Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://ketchas.ru/uplcv?utm_term=problemas+de+aritmetica+resueltos+paso+a+paso PDF link annotation

  • http://arabic.cz/ckfinder/userfiles/files/96400917659.pdfIn PDF document text
  • https://bonafideonline.com.ar/wp-content/plugins/super-forms/uploads/php/files/f76e34d856e4dbc3747200c9aa27c1bd/xigixekutanajujoxe.pdfIn PDF document text
  • https://2acontractor.it/images/file/koborovisejewivedobula.pdfIn PDF document text
  • http://wooshin.kr/uploaded/file/173739438260adee2cd604b.pdfIn PDF document text
  • https://saint-florentin.charcutier-traiteur.fr/ckfinder/userfiles/files/rukorinevitikow.pdfIn PDF document text
  • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c10f73ad7c3---silixedetebokiresaxut.pdfIn PDF document text
  • https://ubk-sad.de/azubi/userfiles/files/niwoguwetifapepid.pdfIn PDF document text
  • https://couvreur-hautdoubs.fr/internet_new/images_et_fichiers//file/12539881972.pdfIn PDF document text
  • http://asirakademi.com/resimler/files/vamobamokutubudunedeg.pdfIn PDF document text
  • http://accomplishtheimpossible.com/userfiles_ati/file/38361530110.pdfIn PDF document text
  • http://araonline.hu/uploads/file/64001630031.pdfIn PDF document text
  • http://jonkmp.nl/img/cms/file/45282741327.pdfIn PDF document text
  • http://nuestratierrapremios.com/campannas/file/37734961991.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/caac2333edafe4fd8666b571c26412ba/topizaxopozul.pdfIn PDF document text
  • http://gospel-pour-100-voix.com/fichiers/newsletter/file/xotomifewugatakerupos.pdfIn PDF document text
  • https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/7255eda3184f369e6db533366c153ef4/34592589199.pdfIn PDF document text
  • http://plncse.hu/php_data/file/16649551739.pdfIn PDF document text
  • https://biovuspharma.net/userfiles/files/75365132794.pdfIn PDF document text
  • http://www.aqsclimited.com/EditorImages/file/2972574515.pdfIn PDF document text
  • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/b90b5a40946e6b9fca74dbe59c6c5801/pituvijis.pdfIn PDF document text
  • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a6a3d8df8e0---94565369888.pdfIn PDF document text
  • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085e9b59f848---bexaramon.pdfIn PDF document text
  • http://iburgisidimarsala.eu/userfiles/files/zemawexijufitetuxejo.pdfIn PDF document text
  • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dc6c6b6e02---babufumu.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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