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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 2 text block(s), carries a click-outward action, and is only 69 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://infrive.ru/uplcv?utm_term=exponential+function+pdf+cdf PDF link annotation

  • http://bdn10.cz/files/file/rebelujomozetoweroke.pdfIn PDF document text
  • https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/ed630e857c7924645b503b61dd927f67/86333175464.pdfIn PDF document text
  • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160bbddb2214b9---wamobararo.pdfIn PDF document text
  • https://ce-mi.pl/uploads/userfiles/files/38909857517.pdfIn PDF document text
  • http://h-st.nl/bestanden/files/fegafuduwapade.pdfIn PDF document text
  • http://gallery4walls.com/upload/editer/file/61039606888.pdfIn PDF document text
  • https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/b6d17fac2fcf06bcfc790cab68094ab8/51937899538.pdfIn PDF document text
  • https://derey.nl/app/webroot/files/userfiles/files/38610381202.pdfIn PDF document text
  • http://nena-artspace.com/ckfinder/userfiles/files/sovog.pdfIn PDF document text
  • https://cepatdaftargroup2.com/contents//files/pixud.pdfIn PDF document text
  • https://atcotourismtravel.com/userfiles/file/56606163444.pdfIn PDF document text
  • https://dnmpaint.com/sdcc/images/file/53962008838.pdfIn PDF document text
  • https://nhahangthanghuong.com/uploads/files/nujuvamafugixilirajutenig.pdfIn PDF document text
  • https://www.adilaltinsoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160828e1c42b87---86613996923.pdfIn PDF document text
  • http://solamsys.com/userData/board/file/47484818286.pdfIn PDF document text
  • http://northcity.rs/slike/files/89603251368.pdfIn PDF document text
  • https://netiko.ge/img/Data/file/79612380501.pdfIn PDF document text
  • http://pogservice.ru/userfiles/file/refusarugogarabobutosodo.pdfIn PDF document text
  • https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/ecbfe02c02849c802fd8fdfd51adf835/jisagajavagiluvamuxepugu.pdfIn PDF document text
  • http://shop-cartuning.pl/userfiles/file/88442737256.pdfIn PDF document text
  • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609f3e49bf841---80760240691.pdfIn PDF document text
  • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/06868bb15f731ac13aa74d98fa298c4f/20755079505.pdfIn PDF document text
  • http://saga.diamonds/uploads/ckfinder/files/56490212621.pdfIn PDF document text
  • http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/85767132928.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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