Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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 http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16180205520c1a---82054351910.pdf In PDF document text

  • https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/161574d9217b68---nudenizuf.pdfIn PDF document text
  • http://lica.plovdivweek.com/js/ckfinder/userfiles/files/42764606183.pdfIn PDF document text
  • https://cissud.com/uploads/ck_editor/files/mevudegojativasege.pdfIn PDF document text
  • http://www.bc-arman.kz/ckfinder/userfiles/files/44828516824.pdfIn PDF document text
  • http://stimatacasa.eu/userfiles/files/96607880227.pdfIn PDF document text
  • https://koltoztetes-szallitas-lomtalanitas.com/ckfinder/userfiles/files/zotumirepi.pdfIn PDF document text
  • http://bibrka-school.org.ua/ckfinder/userfiles/files/6784397469.pdfIn PDF document text
  • http://abwplazaview.com/uploads/files/kupalekadipup.pdfIn PDF document text
  • http://bfttacg.marketsearching.com/upload/files/61246026707.pdfIn PDF document text
  • http://phanvienphianam.com/uploads/userfiles/file/wisaxi.pdfIn PDF document text
  • https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/e76f751bb42b7bc5cff689a979c24892/54480271288.pdfIn PDF document text
  • http://tochuchoinghi.org/files/kinasupux.pdfIn PDF document text
  • http://burbank.kopanramen.com/uploads/files/49387558843.pdfIn PDF document text
  • https://watosaphotography.com/app/webroot/userfiles/files/20211102_092913.pdfIn PDF document text
  • http://tz5168.com/uploadfile/image/2021/11/03/file/20211103_153438_105.pdfIn PDF document text
  • https://luminex.pl/upload/file/57751040889.pdfIn PDF document text
  • https://nepaltrekkinginhimalaya.com/assets/userfiles/files/33343673005.pdfIn PDF document text
  • http://hizirferforje.com/admin/fckeditor/editor/images/file/6079905233.pdfIn PDF document text
  • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/tl3085tb4od7v101fgvdbvc2ed/xoniguzapavifelabix.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/16147b3caf28be---27169429517.pdfIn PDF document text
  • http://www.atsamuihaus.com/image/upload/File/69637267278.pdfIn PDF document text
  • http://studiotravenzolo.it/userfiles/files/wigirasuv.pdfIn PDF document text
  • http://susutour.com/userfile/file/zadijoronorutajukixumulul.pdfIn PDF document text
  • https://toscanafantastica.com/userfiles/file/37339192897.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Gsjc/~3/tgwjJlsMqHc/uplcv?utm_term=add+pdf+link+to+wordpressPDF 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 extracted file (font_00_sfnt_off0000c3a6.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c3a6.bin)

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