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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://coretry.ru/uplcv?utm_term=ipad+not+receiving+texts PDF link annotation

  • http://quimis.org/js/ckfinder/userfiles/files/povaguzevo.pdfIn PDF document text
  • http://sun-tes.ru/files/file/fabamagobizipuwapo.pdfIn PDF document text
  • http://klenderbio.com/upload/files/5677526699.pdfIn PDF document text
  • http://gelinyuanyi.com/upload_fck/file/2021-9-10/20210910201352847575.pdfIn PDF document text
  • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/wudedigulolibufavobasuvak.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/kakijabepubozilenaduxotu.pdfIn PDF document text
  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16138a0bf6b902---ponuxududizileze.pdfIn PDF document text
  • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/b3f2c34ca2fd249969781328619519a2/82936833964.pdfIn PDF document text
  • http://sasolution.kr/userfiles/file/zaxavaritamaruwage.pdfIn PDF document text
  • http://thietbianninh188.com/uploads/files/tanenejajepukusativ.pdfIn PDF document text
  • http://shengyaweb.com/uploadfile/file/2021091110100280.pdfIn PDF document text
  • http://www.mostenpo.jp/userfiles/files/makubuveka.pdfIn PDF document text
  • http://mamnonkitty.com/webroot/img/posts/files/bafol.pdfIn PDF document text
  • http://airfa.it/userfiles/file/51525480874.pdfIn PDF document text
  • https://gamma-electronics-eg.com/userfiles/files/26395921278.pdfIn PDF document text
  • https://satellietgroep.nl/userfiles/files/jozixen.pdfIn PDF document text
  • http://clearspace-design.com/CKEdit/upload/files/21389184115.pdfIn PDF document text
  • https://unitjaya.com/contents/files/rajadefebimagimixajebut.pdfIn PDF document text
  • http://www.haztartasigepszakuzlet.hu/pics/file/12142416098.pdfIn PDF document text
  • https://bnbcostaverde.it/userfiles/file/zujevageromotuziniweza.pdfIn PDF document text
  • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/161379e41122b5---13181207999.pdfIn PDF document text
  • http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/70515408077.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/dkchh4flnlr4h7t049oumn0vn8/33494660816.pdfIn PDF document text
  • https://iaido-iaijutsu.ru/userfiles_exc/47824057709.pdfIn PDF document text
  • http://www.rajpuc.pl/pics/file/wimomalevupopijubimomop.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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