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
• 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.
• 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 http://fijiembajak.com/uploads/ck_uploads/files/50914159084.pdf In PDF document text

  • http://phanphoiongnhuahoasen.vn/upload/files/zafesaxi.pdfIn PDF document text
  • http://ahdongjiu.com/upload_fck/file/2021-5-17/20210517213043763264.pdfIn PDF document text
  • http://jmvlpslimited.com/ci/userfiles/files/xosepasux.pdfIn PDF document text
  • https://abandassociates.com/ckfinder/userfiles/files/37376161998.pdfIn PDF document text
  • http://pogservice.ru/userfiles/file/222761265.pdfIn PDF document text
  • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ca188c781---zipezu.pdfIn PDF document text
  • https://chatsystem.site/js/ckfinder/userfiles/files/sipomuvokaxofetelimajubi.pdfIn PDF document text
  • http://pensjonatagat.pl/userfiles/file/68244153214.pdfIn PDF document text
  • http://machi-tomo.xyz/js/ckfinder/userfiles/files/fupebasotilavokosukepega.pdfIn PDF document text
  • http://architects-desk.com/uploadsfile/sakej.pdfIn PDF document text
  • http://deepakbatteries.com/uploads/file/vikazota.pdfIn PDF document text
  • http://hondasushi.com/uploads/files/75262974238.pdfIn PDF document text
  • http://swancentive.com/cote_dor_import/admin/ckfinder/userfiles/files/24296341744.pdfIn PDF document text
  • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/4vvjtei203nhao5o7lo8e0str2/67404816440.pdfIn PDF document text
  • https://amenajarisiconstructii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608e192761075---40788395843.pdfIn PDF document text
  • http://ledesmasportsmedicinesavannahcentury.com/clients/4/44/449a5b3489ef279447e90cf6cdd72f1c/File/nadovovuwakilonevu.pdfIn PDF document text
  • https://www.premiumtrade.ro/ckfinder/userfiles/files/sapiwijukekedowumidakodek.pdfIn PDF document text
  • http://architects-desk.com/uploadsfile/60533608038.pdfIn PDF document text
  • https://stbenedikt.ch/userfiles/files/lusizerewezubegatu.pdfIn PDF document text
  • http://chiengthai.com/file_media/file_image/file/kezalavu.pdfIn PDF document text
  • https://kuepancong.com/contents//files/58676521879.pdfIn PDF document text
  • http://rolfingnaples.com/clients/a/a5/a5422f62036d2d393d866963e902351c/File/80111613889.pdfIn PDF document text
  • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160765b22e39df---fudefejuleluzer.pdfIn PDF document text
  • https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/6dbc2be6ec2fc119d8c5cb2187a5eba7/tebodize.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=the+meaning+of+consciousnessPDF link annotation
  • http://mustang.tom.ru/jsplugins/ckfinder/userfiles/files/gigowefuf.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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