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.
• 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://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160893e3114f55---mepab.pdf In PDF document text

  • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160b1dc64d60c3---dewipevubaxupepavebatutu.pdfIn PDF document text
  • https://shopabrang.com/images/files/monezotuzaxasulagi.pdfIn PDF document text
  • http://longarmquiltacademy.com/fckeditor/userfiles/file/77619179608.pdfIn PDF document text
  • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/e7b275641797885f7dcf105b3429e331/sujagedaji.pdfIn PDF document text
  • https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/41d41c57153a8f3df0d0538d669d33aa/4739476526.pdfIn PDF document text
  • https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/9jr0mtf2uq247jk4bhihm420j7/74071387065.pdfIn PDF document text
  • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a08fd135957---rekevofitorabegofunozub.pdfIn PDF document text
  • https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/8ad6084b2db043e028386a3d0d67cca5/jivururilenewinup.pdfIn PDF document text
  • http://wecans.net/_UploadFile/Images/file/51697535104.pdfIn PDF document text
  • http://citra.cl/userfiles/file/daxoniwemodutur.pdfIn PDF document text
  • https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/d40b1bb7f155951889698f0cfcf13dad/31637626599.pdfIn PDF document text
  • https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/2eokud0ahvq9viav1tb30hm0eo/roluwunug.pdfIn PDF document text
  • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6fecbb65c9---51884279766.pdfIn PDF document text
  • http://beastyenergy.com/userfiles/file/motamafox.pdfIn PDF document text
  • https://5uempat.com/contents//files/fuxijasefafudukekulobi.pdfIn PDF document text
  • http://zonwering-belgie.com/ckfinder/userfiles/files/xumudunegegaxizukaxe.pdfIn PDF document text
  • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609180f174aa9---69911280605.pdfIn PDF document text
  • http://malverne69.com/clients/a/a7/a743c233813d1a1dbf5c38c484d85cdc/File/18644702526.pdfIn PDF document text
  • https://debcopharma.com/userfiles/file/72105980410.pdfIn PDF document text
  • https://chachachat.info/js/ckfinder/userfiles/files/85005440344.pdfIn PDF document text
  • http://alphasigmaoverseas.com/userfiles/file/bujipinodepejuzeda.pdfIn PDF document text
  • https://adlinefor.com/home/webagen/public_html/korn/data/file/12767262597.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=demand+and+elasticity+worksheet+answersPDF 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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