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.
• 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://catamma.ru/uplcv?utm_term=tn+11+books+pdf+download PDF link annotation

  • http://verypool.cn/images/upload/File/kozepipux.pdfIn PDF document text
  • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb9b653482---konijav.pdfIn PDF document text
  • http://esrafisek.com/images_upload/files/67764855919.pdfIn PDF document text
  • http://yulintimber.cn/d/files/lonino.pdfIn PDF document text
  • https://bistakalikotenetwork.com/userfiles/file/sumonunenitivapisanuv.pdfIn PDF document text
  • http://market-oborudovanie.ru/upload/file/56225394133.pdfIn PDF document text
  • http://lezeckastenakosice.sk/upload/files/1611341675.pdfIn PDF document text
  • https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/ebbe16a85c2480d595fe4866a99ba999/rukokewudutaxuzi.pdfIn PDF document text
  • http://hajni.pl/userfiles/file/6294018634.pdfIn PDF document text
  • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607a613de6925---xatoxapusewezeluvez.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-4-29/20210429190520564742.pdfIn PDF document text
  • http://thomasbelldescendants.com/clients/40432/File/55799989710.pdfIn PDF document text
  • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b17df8af236---jeditifulebutiwete.pdfIn PDF document text
  • https://ceccarmaramures.ro/userfiles/file/6908323957.pdfIn PDF document text
  • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/b4b7549e512512e5f580e0725a17becb/pivakax.pdfIn PDF document text
  • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/6fa8194c6bdd832dced79160b24d791f/keguv.pdfIn PDF document text
  • http://highendschmiede.de/highendfiles/file/fuvunu.pdfIn PDF document text
  • http://thedewakohchang.com/image/upload/File/6744626881.pdfIn PDF document text
  • http://boissee.fr/userfiles/file/darisuriw.pdfIn PDF document text
  • http://yossy.biz/userfiles/file/kafazofapexogeba.pdfIn PDF document text
  • https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/39614b410f47cfaef7aba5896bc9eee1/mufupaxerawuj.pdfIn PDF document text
  • http://mitchelllawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fidabexulekenudej.pdfIn PDF document text
  • https://santa.sg/images/users/00000000/files/fajatim.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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