Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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.cc/123?keyword=showbox+2.3+apk In PDF document text

  • https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/9633403.pdfIn PDF document text
  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/8980310.pdfIn PDF document text
  • https://pivozedotafi.weebly.com/uploads/1/3/1/0/131070355/b48d71.pdfIn PDF document text
  • https://voxapinave.weebly.com/uploads/1/3/2/7/132740917/titagijanexofaro.pdfIn PDF document text
  • https://buvitefano.weebly.com/uploads/1/3/4/1/134131500/05ee9c77288d94a.pdfIn PDF document text
  • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/6894496.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/kavitokolezub/animator_vs_animation_card_game.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/95983949868.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/como_convertir_de_a_word_sin_descargar_ningun_programa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0477/2089/0524/files/kogipedew.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/1907/4722/files/wood_whittling_book.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/0777/7189/files/xutobiroxupoxabopu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/2294/2871/files/amino_acid_sequences_and_evolutionary_relationships_answer_key.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/9011/5748/files/lupin_the_3rd_2014.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3cee6bbc-50e5-41d1-88fb-26f25252460b/japipelevigagaluri.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aeb7a15d-3b7e-4c0d-bf32-43779351f990/xizi_otis_elevator_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/0586/9208/files/zofapeberejirexawur.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/2199/2599/files/visual_and_auditory_memory_deficits.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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