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
• 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 68 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://krisoc.ru/uplcv?utm_term=mail+365+sign+in PDF link annotation

  • http://www.vikingmaterials.com/img/kuzitipiwavelodegadobe.pdfIn PDF document text
  • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16130fcfaf1c25---5377435691.pdfIn PDF document text
  • https://aluvioneschicamocha.sinecsas.com/ckfinder/userfiles/files/wasakizojupumoreweniza.pdfIn PDF document text
  • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135915691989---73846986019.pdfIn PDF document text
  • http://beerskiboot.com/img/upload/file/wefok.pdfIn PDF document text
  • http://beiwendq.com/userfiles/file/buxop.pdfIn PDF document text
  • http://siripanyalamphun.com/user_img/files/34197533037.pdfIn PDF document text
  • http://am-assets.com/aom/magnolia/userfiles/file/gatototizope.pdfIn PDF document text
  • https://globaltranslation.com/demo/global_translation/beta/userfiles/files/tizakexojudolifiwomesi.pdfIn PDF document text
  • https://retrofitoman.com/ckfinder/userfiles/files/96605981794.pdfIn PDF document text
  • https://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/91822483933.pdfIn PDF document text
  • https://taperagi.com/contents/files/54037338263.pdfIn PDF document text
  • http://daiichigroup.net/uploads/news_file/ronewalivuluzis.pdfIn PDF document text
  • https://dennismaloney.ca/upload/editor/file/fufuvegafamadibujuza.pdfIn PDF document text
  • http://franzoesischebulldoggen.eu/userfiles/file/fiworutitejedosedogevu.pdfIn PDF document text
  • https://regionalhealthprogramsww.com/images/file/27513521959.pdfIn PDF document text
  • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614fd72e42871---54872969255.pdfIn PDF document text
  • http://marketingnews.fr/images/file/farotu.pdfIn PDF document text
  • http://perilatomsk.ru/ckfinder/userfiles/files/73761986758.pdfIn PDF document text
  • http://gamebonda.com/ckupload/files/rafimewuwojinifapap.pdfIn PDF document text
  • http://theffirm.com/userfiles/file/93108837554.pdfIn PDF document text
  • http://gazomotor.com/allinone/file/7140457305.pdfIn PDF document text
  • http://soc-in.com/data/media/files/rasotekano.pdfIn PDF document text
  • http://xn----itbbfrdrdbd4bgy6gi.xn--p1ai/webroot/files/files/20729473724.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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