Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d77b5134be1c0a3…

MALICIOUS

PDF

62.9 KB Created: 2021-02-10 23:28:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: a3b73cfbf14cd6c69e251c38bfd9ac54 SHA-1: 414f0887aa77e7fc364e61733e3e814842a5b714 SHA-256: 9d77b5134be1c0a353c49913a796fd3ccb8309204a694f85e03c6f509ec80587
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many pointing to disposable domains and link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a common phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9645

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/123?utm_term=fiscal+en+ingles+que+significa PDF link annotation
    • http://youla-24.cc/nuance_converter_professional_7_seri2153n.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383921/normal_6004f104e3fb0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444644/normal_600cfb74671b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458854/normal_600d6cb291bef.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/bv6gdag/sademanamemotike.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450046/normal_5ff8b52a9c197.pdfIn PDF document text
    • http://bcpzonasegur4viabcp.com/loxekixsrooa.pdfIn PDF document text
    • https://cdn.sqhk.co/mikevoponage/4KheI95/56237824268.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403817/normal_5ff4b502a0ac0.pdfIn PDF document text
    • https://cdn.sqhk.co/natefisaka/hNv67ij/free_halloween_wallpaper_for_iphone_xr.pdfIn PDF document text
    • http://generatorsale.ru/jidivenh78bo.pdfIn PDF document text
    • http://winoraama.site/15381478901fcyek.pdfIn PDF document text
    • http://begemotiks.space/gowufe4cjfr.pdfIn PDF document text
    • https://cdn.sqhk.co/voxedifi/jif4gjA/pidezivevu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454161/normal_6021a248e2328.pdfIn PDF document text
    • http://ratagewenik.epizy.com/acker_bilk_sheet_music_clarinet.pdfIn PDF document text

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