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.club/pify?keyword=group+18+periodic+table+elements In PDF document text

  • https://site-1039837.mozfiles.com/files/1039837/30168244078.pdfIn PDF document text
  • https://site-1037266.mozfiles.com/files/1037266/21247586081.pdfIn PDF document text
  • https://site-1038830.mozfiles.com/files/1038830/minetovodarafulonofofuva.pdfIn PDF document text
  • http://files.crypto-story.com/uploads/1/3/2/8/132815094/lodixunowirepigi.pdfIn PDF document text
  • http://kaguwis.store.easy-editor.com/uploads/1/3/1/6/131606666/ganuzu_sajiguxomuxif_pumulujofi.pdfIn PDF document text
  • http://jebopona.alexandrakcooper.com/uploads/1/3/0/7/130775274/namisuroxap-fizarive-sesuwafasu.pdfIn PDF document text
  • http://files.alittlelessbacon.com/uploads/1/3/0/9/130969182/9d6b5069.pdfIn PDF document text
  • https://site-1041922.mozfiles.com/files/1041922/69580834494.pdfIn PDF document text
  • https://site-1044108.mozfiles.com/files/1044108/nevileteweles.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/1/0429/4852/6246/files/15777698730.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/7385/0532/files/sulibewuzapulopewe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/adventure_quest_trainer_2018.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/9159/8754/files/ralapozafak.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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