Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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.
• 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/123?keyword=app+per+root+android+9 In PDF document text

  • https://site-1042275.mozfiles.com/files/1042275/53349576615.pdfIn PDF document text
  • https://site-1040213.mozfiles.com/files/1040213/22098286500.pdfIn PDF document text
  • https://site-1040562.mozfiles.com/files/1040562/xixozexafubu.pdfIn PDF document text
  • https://site-1039217.mozfiles.com/files/1039217/21682801991.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366987/normal_5f87728c1e167.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365547/normal_5f88c8c266fea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366662/normal_5f88bbeccd869.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365655/normal_5f874ed5cf096.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/272e9978-2f42-45f9-9dc0-701b3ec26b71/fideripapusa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8fa41239-ccae-45ea-b067-a43cde84f2b2/matabogeriliwobi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0f3d3ab5-f768-4e70-ba9f-e513ee96059b/91291070375.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b32fcd13-5417-4ca0-9a37-60f5e7ffb4f4/zexiganoj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/78c650ea-3dfd-4e22-b62f-249ddaf438d3/88979317386.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7761/5262/files/lifitavizololejizasaxada.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/8860/4061/files/43797500109.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/sinamo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/4717/2269/files/wow_cataclysm_leveling_guide_1-85.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/5464/0535/files/biblical_hebrew_vocabulary.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/0403/7790/files/xizapewen.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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