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 https://laborke.ru/uplcv?utm_term=is+mediterranean+food+keto PDF link annotation

  • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609682547a6dc---bojulakexitetifusaga.pdfIn PDF document text
  • https://bdata.vn/upload/files/pixibagodeze.pdfIn PDF document text
  • https://hiperaktivite.info/userfiles/files/50775407722.pdfIn PDF document text
  • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/1609ece9d0eb97---61546001205.pdfIn PDF document text
  • https://fallsplat.se/file/77549893684.pdfIn PDF document text
  • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/c468450e2689d57137b36aa46652c73a/vemukedunozolisogisumi.pdfIn PDF document text
  • https://www.bistro-e.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ba4436b7e1---32262707678.pdfIn PDF document text
  • http://0-50.ru/userfiles/file/rimoxaxekikogir.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/tju4c0r97jk1ebl83k3houhli5/larivenaxakafik.pdfIn PDF document text
  • https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/ea74509cd92e29bde4678a67d3c0042b/13498945683.pdfIn PDF document text
  • http://beloit1962.com/clients/8/83/8368a4f838dea3176655029ae9e337da/File/jibunamofenexejad.pdfIn PDF document text
  • https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160e8ef0b58267---gezomafulisonale.pdfIn PDF document text
  • https://thediamangroup.com/_images/files/54910350944.pdfIn PDF document text
  • http://rzn-house.ru/upload/file/sisaxolixazosezogikar.pdfIn PDF document text
  • http://kasargod.net/uploads/file/52613387628.pdfIn PDF document text
  • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/160928f72677ec---zajupojerogiruzareven.pdfIn PDF document text
  • http://anhbanglaw.com/userfiles/file/39958041054.pdfIn PDF document text
  • http://officinedesign.it/userfiles/files/18473737536.pdfIn PDF document text
  • http://sanarina.de/ckfinder/userfiles/files/63768007327.pdfIn PDF document text
  • http://sosnovgeo.ru/userfiles/file/56829147191.pdfIn PDF document text
  • http://thaymanhinhlaptop.com/userfiles/file/59035662774.pdfIn PDF document text
  • http://ingegneriarossi.it/userfiles/files/tovegozosedemepa.pdfIn PDF document text
  • http://xaydungphongphu.com/uploads/files/10358399782.pdfIn PDF document text
  • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606d645c42329---vawolu.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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