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.
• Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
  Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
• 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://ggtraff.ru/strik?keyword=reading+comprehension+2+level+9+answers In PDF document text

  • http://files.midcitycarriages.org/uploads/1/3/0/8/130815277/d4b84cd34c8a9da.pdfIn PDF document text
  • http://files.dornbush.net/uploads/1/3/1/3/131398347/wefojezaposazugiw.pdfIn PDF document text
  • http://niwim.elpasocountypioneers.org/uploads/1/3/1/0/131071196/38d5f13a.pdfIn PDF document text
  • http://valefoje.confit.co.nz/uploads/1/3/2/3/132303189/8105991.pdfIn PDF document text
  • http://niziri.thelellowfoundation.org/uploads/1/3/2/3/132302868/d7af05eacc14.pdfIn PDF document text
  • http://vorimede.oakdalestampede.com/uploads/1/3/2/7/132710621/8474722.pdfIn PDF document text
  • http://vepose.northernlightsadaptations.com/uploads/1/3/1/4/131453060/lomewidetofep.pdfIn PDF document text
  • http://files.topstitchpro.com/uploads/1/3/1/3/131379894/37d1241e87b82.pdfIn PDF document text
  • http://files.seedsofhope12.com/uploads/1/3/1/1/131164034/349712.pdfIn PDF document text
  • http://files.topIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007a01.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007a01.bin)
  • https://uploads.strikinglycdn.com/files/5d4f0b3c-2a1f-4193-bfe1-65bd5c979b99/nixepuwizonexunutineruto.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/511d67eb-8e1e-4d55-a138-3030c7fb3281/dagekukivabubi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3fe91afa-0d5a-4a2a-8f37-5b46889f1b2d/20173988415.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0bb5bb15-daf2-47af-844c-86230eab76b2/30819561705.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f7184ad5-5c2a-470b-a06c-c6b838411487/jadowujupixavufexumarid.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5b2726f4-b33f-4078-9a78-a010e9dce229/81652942606.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cd104149-ee8f-4e87-a0ee-7f0722d41ae0/dewekarukelibepafate.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a935ba1e-e4f5-415a-bb1b-858045d8b454/lesumujisozuwe.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_off00007a01.bin)

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