Malicious PDF — malware analysis report

Heuristics 5

• 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
• 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://maypoin.ru/123?utm_term=ios236+v6+installer+zip PDF link annotation

  • http://tiktokhd.design/voice_recorder_free_windows_10wts4p.pdfIn PDF document text
  • https://limejanokevipa.weebly.com/uploads/1/3/0/7/130739330/3742448.pdfIn PDF document text
  • https://mafupalitofix.weebly.com/uploads/1/3/4/0/134042392/2977117.pdfIn PDF document text
  • http://ighelperscenter.com/los_compas_y_el_diamantito_legendario_descargar_gratisj8jeg.pdfIn PDF document text
  • https://wagimudo.weebly.com/uploads/1/3/4/4/134475497/sufakin.pdfIn PDF document text
  • http://creditactive.info/mezolumezijm3uns.pdfIn PDF document text
  • http://scriptbook.xyz/prevencion_primaria_del_cancer_de_mamalkln8.pdfIn PDF document text
  • https://dataremidesop.weebly.com/uploads/1/3/4/6/134697992/a01a69e9c5b.pdfIn PDF document text
  • https://vetasokimatajed.weebly.com/uploads/1/3/5/2/135296406/ditelesur.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4455380/normal_5fcb9ed5c8b4f.pdfIn PDF document text
  • https://badakawage.weebly.com/uploads/1/3/0/9/130969543/wenemumabawabe_xezapavuwetoz_wafijad_vupobatimadukud.pdfIn PDF document text
  • https://dapalirodo.weebly.com/uploads/1/3/1/4/131483520/rilerizezon-guponim-lurinari.pdfIn PDF document text
  • https://tusezewepoxir.weebly.com/uploads/1/3/4/3/134339989/bef45.pdfIn PDF document text
  • https://kexulisil.weebly.com/uploads/1/3/4/7/134762119/vevukarejupufo.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/vuforewebub/app_store_mobile_limit.pdfIn PDF document text
  • https://s3.amazonaws.com/pokorevalaxex/66977815088.pdfIn PDF document text
  • https://s3.amazonaws.com/fonazuzixagizir/defects_in_brick_masonry.pdfIn PDF document text
  • https://s3.amazonaws.com/godoremitiwuja/27045622312.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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