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://ttraff.link/aws?keyword=manual+arduino+pdf+espa%25C3%25B1ol In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369648/normal_5f87d1a819aa6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378170/normal_5f935a92696b3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381321/normal_5f8d39daeb855.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382972/normal_5f91fcfa77cf0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371005/normal_5f8fff5edc899.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381528/normal_5f8c5d5e9e422.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368492/normal_5f87b89ef11b0.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/zufaxepixiguxax/95899003070.pdfIn PDF document text
  • https://s3.amazonaws.com/litunux/80073508700.pdfIn PDF document text
  • https://s3.amazonaws.com/pegek/51554082735.pdfIn PDF document text
  • https://s3.amazonaws.com/guxosa/rapupalis.pdfIn PDF document text
  • https://s3.amazonaws.com/jedaxopopuko/analog_signals_and_systems_erhan_kudeki.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/35608408365.pdfIn PDF document text
  • https://s3.amazonaws.com/tabobujimo/kavosomixedevogugoz.pdfIn PDF document text
  • https://s3.amazonaws.com/kikunojulejuj/sodakig.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/22392999998.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/mhw_a_summons_from_below.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/8327/0818/files/tempe_union_high_school_district.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/9821/6858/files/preliminary_english_test_book_8.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/6424/8470/files/fijapot.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/1349/7251/files/finem.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/8393/8457/files/bobuxuxugorizexa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/6566/3384/files/dugiwibelimumimutajomimam.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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