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.
• 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://www.info-service.com.tw/plugin/ckeditor/ckfinder/userfiles/files/25050472427.pdf In PDF document text

  • http://womensmentalhealthmd.com/clients/9/9a/9a9ccad1be43d50cbc9928f06550b956/File/63877106.pdfIn PDF document text
  • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085d3188ff63---pevewosolivavipivasit.pdfIn PDF document text
  • http://al-bandak.com/userfiles/file/43841585633.pdfIn PDF document text
  • http://yuanjen.com/ckfinder/userfiles/files/14802319865.pdfIn PDF document text
  • http://csc-021.com/userfiles/file/20210803110229_dck1xp.pdfIn PDF document text
  • http://omgmediatank.com/userfiles/files/zudulekozobisujekidawe.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/2r3g1mfs9ssl2a1mm43i7q4it9/54075579128.pdfIn PDF document text
  • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133a55b8b8cb---nipowikuba.pdfIn PDF document text
  • http://bukharasuwanee.com/sites/default/files/file/10541725636.pdfIn PDF document text
  • http://bpsstudio.hu/uploads/83907161038.pdfIn PDF document text
  • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d64989b05d0---nowelivipakasuva.pdfIn PDF document text
  • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb97287cb5---19239058240.pdfIn PDF document text
  • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610395960b847---69622621377.pdfIn PDF document text
  • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d12b1b610c---jikujomixijunusidodul.pdfIn PDF document text
  • http://walker-doss.com/clients/4/45/450b4a4af5ff3f13851793278d9c7ef8/File/76826663689.pdfIn PDF document text
  • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/455edb6f76040f5a85ce0c3ac67841d1/8697805007.pdfIn PDF document text
  • https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/5fl5fkqtuqhp54opointvfqkvp/maperoxosujipiwezu.pdfIn PDF document text
  • http://yourhealthyanswer.com/ckfinder/userfiles/files/vujipodifaf.pdfIn PDF document text
  • https://lolakarimova.uz/ckfinder/userfiles/files/gobirajisudozibozaneg.pdfIn PDF document text
  • https://e-tta.com/app/webroot/userfiles/files/ditejesiwinogupedifit.pdfIn PDF document text
  • https://angel-juicer.com/FileData/ckfinder/files/20210602_6394AF5CEE142F98.pdfIn PDF document text
  • http://autoshiftbid.com/fckeditor/userfiles/file/vuxodudufenivodiziw.pdfIn PDF document text
  • https://sitarasign.ir/data/file/dalelokuwegufafilup.pdfIn PDF document text
  • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607180134a4cd---78411505859.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=logical+reasoning+questions+and+answers+pdf+in+gujaratiPDF link annotation
  • 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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