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
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://synerhu.ru/uplcv?utm_term=traffic+rider+pc+game+download PDF link annotation

  • http://iberryhomemade.com/userfiles/files/95133174975.pdfIn PDF document text
  • http://joy05.com/_UploadFile/Images/file/dowixuto.pdfIn PDF document text
  • https://mahanakhon.pacedev.com/ckupload/files/xomigofuwudojusu.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614177d17a125---70479890717.pdfIn PDF document text
  • https://www.hkha.org/ckfinder/userfiles/files/vegadujijisalol.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613301f5739c4---tetodepaji.pdfIn PDF document text
  • http://duocthientam.com/uploads/ckfinder/files/gaxexezif.pdfIn PDF document text
  • https://onecre.com/images/content/files/58837926097.pdfIn PDF document text
  • http://phutunggiahungoto.com/uploads/files/luxixebam.pdfIn PDF document text
  • http://buyyoutubecomments.com/ci/userfiles/files/vudaguwiwaxibek.pdfIn PDF document text
  • http://www.ujepites.hu/userfiles/files/mosat.pdfIn PDF document text
  • https://rajatotogroup3.com/contents/files/wezepa.pdfIn PDF document text
  • http://denda.co.kr/ckfinder/userfiles/files/zexalabuvimaxipuzitiludu.pdfIn PDF document text
  • http://k12kos.com/ckfinder/userfiles/files/71647104874.pdfIn PDF document text
  • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e985d3b705---89373568732.pdfIn PDF document text
  • http://35ct1.com/images/ckImageFiles/files/59800773380.pdfIn PDF document text
  • http://e-park.es/img/uploads/files/19646067663.pdfIn PDF document text
  • http://lnhaihui.com/userfiles/file/20210909172246_2099082502.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/7a69e7fd916c303859fc921b15eb066f/gasolivenofe.pdfIn PDF document text
  • https://kolegium.inaheart.org/upload/files/69441361567.pdfIn PDF document text
  • http://bagliodeimille.it/userfiles/files/xelevopenubanopigaxinil.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/85680171480.pdfIn PDF document text
  • http://perlawarmii.pl/userfiles/file/zakozobebiwaxudibalojez.pdfIn PDF document text
  • https://avukatwebsitesi.kocgrafik.net/upload/files/69320290718.pdfIn PDF document text
  • https://tes-sys.com/uploads/ckfinder/files/20210906/16309423136621.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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