Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f7cbc40ad1e3ce0…

MALICIOUS

PDF

65.4 KB Created: 2021-02-26 01:01:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 225b0c959dd680ea9dfe1fc9cc9e688e SHA-1: 5d1c1ad8c790b6b27756f5ae9a77cc0d54c47ff1 SHA-256: 6f7cbc40ad1e3ce06176d68e14ca6e5ddf44aba8d1582ca62aff00a30a78e68f
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains heuristics indicating it is a phishing lure, specifically using a medical-related keyword to entice users. It redirects to the URL 'https://leonvi.ru/award?keyword=red+itchy+burning+bumps+on+face', which is flagged as a redirector for free-download phishing. ClamAV also detected this file as a malicious PDF. The presence of embedded URLs and the ML classifier output strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9298

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://leonvi.ru/award?keyword=red+itchy+burning+bumps+on+face PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427104/normal_60365d20354cd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453560/normal_5fee7dbd7ea6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478148/normal_5fe9f68d91a44.pdfIn PDF document text
    • http://buxewufa.iblogger.org/how_to_volunteer_for_red_cross_kenya.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/commonwealth_of_mass_nonprofit_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/boohoo_sizing_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/times_of_india_epaper.pdfIn PDF document text
    • http://lagiwafumize.rf.gd/30965227479.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/car_booking_form_html_code.pdfIn PDF document text
    • http://luxusuriva.epizy.com/arya_2_movie_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/fadulevatuxebenuxitip.pdfIn PDF document text

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