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 https://crewmak.ru/uplcv?utm_term=assembly+language+master+class+pdf PDF link annotation

  • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/96e6d39a74c1ffbf982725899dc7cfd9/xafesevelalaj.pdfIn PDF document text
  • https://arch.ua/ckfinder/userfiles/files/vararitafotovi.pdfIn PDF document text
  • http://whs1963.com/clients/7/75/758a827d59fb1c2827eec60421ffdc22/File/fererebirifixerenov.pdfIn PDF document text
  • http://magnachip.cn/userfiles/file/20210522144219.pdfIn PDF document text
  • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612782bc430d7---xobazonolavol.pdfIn PDF document text
  • http://fmafirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kixigimulebema.pdfIn PDF document text
  • https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/b97d5e60333300321ca037a847ff12ba/35257444709.pdfIn PDF document text
  • http://ehomerealestate.org/images/file/97359154191.pdfIn PDF document text
  • https://webtechnocrats.com/upload/file/45213882949.pdfIn PDF document text
  • http://status-go.net/gfx/userfiles/files/74130769805.pdfIn PDF document text
  • http://vititanon.com/user_img/files/86836057990.pdfIn PDF document text
  • http://technoauto.jp/js/upload/files/tavanumobasopivo.pdfIn PDF document text
  • http://linpus.com/app/webroot/userfiles/files/58367837844.pdfIn PDF document text
  • http://klpa.net/userData/board/file/15261122473.pdfIn PDF document text
  • http://kirilmazbardak.com/userfiles/file/25024234189.pdfIn PDF document text
  • https://aristi-trap.com/upload/users/files/66471920879.pdfIn PDF document text
  • http://phillipsbricksalumni.com/clients/56168/File/mewowonej.pdfIn PDF document text
  • https://bdata.vn/upload/files/14681040116.pdfIn PDF document text
  • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161236bed3c4a6---lomenotebazaxige.pdfIn PDF document text
  • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/b6b425166b61b78be7b5e35859638d0d/15574628086.pdfIn PDF document text
  • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/3qhtu1kpt378qq1ntm2j104ggj/31396109871.pdfIn PDF document text
  • http://chip-chup.hu/upload/file/99109021994.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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