Malicious PDF — malware analysis report

Heuristics 4

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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://ggtraff.ru/wb?keyword=two%20digit%20addition%20with%20regrouping%20pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4374359/normal_5f8afbbc5cc8b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368760/normal_5f8917d792fea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383340/normal_5f8ee25b4ef2d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366343/normal_5f920c72b3dbd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385020/normal_5f8e0fdd84070.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381976/normal_5f902e501d4ff.pdfIn PDF document text
  • https://vuwejugo.weebly.com/uploads/1/3/4/3/134309576/3267af18c.pdfIn PDF document text
  • https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/munaziruzaxuw-wowomulurodi.pdfIn PDF document text
  • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/nibexisab_sabesoxe.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/4457/7185/files/kiosk_app_android_free.pdfIn PDF document text
  • https://s3.amazonaws.com/bisute/sofudem.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/zitexoma.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/benakaluzidixosalameja.pdfIn PDF document text
  • https://s3.amazonaws.com/forupokisip/effects_of_globalization_on_developing_countries.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/254cb1ec-8570-46fd-ba27-c1487bdc2bd0/50371004403.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5a19780c-01c3-4009-ae18-096701b978d3/31707146523.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d617492d-0e26-46f6-8837-706119dc5d7a/mission_pere_noel_streaming.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e254037d-cf5f-4b49-8cf6-fc62b6429c1d/kuvuxeziwabemixu.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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