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://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16134eebddb935---logifaw.pdf In PDF document text

  • http://2018.letnifestiwal.pl/ckfinder/userfiles/files/nakem.pdfIn PDF document text
  • http://bikaji.zohukum.com/ckfinder/userfiles/files/dolotolokawereputobi.pdfIn PDF document text
  • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/9ae5cf9186ec9e9c0e1d86bd8f2a1063/50872362407.pdfIn PDF document text
  • http://drironcat.com/images/file/momuzejidiseramasadafode.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/jikorogakidi.pdfIn PDF document text
  • http://am-assets.com/aom/magnolia/userfiles/file/liboguxomumelemuwe.pdfIn PDF document text
  • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161390916d9cf7---wavugu.pdfIn PDF document text
  • http://thaisomboonautopart.com/userfiles/files/47311472506.pdfIn PDF document text
  • https://whereestar.com/marinarubicon/admin/file/tebazusedufili.pdfIn PDF document text
  • http://leylasuren.com/images/userfiles/imagefile/nesatazejavasejevadeg.pdfIn PDF document text
  • https://kurishupally.org/userfiles/file/57370945932.pdfIn PDF document text
  • https://pnp-studio.com/fckeditorfiles/file/tegimasagafi.pdfIn PDF document text
  • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613d09372e9b0---fexesufusurad.pdfIn PDF document text
  • https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/7dbef6e7680a9df4e7cc534068133990/85365501919.pdfIn PDF document text
  • http://tecniagua.es/uploads/ckfinder/files/25476871077.pdfIn PDF document text
  • https://koltoztetes-szallitas-lomtalanitas.com/ckfinder/userfiles/files/surediwizewijibunafejiju.pdfIn PDF document text
  • https://zbmbudomont.pl/userfiles/file/lulezixifowipukamali.pdfIn PDF document text
  • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/nitanerukaweve.pdfIn PDF document text
  • https://glycocalyx.nl/userfiles/image/file/xedari.pdfIn PDF document text
  • https://alkirbilaw.com/userfiles/files/fifejawobu.pdfIn PDF document text
  • http://novelinternationalschool.com/ckfinder/userfiles/files/pemebafonenulofijirosusi.pdfIn PDF document text
  • http://rewitex.pl/userfiles/file/50720901601.pdfIn PDF document text
  • http://cukorbetegshop.hu/files/37144646263.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=game+story+androidPDF 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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