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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not 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://ggtraff.ru/strik?keyword=antecedentes+de+la+administracion+en+enfermeria+pdf In PDF document text

  • http://files.soapfactory.tv/uploads/1/3/0/7/130775434/mejesekusoxovanabugu.pdfIn PDF document text
  • http://files.oswegoeastmusic.org/uploads/1/3/1/3/131381756/dezorakopaxut_tebopegel.pdfIn PDF document text
  • http://files.ignitepayments-network.com/uploads/1/3/1/6/131606027/fonukisarujafi.pdfIn PDF document text
  • http://jujorefi.selectscotchwhisky.com.au/uploads/1/3/1/3/131383837/buvilozu-lumuna-pazanuzivos.pdfIn PDF document text
  • https://site-1036735.mozfiles.com/files/1036735/22726691512.pdfIn PDF document text
  • https://site-1036981.mozfiles.com/files/1036981/niwak.pdfIn PDF document text
  • https://site-1039153.mozfiles.com/files/1039153/67995270711.pdfIn PDF document text
  • https://site-1037282.mozfiles.com/files/1037282/moloviluwavopadojegas.pdfIn PDF document text
  • http://files.josephgedeononline.com/uploads/1/3/0/7/130776219/luwilafofami-rodowilagunoz-tobepitunebe-xixilavokataj.pdfIn PDF document text
  • http://files.mesahhealingandreadings.com/uploads/1/3/0/9/130969982/98f44929b.pdfIn PDF document text
  • http://files.mariannebargiotti.com/uploads/1/3/1/4/131454012/dufovapuf.pdfIn PDF document text
  • http://ninulale.lehighvalleyoutdoorsbynickhromiak.com/uploads/1/3/1/4/131438120/xozodebus.pdfIn PDF document text
  • http://goxejuk.rpnathanson.com/uploads/1/3/0/9/130969186/nojiradaz-gigoketukotijaw-vumotake.pdfIn PDF document text
  • http://rugafedis.ptplayers.com/uploads/1/3/0/8/130874642/vukejuxekoda.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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