Malicious PDF — malware analysis report

Heuristics 6

• 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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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/strik?keyword=simethicone%2528+mylicon+davis+pdf In PDF document text

  • http://pefigij.myfootballcamps.com/uploads/1/3/1/4/131437421/f2b3035f0d9.pdfIn PDF document text
  • http://files.learningspacesandlearningstyles.com/uploads/1/3/1/4/131455463/juduzemud_kibinududotus.pdfIn PDF document text
  • http://riwazuf.deborahdebono.com/uploads/1/3/1/4/131482812/53adb61eace2.pdfIn PDF document text
  • http://zojanop.dedethford.com/uploads/1/3/1/4/131410399/444bc6cce2.pdfIn PDF document text
  • http://vorodu.bodytalkwithsusan.com/uploads/1/3/0/7/130775795/8295487.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/1/0461/3239/6200/files/filmywap_south_movies_2019_free.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/7630/2486/files/paid_internship_agreement_template_uk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/runter_man_2_zombies.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/2315/4847/files/mewomutame.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/7616/1188/files/57783731506.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d71707ab-fe0c-4e93-8f1d-c8ac2d7ee4a6/fulaxidewetevitotovesip.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/be3d2478-7d90-42f0-bc53-29404f91a344/puxajuwomamu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/94393bbc-a733-465e-b7b7-669992111417/fosugefezafowotexef.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/66db6f10-1996-4a14-871a-ca933d6b43e8/bimixitirazajerozewowaka.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e004a0f4-cd7e-4c75-809f-6f9e2a4b3ca2/winazabuk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8eb1f351-b580-40f0-899f-7d8d83a368ac/jilulixeri.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a3dd717c-a22c-4122-9845-efd738528a91/vidovoweroduropa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3337df9e-055f-4e6c-8a0a-31f54db6a552/86733421360.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0a1d6186-5ef5-4203-8296-49f530dccd9d/narepabijepig.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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