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://infrive.ru/uplcv?utm_term=prescott+microbiology+10th+edition+download+pdf PDF link annotation

  • http://terezszilvia.com/images/uploaded/file/24410162802.pdfIn PDF document text
  • http://ecolservizinettuno.com/userfiles/files/kewijexisetemarufuxiw.pdfIn PDF document text
  • https://hotelite.in/userfiles/file/vuzalaniluferogifew.pdfIn PDF document text
  • https://abcelectricalonlineshop.brilliantwebtech.com/userfiles/files/darajajugevesab.pdfIn PDF document text
  • http://teranor.com/ckfinder/userfiles/files/8692757750.pdfIn PDF document text
  • http://thunderstar.cn/userfiles/file/20210906124835622991283.pdfIn PDF document text
  • https://gogift-it.com/userfiles/files/pafepisijovinok.pdfIn PDF document text
  • http://zonwering-belgie.eu/ckfinder/userfiles/files/57407098287.pdfIn PDF document text
  • https://viboot.traigiongthuha.com/ckfinder/userfiles/files/66044721354.pdfIn PDF document text
  • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/9da76724c3506123b58e9618c24b9ed5/45479151410.pdfIn PDF document text
  • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/161337c53d38cb---jinezagapunato.pdfIn PDF document text
  • http://studiosantese.eu/userfiles/files/dosobiwopeweta.pdfIn PDF document text
  • http://ekmeta.lt/failai/file/videla.pdfIn PDF document text
  • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/1de74120476b7b9f9cea10b7f13de16f/27318738929.pdfIn PDF document text
  • https://airbays.com/userfiles/file/53901926383.pdfIn PDF document text
  • http://jedzenie365.pl/ckfinder/userfiles/files/sutarojipa.pdfIn PDF document text
  • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613783a3948fb---41603120259.pdfIn PDF document text
  • https://www.pessin-location.fr/ckfinder/userfiles/files/81502791088.pdfIn PDF document text
  • http://bpabv.nl/uploadfiles/file/lapibubozofi.pdfIn PDF document text
  • http://webs123.com/userfiles/file/zujufujoluxejeporifib.pdfIn PDF document text
  • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16130f61d9952c---7842507912.pdfIn PDF document text
  • http://xn--80aafbanafwvcftiqfecrg2a.xn--p1ai/pict/file/31963749766.pdfIn PDF document text
  • http://web-news.eu/www/pkpar/userfiles/file/88007965305.pdfIn PDF document text
  • https://saleskerala.com/ckfinder/userfiles/files/18727741727.pdfIn PDF document text
  • http://webcertain.ca/contentupload/fckeditorUploads/organization_/file/letumujedulirexaxeluz.pdfIn PDF document text
  • http://opersan.com/file/wisesubewuvalafakisafe.pdfIn PDF document text
  • http://lifo-sea.com/ckfinder/userfiles/files/48538905200.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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