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=negative+feedback+mechanisms+worksheet In PDF document text

  • https://nixuxani.weebly.com/uploads/1/3/4/4/134433038/2986647.pdfIn PDF document text
  • https://vixeroniwemeful.weebly.com/uploads/1/3/0/7/130740086/jibebepuxapupumus.pdfIn PDF document text
  • https://putebofodabisig.weebly.com/uploads/1/3/4/3/134368176/movagusalukavitoxof.pdfIn PDF document text
  • https://nobozufale.weebly.com/uploads/1/3/4/3/134322784/484bf87c00028.pdfIn PDF document text
  • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/bupoxegikifu_fenamijixogos_jimoxovume.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382789/normal_5f920e023266c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365586/normal_5f8760ec0f1c9.pdfIn PDF document text
  • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/6cfa1.pdfIn PDF document text
  • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/lebatarebi.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005a30.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005a30.bin)
  • https://cdn.shopify.com/s/files/1/0501/0279/6442/files/java.lang.runtimeexception_unable_to_instantiate_activity_componentinfo_android.pdfIn PDF document text
  • https://s3.amazonaws.com/nerugiraxura/tilanupumepojeji.pdfIn PDF document text
  • https://s3.amazonaws.com/juduk/21126913701.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/electronics_technical_aptitude_questions_with_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9382/8782/files/ccloud_tv_guide_tutorial.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/4540/4327/files/is_it_works_energy_drink_healthy.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/2321/8341/files/teachers_guide_grade_6_english_2nd_quarter.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/0293/5477/files/64311993599.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/7140/4739/files/throw_exception_manually_c.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_off00005a30.bin)

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