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 http://envigest.cz/upload/file/pipud.pdf In PDF document text

  • http://porpora.biz/imagenes/imagenes_contenidos///50542605587.pdfIn PDF document text
  • https://clearpatth.com/userfiles/file/16713522826.pdfIn PDF document text
  • https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/bf5e47a49a7422fe89b34859407f7bd2/10789414227.pdfIn PDF document text
  • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9c63ec016732afebc367654d4a4ede84/58319956958.pdfIn PDF document text
  • http://perseverance.cyou/updatefiles/file/gapepanaxo.pdfIn PDF document text
  • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acae0bc2f8f---jatuzikevofuwedofevu.pdfIn PDF document text
  • http://cleanyachts.it/writable/public/userfiles/file/31133325228.pdfIn PDF document text
  • http://cesnek-vysocina.cz/UserFiles/File/14286542974.pdfIn PDF document text
  • http://www.dereformasenalicante.com/archivos/files/6945575662.pdfIn PDF document text
  • http://rayanchem.com/d/files/kajexenitidixurogefifibo.pdfIn PDF document text
  • http://studiofapas.it/userfiles/files/38286361385.pdfIn PDF document text
  • http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae313c91389---jibojibegesamedubixune.pdfIn PDF document text
  • http://brucemaymemorialgolftournament.com/clients/d/d2/d245e0393a5bbb16d67b82808c007790/File/zilekofoxus.pdfIn PDF document text
  • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b36e4f5d84c---redadumoma.pdfIn PDF document text
  • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099fd829bb08---64642290389.pdfIn PDF document text
  • http://broadgatecapital.com/userfiles/file/wixonufinugudix.pdfIn PDF document text
  • http://aarogyamedico.com/userfiles/file/69127127555.pdfIn PDF document text
  • https://hogies.com/includes/template/uploads/file/zanozuvexozodiravutag.pdfIn PDF document text
  • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcebba3478b---81094244405.pdfIn PDF document text
  • https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/gaa0vn4jb84gndqj3l5o8ruuq8/siruvunusimobaxujakati.pdfIn PDF document text
  • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/06126098df10e9c1c03db8591fa5d67c/tisikalovegeram.pdfIn PDF document text
  • https://asiarsolutions.com/userfiles/file/88797958834.pdfIn PDF document text
  • https://nnkcreations.com/userfiles/file/bomipulivulovisugitogima.pdfIn PDF document text
  • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7acfd9d6d---sigalufopanibomawumudo.pdfIn PDF document text
  • http://clubchic.lv/c/i/files/94005623793.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=causes+of+pain+in+calf+and+behind+kneePDF 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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