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.club/123?keyword=first+response+pregnancy+test+instructions+faint+line In PDF document text

  • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/7328348.pdfIn PDF document text
  • https://wefolukozik.weebly.com/uploads/1/3/1/4/131406413/bikawirejopilir.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368736/normal_5f8a5186452dc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371247/normal_5f8af8573146b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368978/normal_5f89ec6b6fcd1.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/58f68691-c92b-4bf7-8eb5-da063305a17f/25159361284.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ab4e8fb0-4c81-4161-8754-b0f19e475c3a/tumova.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d796cac0-34ff-4f75-9a84-12fc3b7e3cdd/63552868951.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/02453907-ea73-43be-9594-4eeaa6c7245b/rudeniratarila.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/86c366ca-5e8e-434b-ab6a-94ea90b6d0b3/30473322169.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7047/9772/files/csun_spring_2020_transfer.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/6127/8870/files/trigonomtrie_1ere_s_exercices_corrigs.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/0841/2832/files/emotional_words_propaganda_sample.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8861/8672/files/bloons_adventure_time_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7162/6652/files/middle_ground_fallacy_meaning.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/4565/1100/files/attila_total_war_politics_guide.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/gasijoxo.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/enigma_otiliei_carte.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/gym_training_program_for_beginners.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/ultrasound_books_for_beginners.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/tuximewojabedafojivarofi.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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