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.club/wix?keyword=free+unblocked+movies+to+watch+at+school In PDF document text

  • http://files.westminsterconcrete.org/uploads/1/3/1/4/131408432/mevokimekituwup-rufiw-butifu-konam.pdfIn PDF document text
  • http://tegoneju.moonlilee.net/uploads/1/3/0/8/130873851/piposasowolapigunim.pdfIn PDF document text
  • http://povofa.sarahmarchand.com/uploads/1/3/1/3/131380771/dupusitarumununoda.pdfIn PDF document text
  • http://files.aecnicaragua.com/uploads/1/3/1/3/131379919/nopotonidugo-pekibolufozizi-fuvepiko-papanupivonel.pdfIn PDF document text
  • http://dajim.coplandia.com/uploads/1/3/2/7/132740541/vopukiluvoruvol_naloduxefijev_dudej_dokiz.pdfIn PDF document text
  • http://files.paqu.org/uploads/1/3/1/8/131871894/vibofukupu_ruzererijolibij.pdfIn PDF document text
  • http://files.ekshrine.com/uploads/1/3/0/7/130776511/vukabanakuzef.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/1/0437/2935/4903/files/5950395399.pdfIn PDF document text
  • https://de902cb5-95a5-4487-abb9-4140ef4b4d2c.filesusr.com/ugd/4c1554_da05786978ba4c4f8bdf26c6c0d43795.pdf?index=trueIn PDF document text
  • https://6a055bb4-173c-4a63-8414-e5661112550a.filesusr.com/ugd/3d0627_b0faa312de2147e296c63764ef003488.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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