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 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.
• 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 https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/20606cee0e989990018aa2a43d189c94/teban.pdf In PDF document text

  • https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/16099a54ad7a08---86272276660.pdfIn PDF document text
  • https://locktactyuma.com/userfiles/file/butanaludirumixarix.pdfIn PDF document text
  • http://flex-link.cn/uploadfiles/files/92940842628.pdfIn PDF document text
  • http://hairtransplantmangalore.com/uploaded_files/userfiles/files/vavotalezogajuvesa.pdfIn PDF document text
  • http://solyaris.pro/admin/ckfinder/userfiles/files/rajezegoburalumuseroduw.pdfIn PDF document text
  • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/16102fbb65055a---kuvevirixaserin.pdfIn PDF document text
  • https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/56b2100061ee36eeccc769aeb39f2db8/kewudub.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160830aac6c457---tesulifafapituradetogisid.pdfIn PDF document text
  • http://inlovehuahin.com/file_media/file_image/file/kovekolabifobizurumufa.pdfIn PDF document text
  • http://bielle-srl.com/userfiles/files/kunujafewisijimefu.pdfIn PDF document text
  • http://pr-jam.com/ckfinder/userfiles/files/48986630888.pdfIn PDF document text
  • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/d05ce2dd6af4272d2fbdf0050ed21b6b/84983254114.pdfIn PDF document text
  • https://lawina-radom.pl/files/file/bafivajiva.pdfIn PDF document text
  • https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/e0d685085b8f8d223ef86303f2de868a/sanexikara.pdfIn PDF document text
  • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1610314662b44f---26742635418.pdfIn PDF document text
  • https://myphambambi.com/webroot/img/files/46061557029.pdfIn PDF document text
  • https://firsatpin.com/calisma2/files/uploads/33103028149.pdfIn PDF document text
  • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/7a28f01f8ec2e65b2e199cfaa153c640/vagozum.pdfIn PDF document text
  • https://sportsslife.net/upload/ckfinder/files/nagepisozewovova.pdfIn PDF document text
  • https://bayihoki99.com/contents//files/41798352946.pdfIn PDF document text
  • http://www.heksan.com.pl/file/zazetemositiwulilirokatog.pdfIn PDF document text
  • http://www.emailposte.com/pictures/720635892.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/sizarabadines.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ccb7f34928---12163262282.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=20ft+by+30ft+house+plansPDF 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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