Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://jacksth.ru/award?keyword=how+to+get+free+shipping+on+brandy+melville PDF link annotation

  • https://cdn.sqhk.co/gujamozulas/59hd97l/talking_tom_cat_2_download_apk.pdfIn PDF document text
  • https://cdn.sqhk.co/runenuti/a5Ayjgg/facebook_lite_apk_version_history.pdfIn PDF document text
  • https://kedasolusezobu.weebly.com/uploads/1/3/5/3/135394891/667533.pdfIn PDF document text
  • https://cdn.sqhk.co/lanuniwa/jc9Jicx/40182379303.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4506159/normal_601e04815ab51.pdfIn PDF document text
  • https://cdn.sqhk.co/vomuvojovi/iaiCvgc/xiziwizejosexopa.pdfIn PDF document text
  • https://cdn.sqhk.co/nivavepe/jjjZhaO/cool_fonts_font_generator_font_changer.pdfIn PDF document text
  • https://lusenivusimutom.weebly.com/uploads/1/3/4/8/134887898/wisawabigi.pdfIn PDF document text
  • https://cdn.sqhk.co/mogujawogo/ghjvhbH/clash_of_three_kingdoms_hack.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380691/normal_5fdb98cf6388f.pdfIn PDF document text
  • https://cdn.sqhk.co/bupewazadufa/uUjfGbz/smart_soccer_ball_app.pdfIn PDF document text
  • https://cdn.sqhk.co/takabalal/cBihyMQ/crecimiento_microbiano_definicion.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://zuwapiw.rf.gd/bedsheet_sale_singapore_2019.pdfIn PDF document text
  • http://pasukebufi.rf.gd/52021754142.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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