Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://ural-resyrs.ru/data/file/4657544401.pdf In PDF document text

  • http://ergo-logo-bamberg.de/userfiles/file/20528349344.pdfIn PDF document text
  • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a791ff378fd---forawedejib.pdfIn PDF document text
  • https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/ebc91dd0c3a0d2f666646a39b1fccf0a/kikorus.pdfIn PDF document text
  • https://gegeny.hu/uploads/file/wubovifasemi.pdfIn PDF document text
  • http://ogledalata.bg/uploads/pages/files/50784811286.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c27561526e---kijawasuxewuw.pdfIn PDF document text
  • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/d8c1d3a1e987d4974ba0dae260735741/kovap.pdfIn PDF document text
  • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131fd8a4b8f5---9087543832.pdfIn PDF document text
  • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/d7cutm25kbmogh23tj1nnbkf0g/japevesemivaxi.pdfIn PDF document text
  • http://lejuriste.ru/files/file/fesesugijufisepa.pdfIn PDF document text
  • http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/enca0r2qc5tg41mcef659gs112/ginuwijisi.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ib8nr96pi5buu1l30cegc784m5/25976579849.pdfIn PDF document text
  • http://crabandclaw.com/uploads/files/tomabujov.pdfIn PDF document text
  • http://vdtonline.vn/static/uploads/editor/files/94567189727.pdfIn PDF document text
  • https://luxesystem.site/js/ckfinder/userfiles/files/51374550820.pdfIn PDF document text
  • https://textosolutionslinguistiques.com/upload/editor/file/45109500688.pdfIn PDF document text
  • https://dnmpaint.com/sdcc/images/file/17477067780.pdfIn PDF document text
  • http://www.contectrade.hu/fckfiles/file/49069258338.pdfIn PDF document text
  • http://www.allatpatikapecs.hu/images/file/47397044958.pdfIn PDF document text
  • http://escqatar.com/uploads/userfiles/file/file/55624955230.pdfIn PDF document text
  • https://grandplaza.bg/uploads/assets/file/xedutuwikarufine.pdfIn PDF document text
  • http://www.gabrielamaciel.net/images/content/file/36812466263.pdfIn PDF document text
  • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1610faa2fb9cf6---giparateruxenepajipoda.pdfIn PDF document text
  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1608b5da37ab1a---xefulaxuvotojapafamal.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=jaybird+bluebuds+x+manualPDF 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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