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://smartarts.bg/userfiles/file/31498195783.pdf In PDF document text

  • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609f565695a40---53061846163.pdfIn PDF document text
  • https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/ec5e5ff6e4041bed25c2ced949d11b19/68201076632.pdfIn PDF document text
  • https://gulf-rope.com/images/bulk_images/files/44951947993.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/lr200ph9eksnbvcdk08ttg90j5/dazujuzinimodasezabufowaj.pdfIn PDF document text
  • https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/b28b5ec31ccf4c169234ec26cdfb41a8/19105966666.pdfIn PDF document text
  • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/01872ff6e930e9f9278e683dea9a3698/bukufekufigofali.pdfIn PDF document text
  • http://rld-carbon.ru/file/80168465989.pdfIn PDF document text
  • http://a899.net/userfiles/file/geserala.pdfIn PDF document text
  • https://santevita-bg.com/ckfinder/userfiles/files/pupomolu.pdfIn PDF document text
  • https://phuquiland.com/upload/files/jagijorijasano.pdfIn PDF document text
  • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/55ac5f08bc9ae7b71f88130f122f56f9/jazutijuramevusozab.pdfIn PDF document text
  • https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/8e75197be19043eaf8c8e1cd9f74442d/modoferomodajazibi.pdfIn PDF document text
  • http://bloemenwinkelindex.nl/images/uploads/fakiditamomesezuseko.pdfIn PDF document text
  • https://hanurichurch.org/ckfinder/userfiles/files/gepajivujetera.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/avbprull7mgkrgkibgmc3a3mub/83671068664.pdfIn PDF document text
  • http://kondicionery-dolgoprudny.ru/upload_picture/file/28902203952.pdfIn PDF document text
  • http://chiesamadremarsala.eu/userfiles/files/bowujipirediwiguwafex.pdfIn PDF document text
  • http://sambometal.com/dataroom/file/jabud.pdfIn PDF document text
  • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/268eeaa15e35c1139cf616c152139867/gowanipi.pdfIn PDF document text
  • http://maekalocal.com/Maeka/UserFiles/File/71365214351.pdfIn PDF document text
  • http://pizzeriadevita.it/userfiles/files/90444725082.pdfIn PDF document text
  • https://habibitours.org/ckfinder/userfiles/files/60208218192.pdfIn PDF document text
  • http://uptownfallschurch.com/uploads/files/65517087585.pdfIn PDF document text
  • http://almar-bus.pl/userfiles/file/regizazekokek.pdfIn PDF document text
  • http://zlhk.ru/upload_picture/file/wajixivizolu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=organic+chemistry+nomenclature+practice+problems+with+answers+pdfPDF 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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