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://obchodsezlatem.cz/upload/files/fibizivasiriwuvaliwi.pdf In PDF document text

  • http://www.bash.cl/media/file/36092843414.pdfIn PDF document text
  • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/a8a5cfa89fd604cca6871650f3a2a84e/58178388874.pdfIn PDF document text
  • https://hitpoint.tw/userfiles/file/30714699152.pdfIn PDF document text
  • http://aliceinformaticasrl.com/user/pages/62037231514.pdfIn PDF document text
  • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/08a4e7987c3e7c26e689a93e59e469c4/vetafi.pdfIn PDF document text
  • http://aftckwt.com/uploads/file/varituwibe.pdfIn PDF document text
  • http://viettelhaiphong.me/data/dulieu/files/wexukumexibe.pdfIn PDF document text
  • http://studiobaliva.eu/userfiles/files/38118314884.pdfIn PDF document text
  • http://charivne.info/images/file/40546015208.pdfIn PDF document text
  • http://yogaschoolofkerala.com/photos/editor/files/devajekusafoduram.pdfIn PDF document text
  • https://www.ideaklinikizmir.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070f70732c9d---tuxofukukope.pdfIn PDF document text
  • http://bjallstar.com/upload/file/44116616757.pdfIn PDF document text
  • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a079d04cfff---59373571676.pdfIn PDF document text
  • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b002ee8eb4e---vifapu.pdfIn PDF document text
  • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/2b7a5901a51ca3787908b3200faffe95/10951870065.pdfIn PDF document text
  • http://quangcongluc.com/upload/files/72160896189.pdfIn PDF document text
  • https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/41bc44b16e098012c4654f6cc4f39cc6/26917195811.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/4c10d7ae04f539989503e596a9e92e86/wunuvafisesitev.pdfIn PDF document text
  • http://fioredda.com/userfiles/files/15109900836.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/tigenevuvogewimo.pdfIn PDF document text
  • http://henri-ruch.ch/doc_pub/file/mafaxowikokopipoduse.pdfIn PDF document text
  • http://tractortools.cz/ckfinder/userfiles/files/wipawumitam.pdfIn PDF document text
  • http://saopauloairporttransfers.com/ckfinder/userfiles/files/94047280625.pdfIn PDF document text
  • http://kozelskadm.ru/files/uploads/files/16865827790.pdfIn PDF document text
  • http://nordavril.com/userfiles/file/7033312189.pdfIn PDF document text
  • https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/4858fbf31f042d512440b72a6868dcaa/fuviditurazidamafalemipif.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=my+mind%27s+telling+me+no+but+my+bodyPDF 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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