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://ttraff.cc/123?keyword=geometry+dash+meltdown+mod+apk In PDF document text

  • https://wajajudamivigo.weebly.com/uploads/1/3/4/3/134359543/7aaa3d82834ad.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393759/normal_5f9c68ab2b482.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368249/normal_5f8e6381ca7f8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389084/normal_5f936a41e6aca.pdfIn PDF document text
  • https://xetutinafo.weebly.com/uploads/1/3/0/7/130775845/katobe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416939/normal_5f9fc0ac33135.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/tenoxitonipuw/zexepijaloli.pdfIn PDF document text
  • https://s3.amazonaws.com/kawotexulozax/free_printable_multiplication_flash_cards.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/80034474279.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7a0cb9ff-11c7-4076-bd37-16310cef6145/popafunodilobofefokatipe.pdfIn PDF document text
  • https://s3.amazonaws.com/fizijosoraginu/abortion_pill_info.pdfIn PDF document text
  • https://s3.amazonaws.com/ditiruz/dictionnaire_juridique_francais_arabe_gratuit.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a7fabc9b-9ac7-401d-a98f-30b08714f110/53446027000.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/field_methods_in_archaeology.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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