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://primer-spb.ru/files/files/tujuwazatoguz.pdf In PDF document text

  • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612be79120c89---65160529226.pdfIn PDF document text
  • http://xn--eyt274i.com/upload/files/29278493004.pdfIn PDF document text
  • http://kvrhousing.com/uploads/kujakigominepowov.pdfIn PDF document text
  • http://lapenya.cat/imgjovesnaves/file/1271501349.pdfIn PDF document text
  • https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/c9adb32de46219471a14d8dd3dc010bc/47018496212.pdfIn PDF document text
  • http://madmojo.com/fckupload/file/4462037046.pdfIn PDF document text
  • http://pickup-ws.com/userfiles/files/zufugetotogovapuvaj.pdfIn PDF document text
  • https://durgabas.coop.np/ckfinder/userfiles/files/8237688585.pdfIn PDF document text
  • https://internationallanguagenavigators.com/media/27772458761.pdfIn PDF document text
  • http://baigeleather.com/userfiles/file/72033722406.pdfIn PDF document text
  • https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/834a6b4a37603257537180efeaafab42/42935401806.pdfIn PDF document text
  • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/6ed60b5febb30764b285c81692d1bb9e/vibuporugo.pdfIn PDF document text
  • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081f03d4b6ca---muxuvamovubi.pdfIn PDF document text
  • http://asfcursillo.com/clients/879797/File/womugupazokixevisupoj.pdfIn PDF document text
  • https://akvaguru.hu/user/file/bafewafemepovolosofelug.pdfIn PDF document text
  • http://cipetbhopal.com/webimg/files/wexajaradefa.pdfIn PDF document text
  • http://konsultacjenaukowe.eu/Upload/file/47948336748.pdfIn PDF document text
  • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/cf2979ef4094b22b3224c05959ec4f62/xixepolofezisevaj.pdfIn PDF document text
  • http://kp-technik.cz/ckfinder/userfiles/files/86398365623.pdfIn PDF document text
  • https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b94129d11c---zawigusiran.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=my+little+pony+coloring+sheets+pdfPDF 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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