Malicious PDF — malware analysis report

Heuristics 8

• 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 2 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.
• 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://philabc.ru/uplcv?utm_term=upload+pdf+file+to+server+in+android+using+volley PDF link annotation

  • http://aviatechinform.ru/sadm_files/zujoritofisawekupani.pdfIn PDF document text
  • http://48bulls.com/js/upload/files/41852149736.pdfIn PDF document text
  • https://shastriratanchatterjee.com/ckfinder/userfiles/files/ranipefugalabi.pdfIn PDF document text
  • http://studiopassarotti.it/userfiles/files/finimudujateloba.pdfIn PDF document text
  • https://europacreativaeuskadi.eu/files/galeria/files/nokanakuvelalefutazeribuz.pdfIn PDF document text
  • http://laiyi-art.com/userfiles/file/80334096685.pdfIn PDF document text
  • https://digireg.at/upload/karunaloxopolunameb.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16139b6a58a096---10740857880.pdfIn PDF document text
  • http://hstairan.com/FCKeditor/editor/filemanager/connectors/php/userfiles/file/22617740016.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/b0cd8e81da0eaefa5f1ac1b1b045dc41/jizosugowesi.pdfIn PDF document text
  • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613228da484eb---7020131063.pdfIn PDF document text
  • http://1night2day.com/ckupload/files/gatem.pdfIn PDF document text
  • http://jlssj.com/qianzi/upfile/case_editor/file/89135367064.pdfIn PDF document text
  • https://cnn-logistics.com/asset/files/11597215531.pdfIn PDF document text
  • https://burragebrothers.com/demo/jolie/beta/userfiles/files/nitako.pdfIn PDF document text
  • https://promptcorporate.com/ckeditor/ckfinder/userfiles/files/77770675585.pdfIn PDF document text
  • https://marjoyunlar.com/calisma2/files/uploads/25733983203.pdfIn PDF document text
  • http://siamsankyo.com/Uploads/file/kemazebogefumosemakoji.pdfIn PDF document text
  • https://bold-iot.com/uploads/files/202109130647175161.pdfIn PDF document text
  • https://psg66.ru/admin/ckfinder/userfiles/files/28266427101.pdfIn PDF document text
  • http://ramenzoni.eu/userfiles/files/72923668450.pdfIn PDF document text
  • http://personal.sut.ac.th/chantira/port/ckfinder/userfiles/files/pixujidotosozopa.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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