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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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 http://www.tamtrebinhminh.com/public/files/josirisibegizetofer.pdf In PDF document text

  • https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/8ca78b5006a8580dbeba425c0f29c00d/74673341772.pdfIn PDF document text
  • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd0f9d6bf29---lupokebitobinon.pdfIn PDF document text
  • http://carmakers.cz/userfiles/files/68912609093.pdfIn PDF document text
  • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a843cce9972---72688118650.pdfIn PDF document text
  • https://aldapa.eus/files/galeria/files/xitawut.pdfIn PDF document text
  • http://personal.sut.ac.th/chantira/port/ckfinder/userfiles//files/wukejuzirovebo.pdfIn PDF document text
  • https://best-label.com/upload/files/34741575283.pdfIn PDF document text
  • http://henghuitong.com/jingkelun/userfiles/files/20210621040011.pdfIn PDF document text
  • https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/c07ecefd615b979dc70c27e43a10ec0a/1621916839.pdfIn PDF document text
  • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16124e58fb6d0e---43394535040.pdfIn PDF document text
  • http://medipharmacompany.com/userfiles/files/29522091893.pdfIn PDF document text
  • http://secureyun.cn/uploadfile/file///2021072315270873.pdfIn PDF document text
  • https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/7a7ab07f20244a082959e95a9ada5fc1/46798655386.pdfIn PDF document text
  • https://lose-weight.tw/upload/files/23655816094.pdfIn PDF document text
  • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/82c6f6977f7b55a59d8cac7ede8addfc/93048788106.pdfIn PDF document text
  • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/iapnp56imkokcq4jf5cngkd4bs/88494000046.pdfIn PDF document text
  • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/o3upjjfuojfsksv429mfn9kor6/kizodib.pdfIn PDF document text
  • http://sgrappresentanze.eu/userfiles/files/siderutizejitujoseb.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/l41chkntvd6jbn57plpk34n1d5/30081053713.pdfIn PDF document text
  • http://lindendirect.com/ckfinder/userfiles/files/33761489200.pdfIn PDF document text
  • http://franceplus.fr/userfiles/file/lasuvogufusexiberemaben.pdfIn PDF document text
  • http://bestbelly.org/content/files/files/48183586841.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=sylvania+bluetooth+speaker+sp5776+manualPDF 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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