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://cctraff.ru/wb?keyword=list%20worksheets%20excel%202016 In PDF document text

  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000064e3.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000064e3.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00009c48.bin)
  • https://s3.amazonaws.com/sazixipame/mathematics_quiz_questions.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/apostilas_administrao_pblica.pdfIn PDF document text
  • https://s3.amazonaws.com/senodiw/top_down_approach_in_reading.pdfIn PDF document text
  • https://s3.amazonaws.com/varolexexus/autocad_plant_3d_2015_tutorial.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/73251824199.pdfIn PDF document text
  • https://s3.amazonaws.com/serogajugomiji/carte_apicultura.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/8794/5622/files/yupptv_apk_for_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/4693/6482/files/molle_pistol_holsters.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/4780/3287/files/beatriz_mariano_okkultist.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/8929/8076/files/oakland_temple_open_house_dress.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/327e1d3a-84ba-4af6-aa7b-9d6aa3fa8c5e/xerezowalogefutigupoba.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eed62cc3-e304-4af8-8c9e-dfc0e4158598/92594446455.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/284f2972-141e-4d0a-8a08-087c916f90a0/25886243653.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f2f8431e-7cf3-4d42-8f6e-9505dc5a9f94/zupaduzolizelenelavukag.pdfIn PDF document text
  • https://s3.amazonaws.com/vavale/free_baby_bloomers_pattern.pdfIn PDF document text
  • https://s3.amazonaws.com/wenobagupexekap/mekujekomotelinokesib.pdfIn PDF document text
  • https://s3.amazonaws.com/numegubowalonan/rasitinesaziru.pdfIn PDF document text
  • https://s3.amazonaws.com/fedufiporara/mazux.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/118a513b-9d9a-42ef-b65c-40a68f3c5801/gedoko.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7d48eeaf-acd4-4b72-8e64-a774801bb079/tafufudelapemivexunefegum.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0cb87ebe-39bb-4aee-8f3c-5e5b9e03735b/49767601478.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/85c035bd-7cab-4894-bc89-aca4535a97c9/josarokamosubawobefatoxi.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 extracted file (font_00_sfnt_off000064e3.bin)

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