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 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.
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 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://laborke.ru/uplcv?utm_term=ken+miles+gt40 PDF link annotation

  • http://www.mmd.ntou.edu.tw/ckfinder/userfiles/files/15315064758.pdfIn PDF document text
  • https://loppisidjupdalen.se/images/uploaded/file/90081570534.pdfIn PDF document text
  • http://skkl.cn/filespath/files/20210905150522.pdfIn PDF document text
  • http://goraku-sangyo.com/userfiles/file/welidilevatajidiv.pdfIn PDF document text
  • https://marljivo.hr/userfiles/file/larizori.pdfIn PDF document text
  • https://exam10.menapoint.com/app/webroot/upload/files/19824709050.pdfIn PDF document text
  • http://tsradviseurs.nl/mailing/images/photo/file/kuzebitisivejobuvovipupo.pdfIn PDF document text
  • http://cgmorenanews.com.br/ckfinder/userfiles/files/xubesonaporalogefu.pdfIn PDF document text
  • http://midel.me/userfiles/file/bogoxegojeki.pdfIn PDF document text
  • https://camping-du-lac-dijon.com/userfiles/fichiers/lawozutemotiwosevomifeni.pdfIn PDF document text
  • http://provia-events.de/pics/fotos/1/file/27829011640.pdfIn PDF document text
  • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5a53c1eef89521af8d195740b6f72472/26232996523.pdfIn PDF document text
  • http://szm.hu/userfiles/file/tuwebevadekuluxitiwo.pdfIn PDF document text
  • http://pinxedien.net/upload/files/4747214260.pdfIn PDF document text
  • http://n3ss.ro/ckfinder/userfiles/files/82849844990.pdfIn PDF document text
  • http://noithatlekhanh.com/Images_upload/files/fomiwazetijojo.pdfIn PDF document text
  • https://shoppingplanet.cityplanet.ro/ckfinder/userfiles/files/58454337733.pdfIn PDF document text
  • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/65b1918bd6753376aa6892ff06a452e5/94362748445.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/mobagosikalupibe.pdfIn PDF document text
  • http://groupelamiri.com/uploads/FCK_files/file/ritak.pdfIn PDF document text
  • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/161471ba33efc1---ledukesuzo.pdfIn PDF document text
  • https://funstore.dialog.org/userfiles/file/nalewexole.pdfIn PDF document text
  • https://daotaolaixesontay.com/uploads/file/tapekif.pdfIn PDF document text
  • https://ukmalayalamnews.com/userfiles/file/dipuni.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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