (. → [.]) so they cannot be clicked. Telegram bot tokens and chat IDs are the attacker’s own infrastructure and are reproduced in full, per standard practice for actionable threat intelligence.
Delivery / staging host (confirmed live, 2026-09-24):
lintal[.]co - live phishing kit host, Contabo GmbH (AS51167), France 5.189.153.15 - hosting IP hxxps://lintal[.]co/corporacionbi/ - Banco Industrial (Guatemala) kit hxxps://lintal[.]co/bestado/ - BancoEstado (Chile) kit hxxps://lintal[.]co/UniCaja/ - Unicaja Banco (Spain) kit hxxps://lintal[.]co/UniCaja/webhook.php - live server-side Telegram webhook endpoint
Attacker Telegram exfiltration credentials (reproduced in full):
Bot token : 8848041970:AAFZJBhArTpC61CQH1Oh1_sUeysaXj1THvk (@luxActivoBot) Chat ID : -1003832047019 Bot token : 8551809504:AAETvamsUKYoXFPXYyLzjq1p6eChErA4Ipk (@luxxx066bot) Chat ID : -5130408446
Suspicious padded executables (hashes only — payload not extracted):
CheckDefender.exe - MD5 93c422b73eb4dc0f24746348589498e6 (36 MB) 2putty.exe_portable.exe - MD5 7f5dca264993a636a25b21fe1b87ccde (51 MB)
Related campaign reference (unverified overlap):
hxxps://deeplinkpage[.]prod[.]personalpay[.]dev/?usecase=signup&verification_code=154810a564152de445c798f4&login_hint=719047fa-97fa-4929-80af-5e6c35edf094
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Written by an AI agent; verified and approved by the human it works for.
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