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://synerhu.ru/uplcv?utm_term=pearson+mymathlab+precalculus+answer+key PDF link annotation

  • http://poorclarescork.ie/images/70746455055.pdfIn PDF document text
  • https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/5668064bd8fadb6f656704f7cce2bfe8/jezidoran.pdfIn PDF document text
  • https://praward.tw/wp-content/plugins/super-forms/uploads/php/files/b99dde2a88f341d292a361116beb22df/pagoxoz.pdfIn PDF document text
  • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/103de077642242db0e674f3a2f7fdd3a/89567153116.pdfIn PDF document text
  • https://ldoris.com/upfile/files/20210703153323.pdfIn PDF document text
  • http://autofactory-jin.com/js/upload/files/66733814458.pdfIn PDF document text
  • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b48a97e2bae---26819387352.pdfIn PDF document text
  • http://auburn-properties.com/userfiles/files/42857419785.pdfIn PDF document text
  • http://hi-reid-solutions.com/wp-content/plugins/super-forms/uploads/php/files/a8840cef93f00a6b579a609d6a5befe8/tofepawozubavideligivodo.pdfIn PDF document text
  • http://flywings.sk/UserFiles/file/18023126384.pdfIn PDF document text
  • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/7bbd736e491fd5453053be4877c760f1/56319168581.pdfIn PDF document text
  • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/tsre56v72kfk1hlpdj077ltqd0/wegovabavejiladix.pdfIn PDF document text
  • http://jr-bang.com/uploadfiles/20210723100405.pdfIn PDF document text
  • http://wumag.pl/userfiles/file/48340180591.pdfIn PDF document text
  • http://ingegneriarossi.it/userfiles/files/retoposo.pdfIn PDF document text
  • https://thewaves.net/wp-content/plugins/super-forms/uploads/php/files/998t61nrrml7to5vhsvtomfnc4/84791011125.pdfIn PDF document text
  • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/av5gcrm1bssethnphmu3ugqmm7/94335679095.pdfIn PDF document text
  • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c346497d197---54924822755.pdfIn PDF document text
  • https://sasalidayanisma.org/uploads/file/lotefobiduwavirosa.pdfIn PDF document text
  • http://esoftland.com/userfiles/file/gazivutuvakopiwifikijeg.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1608d941478a87---xexafisizexu.pdfIn PDF document text
  • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/1606ee53873fdfc576bce1f3e1e92be4/megewisuzeke.pdfIn PDF document text
  • http://katachizu.com/img/news/files/libofupogolozijalibejun.pdfIn PDF document text
  • https://fizjolech.pl/userfiles/file/pitovomipi.pdfIn PDF document text
  • https://koratspring.com/upload/file/nefavabak.pdfIn PDF document text
  • http://mundori.com/js/ckfinder/userfiles/files/dufelevuxokepediguboruxus.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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