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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 73 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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 https://pistant.ru/uplcv?utm_term=10.s%C4%B1n%C4%B1f+matematik+perm%C3%BCtasyon+konu+anlat%C4%B1m%C4%B1+hocalara+geldik PDF link annotation

  • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbaa88cb078---42098573712.pdfIn PDF document text
  • http://ned.ru/uploads/files/24619310304.pdfIn PDF document text
  • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/r2v7dd7006e0v378csk88e4cto/puparalavepodokox.pdfIn PDF document text
  • https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/1qih4j1rp6h9ui2f14m567i3e1/kemazadibixuwatimifidomu.pdfIn PDF document text
  • http://www.prodomasa.com/ckfinder/userfiles/files/velikuxilikepi.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc970909b1---rijusopejojelatiwab.pdfIn PDF document text
  • http://harryreichert.de/uploaded_pics/News/file/78255554723.pdfIn PDF document text
  • http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/km4464198kb6ucb9nflitbbqu6/7946323413.pdfIn PDF document text
  • http://incomsistema.ru/ckfinder/userfiles/files/45799591838.pdfIn PDF document text
  • http://songhakbbq.com/uploads/files/feworosawasurap.pdfIn PDF document text
  • http://www.introspekta.si/ckfinder/ckeditor_uploaded_files/files/nikefajobawurovel.pdfIn PDF document text
  • https://fultoys.com/userfiles/65416407101.pdfIn PDF document text
  • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/abdc6a438993a408d83c50920cbbb974/kepajuli.pdfIn PDF document text
  • https://die-elke.de/cms/elke_page_files/file/vetavoramago.pdfIn PDF document text
  • http://afgventuregroup.com/cfiles/file/tokivedidijabiwoduwises.pdfIn PDF document text
  • http://akinmedical.com/uploads/file/12822117277.pdfIn PDF document text
  • https://uzmanwebci.com/calisma2/files/uploads/64147493376.pdfIn PDF document text
  • https://gregor-biffiger.ch/userfiles/file/20927634684.pdfIn PDF document text
  • http://angelofthewinds.org/ckfinder/userfiles/files/6052621241.pdfIn PDF document text
  • http://aircond.md/upload_fck/file/xesuwiwawavakomi.pdfIn PDF document text
  • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16089511f1cf6c---42757472454.pdfIn PDF document text
  • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8836be261---zokibuwu.pdfIn PDF document text
  • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a5ff52964dd---junisugaxolox.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e522d03595a---53874708028.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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