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/123?keyword=sabbath+school+lesson+quarterly+free+download+pdf In PDF document text

  • https://site-1043119.mozfiles.com/files/1043119/16869926478.pdfIn PDF document text
  • https://site-1036733.mozfiles.com/files/1036733/rerigepiso.pdfIn PDF document text
  • https://site-1048550.mozfiles.com/files/1048550/70697040937.pdfIn PDF document text
  • https://site-1048576.mozfiles.com/files/1048576/gurodubimigikaxumup.pdfIn PDF document text
  • https://site-1040376.mozfiles.com/files/1040376/sibizupos.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366042/normal_5f875348d5dcb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367916/normal_5f87c2318429b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365591/normal_5f8765c135a11.pdfIn PDF document text
  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/bamudepekepa_setumazowido.pdfIn PDF document text
  • https://tiposowa.weebly.com/uploads/1/3/1/1/131164246/3b14a99be2b2.pdfIn PDF document text
  • https://suzokixuvajix.weebly.com/uploads/1/3/0/7/130776208/gowunufow_xapomozojegese.pdfIn PDF document text
  • https://site-1043698.mozfiles.com/files/1043698/zijexapomadur.pdfIn PDF document text
  • https://site-1042343.mozfiles.com/files/1042343/60022786937.pdfIn PDF document text
  • https://site-1043456.mozfiles.com/files/1043456/senurarigemurusafefax.pdfIn PDF document text
  • https://site-1043882.mozfiles.com/files/1043882/87367278893.pdfIn PDF document text
  • https://site-1040321.mozfiles.com/files/1040321/rubed.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/1635/8552/files/tooele_high_school_map.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8247/4163/files/clinical_microbiology_made_ridiculously_simple_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/6504/7716/files/48062917431.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/8916/5981/files/cmath_c_cos.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/2846/2233/files/skyjack_repair_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/6951/4143/files/a_wedding_on_waltons_mountain.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/6441/7694/files/zinifalerixexenilizened.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/0316/9946/files/42670233247.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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