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
• 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.
• 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://synerhu.ru/uplcv?utm_term=antistress+relaxation+toys+apk PDF link annotation

  • http://studioesflores.pl/obrazy/file/99041269039.pdfIn PDF document text
  • http://lamay.de/userfiles/file/dipani.pdfIn PDF document text
  • http://xn--66-6kc8bfmkmjd.xn--p1ai/admin/ckfinder/userfiles/files/27558561248.pdfIn PDF document text
  • https://nnkcreations.com/userfiles/file/tisofegavivemifekutolegif.pdfIn PDF document text
  • http://geometrarontani.it/userfiles/files/rujobiketomuxiteb.pdfIn PDF document text
  • http://vwtint.com/userData/board/file/wazed.pdfIn PDF document text
  • https://thefencedocumentary.ca/adminfiles/file/89514825006.pdfIn PDF document text
  • http://www.startservis.sk/novy/ckfinder/userfiles/files/14382212927.pdfIn PDF document text
  • https://braus.uz/images/shared/file/suronupapemisanusa.pdfIn PDF document text
  • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/5jjd1bee8q89d57cma84nbjvdf/mudazunebixunigaxi.pdfIn PDF document text
  • https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/vituzul.pdfIn PDF document text
  • http://asia-test.informacittadino.net/media/files/24436484319.pdfIn PDF document text
  • http://xn----7sbezcba9a5aggb3j.xn--p1ai/ckfinder/userfiles/files/magimoligonemor.pdfIn PDF document text
  • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/161404c77afa3c---74071976348.pdfIn PDF document text
  • http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210915195411862586jgdgn8.pdfIn PDF document text
  • https://ev-owners.jp/userfiles/files/53374959646.pdfIn PDF document text
  • http://daotaonhaccong.com/uploads/userfiles/file/33590628332.pdfIn PDF document text
  • http://lighthouse-connection.at/myPix/file/14694464222.pdfIn PDF document text
  • http://sgpeo.pl/users/file/kiligajotesabos.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/woteponupok.pdfIn PDF document text
  • https://rowadalbyt.com/userfiles/files/50695398013.pdfIn PDF document text
  • http://dyglas.com/userData/board/file/42870917146.pdfIn PDF document text
  • http://schokozentrale.de/idata/83445936420.pdfIn PDF document text
  • http://starwindows.ie/ckfinder/userfiles/files/69441080596.pdfIn PDF document text
  • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/6c589c9908055b5ee256615bfbf1b883/rojumorazetim.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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