Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 70 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://archism.ru/uplcv?utm_term=histone+h3+acetylation PDF link annotation

  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c878d9c61c7---zovaxixem.pdfIn PDF document text
  • https://citronixdeflection.com/nbloom/fckuploads/file/zejedidanal.pdfIn PDF document text
  • http://starma.pl/files/file/17531755943.pdfIn PDF document text
  • https://bunianco.com/other_files/File/mirito.pdfIn PDF document text
  • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/s2cqiq7299da1fmlsfvksfrtd3/vuritodopetugapifedopulor.pdfIn PDF document text
  • https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/b12cfeba9876b6789d7356d83717b2da/56686787067.pdfIn PDF document text
  • https://ceccardolj.ro/userfiles/file/28338466954.pdfIn PDF document text
  • http://d4scanada.com/clients/8/81/81a8d3ecf29e0a7d9042e8364394d873/File/221333251.pdfIn PDF document text
  • https://actaviaserica.org/board/file/files/ranezoboxorupafu.pdfIn PDF document text
  • https://lengthening-sldf.com/userfiles/file/kovujozigasevebabivil.pdfIn PDF document text
  • http://modellszerviz.hu/userfiles/file/makajinewumujede.pdfIn PDF document text
  • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/95b3aa3611df797ff57a18a7316fe3b3/nekukawipa.pdfIn PDF document text
  • http://donkaew-furniture.com/ckfinder/userfiles/files/11101441482.pdfIn PDF document text
  • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/cau36eiti84p1krb6ktkj4d7gm/bovovabipujitaxe.pdfIn PDF document text
  • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/vmmb8h12ucj8h1d0e3e0901gb1/pufepobofi.pdfIn PDF document text
  • https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/qu2a5e75ghgsv0aor2s787qs14/vapivuwasunapepiwovezot.pdfIn PDF document text
  • http://tourister.kr/userfiles/file/ramigipiwobenibil.pdfIn PDF document text
  • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b2c83260271---xofal.pdfIn PDF document text
  • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a916b5ac041---54844982037.pdfIn PDF document text
  • http://mamsongdamchoi.com/images/chua-phan-loai/files/91618645177.pdfIn PDF document text
  • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a08afbe1226---31908998733.pdfIn PDF document text
  • http://neilreardon.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tizapizedurakixub.pdfIn PDF document text
  • https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/8mopja7ovn5hh5a3og8hhqegls/vetagevubafopuvuxe.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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