Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://laborke.ru/uplcv?utm_term=who+viewed+my+instagram+profile+apk+mod PDF link annotation

  • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/161422f4f1f9fe---88634553735.pdfIn PDF document text
  • http://studioarchterreni.it/userfiles/files/zejumesoruvis.pdfIn PDF document text
  • http://artdental.hu/editor_up/32199480775.pdfIn PDF document text
  • http://panova-art.com/files/file/xezawukog.pdfIn PDF document text
  • http://stluciachamber.org/uploadedImages/contentImg/file/62194607778.pdfIn PDF document text
  • http://mvpbuilding.com/userfiles/file/12996741304.pdfIn PDF document text
  • http://rockhouseschool.com/rockhouse/uploads/files/22849677509.pdfIn PDF document text
  • https://daaeportrett.no/upload/file/vabevonurebalopusivewefij.pdfIn PDF document text
  • http://studiolegalezullo.eu/userfiles/files/pogofifusonojawibuxadiwiz.pdfIn PDF document text
  • http://www.ciesol.com/ckfinder/userfiles/files/88592710949.pdfIn PDF document text
  • https://srilangkapools.com/contents/files/xebuwonul.pdfIn PDF document text
  • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138472106b16---xinulesowi.pdfIn PDF document text
  • http://perevodvnegiloifond.ru/pict/file/guwevadapadubejawi.pdfIn PDF document text
  • http://goforthegreengolfpools.com/userfiles/file/52458802342.pdfIn PDF document text
  • http://kpotplace.com/uploads/files/12186330523.pdfIn PDF document text
  • https://eguiders.com/uploads/86501249292.pdfIn PDF document text
  • http://www.valaisconsulting.ch/file/81748498742.pdfIn PDF document text
  • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/842846778a0eecfc3fc265d1d3b5fd74/81757882583.pdfIn PDF document text
  • http://fgosvo.ru/files/files/zugasuvewijudo.pdfIn PDF document text
  • http://thietbianninh188.com/uploads/files/zakalafowoviguwawufivem.pdfIn PDF document text
  • https://avukat.dnsaktif.net/upload/files/nanetoru.pdfIn PDF document text
  • http://park-seversk.ru/other/js/ckfinder/userfiles/files/texidazodokazesulebix.pdfIn PDF document text
  • https://araprinter.com/ckfinder/userfiles/files/jewajebi.pdfIn PDF document text
  • http://hotelgiottotorino.com/userfiles/files/momikukena.pdfIn PDF document text
  • http://sk-massimo.com/js/upload/files/zakuzawol.pdfIn PDF document text
  • http://myxroad.net/upload/userfiles/file///27461120718.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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