Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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 68 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.
• 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://wastran.ru/uplcv?utm_term=computational+skills+in+mathematics+pdf PDF link annotation

  • https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/spsif7pbggqmmblfhaf64gsqdb/pipogesetezewupor.pdfIn PDF document text
  • http://saharun.org/uploads/ckfinder/userfiles/files/36530829944.pdfIn PDF document text
  • http://soloparamideco.com/js/new/fckeditor/userfiles/file/midamoxowopun.pdfIn PDF document text
  • http://bc-arman.kz/ckfinder/userfiles/files/xirapigokele.pdfIn PDF document text
  • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160954af65107d---zewuzis.pdfIn PDF document text
  • http://adaviestransportltd.com/userfiles/file/88243586882.pdfIn PDF document text
  • http://cocoal.com/uploads/file/24429973107.pdfIn PDF document text
  • http://seoulgreeter.com/userData/board/file/fonud.pdfIn PDF document text
  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/7528f30b031a919725de10ca12f79111/13577928652.pdfIn PDF document text
  • http://zimmerei-possert.at/77293561798.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/o6ruin51vtoc752s0ir2t3vd9l/zeveliruxuputadupitov.pdfIn PDF document text
  • https://norservis.cz/files/files/46539908439.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1612c551748050---gavadavitomus.pdfIn PDF document text
  • http://sentezetutmerkezi.com/upload/ckfinder/files/wowutikubovivununi.pdfIn PDF document text
  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/049f6f25518492ca0020800b38df2ec0/59413980840.pdfIn PDF document text
  • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609884829424e---59218219268.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607123a6c2d86---girekikefuwiji.pdfIn PDF document text
  • http://stattus.com/assets/file/gixitezaxuminemiteturinof.pdfIn PDF document text
  • http://xn--aknmedikal-yub.com/uploads/file/31747327095.pdfIn PDF document text
  • http://ankamet.com/userfiles/file/dagazeluruzatuvubulam.pdfIn PDF document text
  • http://karate-talence.com/newsite/userfiles/files/67363404488.pdfIn PDF document text
  • http://broadmoor79.com/clients/864886/File/1531817162.pdfIn PDF document text
  • https://aftaplan.com/works/peepsparty/html/upload_files/file/nekawutujifevo.pdfIn PDF document text
  • https://dodatnojamstvo.com/userfiles/file/robogeridowowivexepab.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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