Malicious PDF — malware analysis report

Heuristics 7

• 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 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.
• 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.
• 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://bctlorraine.org//userfiles/file/81378379811.pdf In PDF document text

  • http://sbsinternationalschool.org/sbsisnew/userfiles/file/gikewitobagof.pdfIn PDF document text
  • http://premiercontractinginc.com/files/file/16624418827.pdfIn PDF document text
  • http://vzwsportenmuziek.com/content_docs/pedatodoxif.pdfIn PDF document text
  • https://baxsporthorses.com/userfiles/file/vulovoravasup.pdfIn PDF document text
  • https://rhodium.vn/uploads/news_file/15932651353.pdfIn PDF document text
  • https://binarbaidfabrication.com/public_html/userfiles/file/varorapoka.pdfIn PDF document text
  • https://styliststudios.com/imagesTE/file/dadepotetasivozupazuribi.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/letm8vbekq2tqrtpal915p6982/vewelaviwiv.pdfIn PDF document text
  • http://akinmedikal.com/uploads/file/rularobetijijovepumeka.pdfIn PDF document text
  • http://bluelakehomestay.com/uploads/image/files/bibodarapazopimuxedoxoj.pdfIn PDF document text
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/cf4a10ed44f7ebb4fbf2ec5cd3e699fe/23333215692.pdfIn PDF document text
  • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/fd7f2ba706c3d2d38cc70366170b4e33/83122360982.pdfIn PDF document text
  • http://hutbephottaihaiphong24h.com/upload/files/91715170158.pdfIn PDF document text
  • http://prospekt-rostov.ru/ckfinder/userfiles/files/paratagetodebojotuf.pdfIn PDF document text
  • https://biomedchita.ru/imeg_master/file/tilujosufokejuxun.pdfIn PDF document text
  • https://kovosluzba-praha.cz/res/file/nugibaduma.pdfIn PDF document text
  • http://masonhn.com/d/files/notodexoxakimom.pdfIn PDF document text
  • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/16079e64b524a2---82290669582.pdfIn PDF document text
  • https://elesud.it/img_pagine/file/47190328277.pdfIn PDF document text
  • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16091067a318e5---36135878073.pdfIn PDF document text
  • http://fontanarosaserigrafia.it/userfiles/file/37106968422.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077287116df6---95358284343.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=cursive+writing+worksheet+5th+gradePDF 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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