Malicious PDF — malware analysis report

Heuristics 5

• 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://druttle.ru/wb?keyword=mechanical%20engineering%20lab%20reports PDF link annotation

  • http://canlisohbetim.net/picsart_mod_apk_old_version29pje.pdfIn PDF document text
  • https://cdn.sqhk.co/nanubebebot/iegijfR/32257027829.pdfIn PDF document text
  • https://dumuzuvo.weebly.com/uploads/1/3/4/6/134695275/9863584.pdfIn PDF document text
  • https://jifalutisapore.weebly.com/uploads/1/3/4/7/134772579/xemarox.pdfIn PDF document text
  • https://kobuzonoge.weebly.com/uploads/1/3/1/4/131452837/segowujuro_joxexasuv.pdfIn PDF document text
  • https://kulufitobapesad.weebly.com/uploads/1/3/4/4/134443603/3051631.pdfIn PDF document text
  • https://pebogifi.weebly.com/uploads/1/3/1/4/131438694/mixum.pdfIn PDF document text
  • https://vukajikabazaxeg.weebly.com/uploads/1/3/4/7/134711597/902917.pdfIn PDF document text
  • https://gamitodotabezoj.weebly.com/uploads/1/3/1/4/131453651/4743220.pdfIn PDF document text
  • https://cdn.sqhk.co/tejosepu/1jcxmig/zufonojimasajizobogu.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/tojazudibumogab/sizugexepeninipaxes.pdfIn PDF document text
  • https://s3.amazonaws.com/xefejevife/78931762200.pdfIn PDF document text
  • https://s3.amazonaws.com/zatasipezeg/supegimafigog.pdfIn PDF document text
  • https://s3.amazonaws.com/kexamoxusinixu/air_war_games_android.pdfIn PDF document text
  • https://s3.amazonaws.com/vibasujefir/63077230096.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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