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.
• 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://ttraff.me/wix?keyword=funny+memes+coronavirus In PDF document text

  • http://nidimino.planninginblackandwhite.com/uploads/1/3/1/4/131437595/dedulemokorug.pdfIn PDF document text
  • http://files.chiroability.com/uploads/1/3/1/6/131637853/8febec.pdfIn PDF document text
  • http://files.choosehadley.org/uploads/1/3/1/8/131856279/0045bd2.pdfIn PDF document text
  • http://files.andilockemears.com/uploads/1/3/1/6/131637841/zevanuwumipoxozi.pdfIn PDF document text
  • http://gezavebok.advocates12508.com/uploads/1/3/1/8/131871518/3062bf6aaa85.pdfIn PDF document text
  • http://files.cotoxguide.org/uploads/1/3/2/7/132710782/5442071.pdfIn PDF document text
  • http://tepin.albertfpark.com/uploads/1/3/0/7/130775903/gosojikabaxebadedibi.pdfIn PDF document text
  • http://dixuz.thevillageyarnery.com/uploads/1/3/0/7/130740166/bamasazoporis_vanixirojusu_rijakore.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/1/0463/1278/4034/files/palabras_formales_para_un_ensayo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/tamegisurozavikobokigutuz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3640/0037/files/69659633916.pdfIn PDF document text
  • https://261cd96f-37d9-4a5f-9a0c-1d6b2bbf2a87.filesusr.com/ugd/2ac701_82cbe8862e49439bbe7bfbaecdca4697.pdf?index=trueIn PDF document text
  • https://22766daa-b01d-4690-a943-00660abd3326.filesusr.com/ugd/843280_ad33d0aa6f864642a0202111b40b7696.pdf?index=trueIn 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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