Malicious PDF — malware analysis report

Heuristics 4

• 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 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://cctraff.ru/strik?keyword=humpis+schule+ravensburg In PDF document text

  • https://site-1037178.mozfiles.com/files/1037178/15293169706.pdfIn PDF document text
  • https://site-1039727.mozfiles.com/files/1039727/53021964092.pdfIn PDF document text
  • https://site-1039156.mozfiles.com/files/1039156/xenofatozuzigaz.pdfIn PDF document text
  • http://gelavubej.impartalliance.org/uploads/1/3/1/4/131407592/beduzewizoveges_tuxeganupon_vozijib_moguxijuwur.pdfIn PDF document text
  • http://files.thothfantasyquests.com/uploads/1/3/0/9/130969915/kupufovev_modalifegatela.pdfIn PDF document text
  • http://files.bakersfieldbirthnetwork.com/uploads/1/3/1/4/131437848/9633bc21960f1b.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/1/0441/3744/7576/files/fauquier_county_schools_reopening_plan.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5140/8799/files/49255407621.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/3398/6725/files/93509906536.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/6768/2197/files/real_estate_commission_charleston_wv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a680435f-85eb-4e94-9bef-e0eaa7e238d3/47889252494.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/07795b71-deb3-412e-9e03-fbe4fe08bc88/13209192474.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/660b2412-f1d5-4db2-a64e-f98a5b7e767b/68936513582.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d3b65942-7111-4a54-ae03-2d8987d0cb68/99667315128.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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