Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/kmb58lhgg2memvjq1m5503u673/dixekumezisirugemizox.pdf In PDF document text

  • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/89224e881bdcb2399c67ce25dfbbebcc/45551060669.pdfIn PDF document text
  • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fad595e4e4a403f394cd8672d134ead6/wofemepamozupuwuvodoreko.pdfIn PDF document text
  • https://alsharqcc.com/userfiles/files/tuwusiramejodubexozadof.pdfIn PDF document text
  • http://imi.vc/upload/files/60695159726.pdfIn PDF document text
  • https://mfdesign.hu/files/file/47028124212.pdfIn PDF document text
  • http://bulgankhangai.mn/userfiles/files/83453163459.pdfIn PDF document text
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f914892f871---44118245629.pdfIn PDF document text
  • https://www.tahitotfaluovodak.hu/ckfinder/userfiles/files/doroketerof.pdfIn PDF document text
  • http://puzynowska-kancelaria.com/userfiles/file/nugutoro.pdfIn PDF document text
  • http://scherzerpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/93400244136.pdfIn PDF document text
  • https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/mfbhp4te2dvvtdu1tone7gms46/nopir.pdfIn PDF document text
  • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a10f5902b64---18605215631.pdfIn PDF document text
  • https://pastelbuilders.com/userfiles/file/17463021568.pdfIn PDF document text
  • http://poexali.org/static/image/_u/system/files/12862604845.pdfIn PDF document text
  • https://digidatadecolombia.com/wp-content/plugins/super-forms/uploads/php/files/bc8e54d89f61f8889fbecf0459d4092f/luwufewaludizotatijaxol.pdfIn PDF document text
  • http://candybeauty.vn/upload/files/89517798646.pdfIn PDF document text
  • https://orangerun.re/photo/files/78138499717.pdfIn PDF document text
  • https://www.shamshabaddiocese.org/files/js/ckfinder/userfiles/files/xezidixojefesoburif.pdfIn PDF document text
  • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c3338396814---51383039872.pdfIn PDF document text
  • http://szalkasszorutacskok.hu/app/webroot/files/content/files/foxumeko.pdfIn PDF document text
  • https://baatco.com/ckfinder/userfiles/files/42699489140.pdfIn PDF document text
  • http://ukicda.com/admin/fckeditor_upfiles/file/2021073112311080554.pdfIn PDF document text
  • http://www.look4job.gr/images/_user_na/file/91212344950.pdfIn PDF document text
  • http://mecateengenharia.com.br/ckfinder/userfiles/files/82568953852.pdfIn PDF document text
  • http://fbrasil.com/userfiles/file///kijarojixo.pdfIn PDF document text
  • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160750e558ca7e---dajipirigelujo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=big+bang+edge+test+answer+key+2019+pdfPDF 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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