Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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 https://queure.ru/uplcv?utm_term=printable+spelling+worksheets+for+grade+4 PDF link annotation

  • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160c49905e77cd---wazuve.pdfIn PDF document text
  • https://sasalidayanisma.org/uploads/file/rurewe.pdfIn PDF document text
  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/9afc56a1a89deafd64ce8d6ddc49a6bc/xirik.pdfIn PDF document text
  • https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/5fc4032f61e1a5b91126da00a3a12e0e/77017130381.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/sizarabadines.pdfIn PDF document text
  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16070415da8016---14797603186.pdfIn PDF document text
  • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c22bcdd24f9---79623214159.pdfIn PDF document text
  • http://nessium.fr/userfiles/file/60578976310.pdfIn PDF document text
  • http://emirates-offshore.com/uploads/image/file/79456270519.pdfIn PDF document text
  • https://serka.com/serka/upload/files/36500903162.pdfIn PDF document text
  • https://centrosteadycam.it/wp-content/plugins/super-forms/uploads/php/files/3607ff871b74441da91fdc4e8353e55c/26205544106.pdfIn PDF document text
  • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609118557f7d2---werodononij.pdfIn PDF document text
  • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609be7ffefedb---valoveza.pdfIn PDF document text
  • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/8c57413c72ac3b394bc87e8c76ce57c6/fesuvuwivabika.pdfIn PDF document text
  • https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/160d22e02b2961---20115313375.pdfIn PDF document text
  • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16089770def213---15660676038.pdfIn PDF document text
  • https://menuiserie-sainte-anne.fr/userfiles/file/xajasabovino.pdfIn PDF document text
  • http://fairway.cc/images/blog//file/35476499015.pdfIn PDF document text
  • http://ahcxdq.com/uploads/file/142100186708.pdfIn PDF document text
  • https://aimara-bg.com/userfiles/file/51905958578.pdfIn PDF document text
  • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/b468c5dceb1685010d22090cdc5d01da/71481260261.pdfIn PDF document text
  • https://lordoptika.hu/files/files/57236691048.pdfIn PDF document text
  • http://babywagen24.de/userfiles/file/tufebadid.pdfIn PDF document text
  • http://kaies.cn/upfiles/21052320060719713526rnyo.pdfIn PDF document text
  • https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/88d03b8bb751eb0d581c273622494ca7/foxixojudiv.pdfIn PDF document text
  • http://nguyenquangcomputer.com/upload/ck/files/86600084984.pdfIn PDF document text
  • http://faradbox.pl/files/file/28055402128.pdfIn PDF document text
  • 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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