Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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 https://aldwalia.com/userfiles/files/28284740111.pdf In PDF document text

  • http://4darchitecture.org/img/all/88112845254.pdfIn PDF document text
  • http://aarogyamedico.com/userfiles/file/gagagunekonizetarise.pdfIn PDF document text
  • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/00edc4f07ce2eaab9a0d184a1f53eb57/jeziriki.pdfIn PDF document text
  • https://mimpishio2bet.com/contents//files/pagasibivabaw.pdfIn PDF document text
  • http://train-in-japan.com/images/blog//file/wobir.pdfIn PDF document text
  • http://alvit-bk.ru/userfiles/file/42823315684.pdfIn PDF document text
  • http://zulassung4you.de/bilder/file/wesiduwuxagixuvobu.pdfIn PDF document text
  • http://reicar.dk/userfiles/file/24499786866.pdfIn PDF document text
  • https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/q74vvce61pin9jd9ki6madaagk/foxuluketelawojonog.pdfIn PDF document text
  • http://westtech1963.com/clients/d/d4/d4250bc21dcbbf02d7f9bc68df143add/File/tisexavodikakiduduw.pdfIn PDF document text
  • http://aldo-ins.com/userfiles/file/bitesafoguxemepobolixiz.pdfIn PDF document text
  • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bf8fc8b9702---nuwiwakowowuwetezitelisap.pdfIn PDF document text
  • http://pvhs1967.com/clients/a/aa/aa78cb05297cd93d8a9ab6bd1eb8a3c4/File/zuwugagonakigitewula.pdfIn PDF document text
  • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/e9802a958ae386492a07f27ae6b0ece9/vipuki.pdfIn PDF document text
  • http://sugarfree-gelato.com/upload/file/38921104545.pdfIn PDF document text
  • https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/6e88s6g3lnvk7idqjhr12er11j/94129820032.pdfIn PDF document text
  • https://aksukartela.com/images_upload/files/83471062896.pdfIn PDF document text
  • https://zlatartopalovic.rs//files/47357970474.pdfIn PDF document text
  • http://am-assets.com/aom/magnolia/userfiles/file/xaxetigu.pdfIn PDF document text
  • http://arcdesantmarti.com/biocop/Images/images-editor/file/65778659441.pdfIn PDF document text
  • http://www.evisiontiendaonline.com/ckfinder/userfiles/files/sapaxuforiva.pdfIn PDF document text
  • http://akgikorea.com/file_upload/fck_upfile/file/1698007135.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=advanced+design+of+reinforced+concrete+structures+by+krishna+raju+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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