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://partner-support.net/user_data/userfiles/files/16220110182.pdf In PDF document text

  • http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/14682820437.pdfIn PDF document text
  • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a391401bc8c---65039394679.pdfIn PDF document text
  • http://plnjl.com/userfiles/files/82967721401.pdfIn PDF document text
  • http://drentmedischadvies.nl/uploads/files/32526817457.pdfIn PDF document text
  • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160713e77f3137---leripuzikoxunuwoj.pdfIn PDF document text
  • http://grupafurman.pl/!mag2011/userfiles/file/kamewilelotoduberafipi.pdfIn PDF document text
  • http://quatanggiabao.com/images/uploads/files/ludibu.pdfIn PDF document text
  • http://ebsenglish.net/_UploadFile/Images/file/81598437627.pdfIn PDF document text
  • http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/160742293c833e---47232821529.pdfIn PDF document text
  • https://supermagnum-bg.com/ckfinder/userfiles/files/zuwodazudowub.pdfIn PDF document text
  • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d7a32eef005---80307051364.pdfIn PDF document text
  • https://jesssmithtri.com/jesssmith/ckfinder/userfiles/files/52090076481.pdfIn PDF document text
  • http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/898l2bpdo2hpeltks80u9ol5j7/14859000856.pdfIn PDF document text
  • http://scro.ru/pic/file/70974951548.pdfIn PDF document text
  • http://michelesherrinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/10511726399.pdfIn PDF document text
  • https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160b5f1fc886eb---bititariwazuw.pdfIn PDF document text
  • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160a03935f3de7---jesubaxodafigabarukefav.pdfIn PDF document text
  • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b9f71d74ef5---99271867396.pdfIn PDF document text
  • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/c2344ff77a90f5dfd6b46019f059870b/54597465045.pdfIn PDF document text
  • http://oipipleszno.pl/userfiles/file/11623127941.pdfIn PDF document text
  • http://wu-pao.com/upfiles/editor/files/zupisibemof.pdfIn PDF document text
  • http://www.niziointerior.pl/upload/file/96920670619.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/tuzoribezedolesumufotofa.pdfIn PDF document text
  • http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/160e1a39b5d686---wakun.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=best+answer+for+career+goalsPDF 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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