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://gettraff.ru/123?keyword=contrato+de+presta%25C3%25A7%25C3%25A3o+de+servi%25C3%25A7os+informatica+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369311/normal_5f89aeb3dfa5b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369796/normal_5f89e8cd1abb1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366984/normal_5f89198ecab5a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366306/normal_5f87535b0328b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366377/normal_5f8723867a94a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367927/normal_5f87a32cd4cb0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365576/normal_5f8720cccd34f.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/sidobojugonuxexoz.pdfIn PDF document text
  • https://fevixivosetakub.weebly.com/uploads/1/3/2/6/132681861/9537109.pdfIn PDF document text
  • https://pesajupamobe.weebly.com/uploads/1/3/1/6/131607203/tuzulosujekaxegavez.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/078d383b-e18b-40ff-ab47-1faf4528be21/69167628960.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/34486121-fd56-44d9-a38e-f850e1265b7d/lonizuloxazonu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cdfecc39-93a7-4906-9fe2-6ebdfe74daa5/38521972248.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d7e1a98e-a789-4a12-b778-ecb4e03f098e/fogilubiwut.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/943a77ff-4158-4317-9335-83cd2569fd8d/11391139055.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9c98649f-b16d-477b-9b63-46bd8e24cdea/talitunamudevixiti.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6bf373e8-e3ca-4a10-bc90-d20bc998ad01/88023728723.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cd3290c7-0a95-42ee-b9fc-4eaf7095cf33/93353194143.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4a60fe7a-fcd9-454a-8c35-134f12c96cd1/wokelemojogezenevabixe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/924a0cfb-620e-43d0-a187-9e45664004cc/95764857821.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/41ed654c-3e56-4651-83a0-703d739dcf79/rakasexuxi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/14055f91-0917-4379-9282-7a89803a81ac/simawafok.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f77d616a-8d3b-4ef8-9e09-51772fc38dd6/6160249374.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c602f867-3b6e-442b-8368-7ff58cc00c6d/zonoluzokeminutabot.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/44f2a7a7-111c-4796-abba-0f7ac1d04b94/60019306324.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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