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://baarspo.ru/award?keyword=the+pilgrim%2527s+progress+summary+in+hindi PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4450355/normal_5fe76921298f1.pdfIn PDF document text
  • https://wojamoze.weebly.com/uploads/1/3/4/4/134479738/68b3400f7.pdfIn PDF document text
  • https://cdn.sqhk.co/fitamorigob/j6jbin9/rumble_strips_road_sign.pdfIn PDF document text
  • https://zuwukozoxuwiged.weebly.com/uploads/1/3/4/7/134713444/rozunufenotivowuru.pdfIn PDF document text
  • https://lafadulow.weebly.com/uploads/1/3/4/5/134591129/bedba4184ba75f.pdfIn PDF document text
  • https://vutuwibomakupir.weebly.com/uploads/1/3/2/7/132740747/govojofa_rosad.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4503874/normal_5ff2c412ae8ef.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4475406/normal_600862c525ab2.pdfIn PDF document text
  • http://jujibej.iblogger.org/google_analytics_beginners_exam_answers.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/mivokozibu/who_is_the_most_important_character_in_a_midsummer_nights_dream.pdfIn PDF document text
  • https://s3.amazonaws.com/dudurat/36595348024.pdfIn PDF document text
  • https://s3.amazonaws.com/telasebisu/army_dress_uniform_costume.pdfIn PDF document text
  • https://s3.amazonaws.com/geradi/delonibivakevubog.pdfIn PDF document text
  • https://s3.amazonaws.com/zasepo/julerabulogiret.pdfIn PDF document text
  • https://s3.amazonaws.com/gozilum/wink_android_4pda.pdfIn PDF document text
  • https://s3.amazonaws.com/dejazuvorira/california_king_size_bed_sheets_india.pdfIn PDF document text
  • http://vusegax.rf.gd/ielts_fever_general_reading_test_5_answers.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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