Malicious PDF — malware analysis report

Heuristics 7

• 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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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.com/pify?keyword=possessive+pronouns+vs+adjectives+exercises+pdf In PDF document text

  • http://files.theaterdanceworkshop.org/uploads/1/3/1/4/131408062/4122345.pdfIn PDF document text
  • http://files.sheilabycraftjewellery.com/uploads/1/3/0/8/130874278/63cd552.pdfIn PDF document text
  • http://files.montanaterritorialalliance.org/uploads/1/3/1/3/131379353/kotipitivabuwom-dofunaxoguv-levujopol-sigirewafu.pdfIn PDF document text
  • http://files.esibstudentsfront.com/uploads/1/3/1/6/131636642/likelofera.pdfIn PDF document text
  • http://files.wildlifeworldwidephotographycompetition.com/uploads/1/3/1/3/131379040/d803572bb.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5819/1768/files/31889744486.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/9524/4452/files/haloalkanes_and_haloarenes_notes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/36876899673.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/6331/2533/files/rirabikurelupunovanavibon.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/9109/1875/files/71967422385.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77160317291.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/1814/9285/files/dusojixexasetifokipuvade.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/1129/2829/files/australia_rail_map.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/69943675715.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/9932/4580/files/kataromusujinune.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/geforce_installation_failed.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69865881622.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/8502/7745/files/yugioh_gba_games.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/5293/1995/files/jalemuvazo.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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