Malicious PDF — malware analysis report

Static analysis result for SHA-256 7482c2c434200e47…

MALICIOUS

PDF

50.6 KB Created: 2021-01-14 11:51:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: bb2ff18e5821442fd0a9038cbb045d00 SHA-1: eb7c4035c9875fb678b14a74d74c1f37cef05f6c SHA-256: 7482c2c434200e473515b145f3a5462e664b24b5b2a529011298eef3c7194aa3
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file functions as a link farm, directing users to numerous external PDF files hosted on various domains. The primary lure appears to be a 'blank research paper outline template pdf', which redirects to an SEO spam site. The presence of multiple external links and the ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7011

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafffi.ru/aws?utm_term=blank+research+paper+outline+template+pdf PDF link annotation
    • https://jusodizepo.weebly.com/uploads/1/3/1/0/131070216/42c1fe.pdfIn PDF document text
    • https://cdn.sqhk.co/kimejijomaki/uiaifhi/abc_song_jackson_5_tempo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377114/normal_5fc1e4a6b82ca.pdfIn PDF document text
    • https://wetejitaxazis.weebly.com/uploads/1/3/4/3/134306742/cd0475c5f3b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417645/normal_5fade16d8a592.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379970/normal_5fc97bc7b3770.pdfIn PDF document text
    • https://mulepulevuva.weebly.com/uploads/1/3/4/3/134366291/fafotemofu-rumatezo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425737/normal_5fa7d5e6edb9f.pdfIn PDF document text
    • https://cdn.sqhk.co/fabavukunatu/dDyx7he/free_sample_business_plan_template_word.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443337/normal_5fb028cb2080b.pdfIn PDF document text
    • https://cdn.sqhk.co/losokifape/5uieieo/kivimibavuvesiranok.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446400/normal_5febd3aeb74a1.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/tanejipigikaxapumaz.pdfIn PDF document text

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