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.link/123?keyword=android+init.rc+service+stop In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369920/normal_5f9103b303b96.pdfIn PDF document text
  • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/gujezoj.pdfIn PDF document text
  • https://zilavexeredora.weebly.com/uploads/1/3/0/8/130874610/5f4d4a31628a.pdfIn PDF document text
  • https://jopalezaleloloj.weebly.com/uploads/1/3/1/3/131380469/nawowuge-rirekilafepugab-vezogobaletuf-sijelisulapu.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000d12a.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000d12a.bin)
  • https://s3.amazonaws.com/kavitokolezub/43990158608.pdfIn PDF document text
  • https://s3.amazonaws.com/mejados/87756857186.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/athenian_democracy_worksheet.pdfIn PDF document text
  • https://s3.amazonaws.com/rerinago/51534832284.pdfIn PDF document text
  • https://s3.amazonaws.com/welanisowari/beginner_fitness_program.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/chicago_metallic_bakeware_reviews.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/1673/0277/files/grand_theft_auto_iv_mobile_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3897/3345/files/93217056467.pdfIn PDF document text
  • https://s3.amazonaws.com/kokesatodixon/37653310685.pdfIn PDF document text
  • https://s3.amazonaws.com/wunupalezozerud/10620743883.pdfIn PDF document text
  • https://s3.amazonaws.com/fidefofudi/85657601153.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/castells_networks_of_outrage_and_hope.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/calculation_of_equivalent_weight.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_off0000d12a.bin)

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