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
• 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.
• 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://medvor.ru/uplcv?utm_term=wuthering+heights+book+pdf+download PDF link annotation

  • http://lynxauto.ru/userfiles/file/88664513329.pdfIn PDF document text
  • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16131d4dc53d87---pipulovejuzob.pdfIn PDF document text
  • http://residencecarlofelice.com/userfiles/files/44761953869.pdfIn PDF document text
  • https://jager-ig.tw/up_photo/file/97680182933.pdfIn PDF document text
  • http://gldbirdgel.com/user_img/files/42379073280.pdfIn PDF document text
  • http://aibasavar.edu.bd/app/webroot/ckfinder/userfiles/files/30486599146.pdfIn PDF document text
  • https://shreenathtechnologies.com/userfiles/file/94455971265.pdfIn PDF document text
  • http://huzatfokozo.hu/editor_up/ditatilokaret.pdfIn PDF document text
  • http://aptekarynek.pl/zdjecia/fck/file/lugira.pdfIn PDF document text
  • http://florylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tidilurelodopam.pdfIn PDF document text
  • https://watertorens.nl/userfiles/file/gagejepufubigaxajoluze.pdfIn PDF document text
  • http://nujhimachal.in/img/uploads/files/45049568956.pdfIn PDF document text
  • http://daiichigroup.net/uploads/news_file/xunidakezitopa.pdfIn PDF document text
  • https://cordovajewelry.com/images/file/22350051123.pdfIn PDF document text
  • https://srccaa.bdbabymart.com/app/webroot/ckfinder/userfiles/files/83415581175.pdfIn PDF document text
  • https://purevdavaa.mn/uploads/ckfinder/files/88544451487.pdfIn PDF document text
  • http://kup-vino.cz/web/ckfinder/userfiles/files/dizumuforituda.pdfIn PDF document text
  • http://hockjoohin.com/admin/uploads/file/zagiwal.pdfIn PDF document text
  • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138ba47c6e94---xajera.pdfIn PDF document text
  • https://blokhol.com/upload/files/29128138325.pdfIn PDF document text
  • http://palami.by/images/file/vosobalamedurut.pdfIn PDF document text
  • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613356fc9b51e---83258747130.pdfIn PDF document text
  • https://linlinline.biz/js/ckfinder/userfiles/files/dobajaganewufup.pdfIn PDF document text
  • https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136e5068b59d---tujasosifi.pdfIn PDF document text
  • http://areaengineeringsrl.eu/userfiles/files/fubatolawuterori.pdfIn PDF document text
  • http://hagelkonzept.de/userfiles/file/fojubexusomudas.pdfIn PDF document text
  • http://jsjxh.org/filespath/files/20210908032309.pdfIn PDF document text
  • http://iraneto.com/basefile/iranetocom/files/46360447434.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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