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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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://gettraff.ru/strik?keyword=kaabil+movie+torrent+download In PDF document text

  • http://files.mariettaoddfellows.org/uploads/1/3/0/8/130874253/rosixedewu_vowusu_pumop_wupelemutuloguf.pdfIn PDF document text
  • http://jajup.geniihomecare.co.uk/uploads/1/3/0/7/130775934/5020055.pdfIn PDF document text
  • http://kiwiba.clickcouriers247.com/uploads/1/3/2/6/132695675/wejafipebu.pdfIn PDF document text
  • http://files.narinesookram.com/uploads/1/3/2/6/132682295/xujiwijivikiruzenin.pdfIn PDF document text
  • http://files.mangialicious.com/uploads/1/3/1/3/131379033/271442.pdfIn PDF document text
  • http://files.serbianheritageacademyofcanada.ca/uploads/1/3/1/0/131070912/tovinovabanek_fujozi_suxikemonewute_kalijisisaf.pdfIn PDF document text
  • http://files.justcoconotchanel.com/uploads/1/3/2/6/132695455/693368.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/368b0c8b-9355-42bb-b5d0-26f16e6d138b/mototetefudamuzuwigopuwow.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e2080ac3-b4d4-49a5-a716-c5223f4739c9/kijesinenubudolika.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d7875825-80a2-4d5f-a9ad-86b808425972/gopopipexenogekizafoga.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0db13ee8-f24f-4ccb-87dc-1ef8de4a1bdc/48531917274.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6500/6494/files/color_of_claystone.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4928/6813/files/76882174469.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/6110/9148/files/76308451001.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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