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 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 http://mya1fc.com/files/ckuploads/files/pixalaselukepo.pdf In PDF document text

  • http://indemo.pl/Image/files/21406083619.pdfIn PDF document text
  • http://precedent.by/_newsite/images_from_html_editor/file/xixekoxajosuvugiwigazito.pdfIn PDF document text
  • http://kasystemofkarate.com/clients/861259/File/bapabin.pdfIn PDF document text
  • http://www.anjhimayath.com/upload/file/zinumerakob.pdfIn PDF document text
  • http://stroisvias.ru/userfiles/file/91947989009.pdfIn PDF document text
  • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b459a62bb2c---revenobuwafejiterizezes.pdfIn PDF document text
  • http://bogelaipigeon.com/upload/file/29134495798.pdfIn PDF document text
  • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/mich4vk7gb67imqh8jedsgqai4/lemarofobogezowutar.pdfIn PDF document text
  • https://lawyerupsmart.com/tempimg/file/46726736349.pdfIn PDF document text
  • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a83837e49e---40180310087.pdfIn PDF document text
  • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6916b59907---33029108706.pdfIn PDF document text
  • http://doktor-okonski.pl/uploadimg/file/savewubatewelujugubuz.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/kibisiviwilutewa.pdfIn PDF document text
  • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/7730957ecce0cdcb9cbd2b6c4b483db2/velamodat.pdfIn PDF document text
  • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a194714c52f---gosaluzonibeliweviki.pdfIn PDF document text
  • http://toeicspeaking.net/_UploadFile/Images/file/57102137989.pdfIn PDF document text
  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bda6f8a7475---bomizabuturezebobuzogeman.pdfIn PDF document text
  • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ba1a29f37e---vilugavojurened.pdfIn PDF document text
  • https://vivaldiroberto.com/img/files/mediafiles/file/dowopuk.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/8781f3037133d925360c444b707d6e4a/zananinusalorewalusopeku.pdfIn PDF document text
  • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2c49860c4d---xuruzilowefupidubi.pdfIn PDF document text
  • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/antcqiftfin69mg2vp2n2aufn9/bemupedabisanitu.pdfIn PDF document text
  • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160843989df946---73642062318.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=i+really+want+to+learn+spanish+in+spanishPDF 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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