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
• 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://archism.ru/uplcv?utm_term=explain+osi+model+with+neat+diagram PDF link annotation

  • http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/84752976781.pdfIn PDF document text
  • https://softwebstar.com/shop/userfiles/file/fubevozefuxabexovi.pdfIn PDF document text
  • https://infrapanel-alegjobbfutes.hu/userfiles/file/74861118593.pdfIn PDF document text
  • http://hz-kontejnery.cz/ckfinder/userfiles/files/84564400273.pdfIn PDF document text
  • http://rutka.pl/media/upload/files/21d72146f1dc2c220d529ba9010147ac.pdfIn PDF document text
  • https://biholka.cz/uploades/userfiles/file/12287664604.pdfIn PDF document text
  • http://hosteleriayvending.com/ckfinder/userfiles/files/sevozenulewomata.pdfIn PDF document text
  • https://speculatio.in/ci/userfiles/files/11647054285.pdfIn PDF document text
  • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff8cc5b742---ruveroma.pdfIn PDF document text
  • http://paglialonga.it/userfiles/files/pawupurukefogabu.pdfIn PDF document text
  • https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/e726c0b37715e9afd086dc7dbb9f1668/fadekixep.pdfIn PDF document text
  • https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/xebafamexakudafekexinu.pdfIn PDF document text
  • http://abwrosedale.com/uploads/files/10849760283.pdfIn PDF document text
  • http://clubselectionvoyages.net/images/file/tusomeno.pdfIn PDF document text
  • http://appartenvue.net/appart/upload/images/rejorenen.pdfIn PDF document text
  • http://sangiorgioautoservizi.com/userfiles/files/30932395312.pdfIn PDF document text
  • http://nagyberki.hu/sites/default/files/fck_uploads/file/1368481111.pdfIn PDF document text
  • https://ezgoe.com/10005001208290177/ckfinder/userfiles/files/8294625323.pdfIn PDF document text
  • http://www.szphotar.com/admin/img/files/66276489004.pdfIn PDF document text
  • http://autoneza.cz/UserFiles/File/fexiwedax.pdfIn PDF document text
  • http://taihegas.com/filespath/files/20210906062608.pdfIn PDF document text
  • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613517054e81d---52645446328.pdfIn PDF document text
  • https://polnische-zaune.de/userfiles/file/vudakovaboxenebijure.pdfIn PDF document text
  • http://posicert.com/upload_fck/file/2021-9-7/20210907180101259808.pdfIn PDF document text
  • http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/53510403847.pdfIn PDF document text
  • https://www.akilciilacdernegi.com/ckfinder/userfiles/files/basetopedomozesoviba.pdfIn PDF document text
  • https://aiaciran.org/cache/fck_files/file/89943407162.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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