Malicious PDF — malware analysis report

Heuristics 8

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://catamma.ru/uplcv?utm_term=app+inventor+offline+free+download+for+windows+8 PDF link annotation

  • https://o-dance.com/upload/files/43418002505.pdfIn PDF document text
  • https://rabudiagnostic.com/userfiles/files/pabafofinipibu.pdfIn PDF document text
  • http://nomorecpapmachine.com/userfiles/files/mojosegokewixuwejireliju.pdfIn PDF document text
  • https://canionglobal.com/FCKeditor/file/85107441146.pdfIn PDF document text
  • http://sobinco.cz/ckfinder/userfiles/files/21095468519.pdfIn PDF document text
  • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/d3d8aa67f8fd88673871eeebe548dadf/kasedorav.pdfIn PDF document text
  • http://angelojrobles.com/admin_initial_test/userfiles/file/94184550566.pdfIn PDF document text
  • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16084e5cba129f---dipejafi.pdfIn PDF document text
  • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/h0nitufh607bu7p3mohlpb923r/vesopodisogenomududo.pdfIn PDF document text
  • http://dream-mebel.com/pic/file/fiwir.pdfIn PDF document text
  • https://prosaison.fr/userfiles/files/sedobadixidokiremekuze.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16113bc9680b06---94576477847.pdfIn PDF document text
  • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/a26c9253425e2b206ea3d13ecd82131b/48923216347.pdfIn PDF document text
  • https://apinero.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078cb8f70807---bulemesuditovejo.pdfIn PDF document text
  • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608219603fe6a---90757066336.pdfIn PDF document text
  • http://amphorabeautyclub.com/campannas/file/94507452421.pdfIn PDF document text
  • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/25f69e932f5824ba3332c75002823975/wutir.pdfIn PDF document text
  • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/r55gbnss8bgdjl9eqkjj99dkg0/kalifutizijel.pdfIn PDF document text
  • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/c769f7daf92b9cdcb91a7e0133ca632c/49769380369.pdfIn PDF document text
  • http://abwjefferson.com/uploads/files/58578046609.pdfIn PDF document text
  • https://tavio.ru/files/file/56916099819.pdfIn PDF document text
  • http://paroissedementon.fr/upload/files/xemuz.pdfIn PDF document text
  • http://carsonpokebar.com/uploads/files/dujagufipiwenuwujilegaz.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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