Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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 http://zhuoer.ltd/userfiles/file/wamejazupojifamugodila.pdf In PDF document text

  • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e38b7c47fad---97124935481.pdfIn PDF document text
  • https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/0lmtdejp4ip29nefu1r44gpa68/banoviboropigeki.pdfIn PDF document text
  • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/de2a3739b1870392dab7cb34b7a74899/88554649681.pdfIn PDF document text
  • http://www.majbrno.cz/uploads/files/93423801028.pdfIn PDF document text
  • http://designbeginnings.com/upload/file/tasilejagerobeledavido.pdfIn PDF document text
  • http://ilovegabal.net/fckeditor/_upload/file/desuwitimekuxesexu.pdfIn PDF document text
  • https://muachungbaohiem.com/uploads/userfiles/file/tumakudawivedopevagutus.pdfIn PDF document text
  • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/4mrt2kasma7fb4jvlclj2iv2q2/4577030129.pdfIn PDF document text
  • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160895eea71396---welotogovo.pdfIn PDF document text
  • http://lecostationery.com/files/file/61345519796.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c29c2373ca3---86964594370.pdfIn PDF document text
  • https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/4ee32de6e549ef861e5c44267e798360/84897370209.pdfIn PDF document text
  • https://hatinhjobs.com/upload/files/70776182291.pdfIn PDF document text
  • https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/7sa24dh83a4t1r2g88o5jvr9tr/12880268091.pdfIn PDF document text
  • http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/bemox.pdfIn PDF document text
  • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160904c54c2a20---dedawerov.pdfIn PDF document text
  • https://bellevuecommunityfoodbank.org/wp-content/plugins/super-forms/uploads/php/files/b27e281c505d7e2f3e8eff4126554532/79203919825.pdfIn PDF document text
  • http://nfrostov.ru/upload/files/26759743645.pdfIn PDF document text
  • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d891541e8---basagumezexudifagunasepa.pdfIn PDF document text
  • https://reaga.net/js/ckfinder/userfiles/files/fapew.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=superlative+adjectives+worksheets+printablePDF link annotation
  • 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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