Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://pistant.ru/uplcv?utm_term=notepad%2B%2B+plugin+manager+manual+install PDF link annotation

  • https://jordan.si/dokumenti/file/82515979063.pdfIn PDF document text
  • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1607542abf0b17---murogasebe.pdfIn PDF document text
  • https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/fa28ec017c26ac34442c22021ed84858/pixelujotezaxuguki.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a49d311e9e3---23064028426.pdfIn PDF document text
  • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4635b21425---dobavaguj.pdfIn PDF document text
  • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/56aqo5hnp5br9cshvaov55immb/begasurifubop.pdfIn PDF document text
  • http://flemisterbauldingfamily.com/clients/8/82/82a21d9598fc66f9117a8fb7222c8fd0/File/tefuj.pdfIn PDF document text
  • http://fujavietnam.com/images/Download/xoroworomubizuzolafo.pdfIn PDF document text
  • http://vieclamquantri.net/upload/files/domipeburilinaka.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e8c31caa6---pebuwelabopakesidebami.pdfIn PDF document text
  • http://codemessaging.net/ckfinder/userfiles/files/vaduwuzove.pdfIn PDF document text
  • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610821435126c---93244618946.pdfIn PDF document text
  • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e1598e7470d---tukimugojeveguguludedogev.pdfIn PDF document text
  • https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/9c2b1879bf95896659a755727ae57c45/88602091772.pdfIn PDF document text
  • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e91bae4412---56201621965.pdfIn PDF document text
  • https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/5711439332.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/85412873632.pdfIn PDF document text
  • https://kochitaxirental.com/ckfinder/userfiles/files/48959738522.pdfIn PDF document text
  • http://wfuchiomega.com/clients/4/46/46a815049f9cfb11ab63b386d19cdfb8/File/kazuponibozaroxodenavevan.pdfIn PDF document text
  • http://pi-consulting.ch/download/62804098023.pdfIn PDF document text
  • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/2583d07fd6a46a42fe49772aced2196f/gonuxofeboni.pdfIn PDF document text
  • http://smartwealthhk.com/userfiles/21862383355.pdfIn PDF document text
  • https://wietsevoermans.nl/ckfinder/userfiles/files/20822169244.pdfIn PDF document text
  • https://lionkingbali.com/uploads/file/pisozesuwefu.pdfIn PDF document text
  • https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/bed6b63c5e8433a924e0490361305d99/xiwojiwogitezife.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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