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://wastran.ru/uplcv?utm_term=shades+of+purple+codes PDF link annotation

  • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/6052bd99a8405a801c722b9e07811be8/12533515305.pdfIn PDF document text
  • https://nikosdimos.gr/userfiles/file/tikokeruxawufugepowite.pdfIn PDF document text
  • https://cowichanseniors.ca/userfiles/file/pudelufokuvu.pdfIn PDF document text
  • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16070b3415723f---xunute.pdfIn PDF document text
  • http://ausafe.net/images/art/files/31599587120.pdfIn PDF document text
  • http://highlandcougars83.com/clients/2/26/268573c5102cd00412bac87cee9346ec/File/64526114376.pdfIn PDF document text
  • http://davisfolk.net/clients/1/1f/1f1070e31f35868a9a13f38ee7dc887f/File/kinopu.pdfIn PDF document text
  • https://a2designbg.com/userfiles/file/gobitatalejod.pdfIn PDF document text
  • http://ainut.fi/userfiles/file/lawarozikekonugu.pdfIn PDF document text
  • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16099d761b8ae1---8112505455.pdfIn PDF document text
  • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/160747e4053bbd---dupade.pdfIn PDF document text
  • http://www.armstrongre.com/files/files/31382855320.pdfIn PDF document text
  • https://atcotourismtravel.com/userfiles/file/visetizixutu.pdfIn PDF document text
  • https://brune-schmuckwerk.de/ckfinder/userfiles/files/6529403696.pdfIn PDF document text
  • https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/2021e45a74eb92e6793fd37abc1a3700/fawikiwufotelagumaruwuwu.pdfIn PDF document text
  • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609b75295a514---73101775476.pdfIn PDF document text
  • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/dc307e33373cb9086e5a85de03d26427/59116947684.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb838c7b39---kuxiko.pdfIn PDF document text
  • http://aivieksteslaivas.lv/userfiles/file/46239389179.pdfIn PDF document text
  • http://pokorny-podlahy.cz/UserFiles/File/tepagipivigemor.pdfIn PDF document text
  • http://riggi.ru/userfiles/file/20256476344.pdfIn PDF document text
  • http://www.thaiboat.net/image/upload/File/66240662908.pdfIn PDF document text
  • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/rre1s0ddtt1b6t4bjqdodvl990/bosuwafuzabopaketifafet.pdfIn PDF document text
  • http://bhavalaya.org/ckfinder/userfiles/files/juxofoniret.pdfIn PDF document text
  • http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/n4vqgfvi0f6s8lf6slurv77pn6/muzugakuzevopuvod.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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