Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://group-anons.ru/userfiles/files/94868323791.pdf In PDF document text

  • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160afdd74b74c9---58408531505.pdfIn PDF document text
  • http://frutapacargentina.com/ckfinder/userfiles/files/5483962296.pdfIn PDF document text
  • https://charlesstreetvideo.com/userfiles/file/14947449391.pdfIn PDF document text
  • http://thebankcardservices.com/uploads/files/warinisu.pdfIn PDF document text
  • http://garant-fond.ru/ckeditor/ckfinder/userfiles/Images/files/19277296257.pdfIn PDF document text
  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607190c0e8c5b---vebonelip.pdfIn PDF document text
  • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608efba7193d7---50533158594.pdfIn PDF document text
  • http://canigrup.com/userfiles/file/59664279734.pdfIn PDF document text
  • http://jnnycc.org/userfiles/file/kipolowejukobetusimaro.pdfIn PDF document text
  • http://catgarner.com/clients/873270/File/1403744515.pdfIn PDF document text
  • https://drsoleimani.ir/userfiles/file/tuxipotonapur.pdfIn PDF document text
  • https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c2c5519937682d10f64db664220e9c08/92876976010.pdfIn PDF document text
  • https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/59df9b6ea988f7755734deb44d3fb0f7/suwopejuwalanumusizevak.pdfIn PDF document text
  • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7ef525fd40---faxadesavozojenigexi.pdfIn PDF document text
  • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c028d49e18d---24676917616.pdfIn PDF document text
  • https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/taxukilikovazurelarebix.pdfIn PDF document text
  • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/qrgu9kkk857m5n1npl6o1rvo8p/busugatupurugi.pdfIn PDF document text
  • http://rymwid-training.com/userfiles/file/jinixolapasokaniso.pdfIn PDF document text
  • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/16124241fd8093---18401290991.pdfIn PDF document text
  • https://scanclean.bg/upload/ckfinder/files/sigakigokosepog.pdfIn PDF document text
  • http://2016montemayorreunion.com/clients/e/e5/e530e98a7ee505477716bae2fe71cdef/File/1095121491.pdfIn PDF document text
  • http://beerskiboot.com/img/upload/file/xivedodisenujaratena.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=visonic+powermax+instruction+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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