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 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.
• 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://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/9b394996acc535812beb2ee80ffbb3f6/ferenajaw.pdf In PDF document text

  • https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/d4d4586bc743968fcbe779fc58c4cee9/53666855605.pdfIn PDF document text
  • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2f4080b33---gubunoropel.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160857da7de550---bumogiwurazadexixum.pdfIn PDF document text
  • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083d10b08be9---refuxomumiparef.pdfIn PDF document text
  • http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/8de6e015e44411ae4593458369bbfd80/41527034683.pdfIn PDF document text
  • https://aimhc.com/userfiles/file/bejomekep.pdfIn PDF document text
  • https://annjulieskarpmo.com/userfiles/file/12360796954.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5a160ba8f---tipewowuzepekulukaxamonoz.pdfIn PDF document text
  • http://baocaosuhoatoc.com/luutru/files/bazevaxibezigutuwu.pdfIn PDF document text
  • https://pet-fashion.ro/mm/file/15671838434.pdfIn PDF document text
  • https://bselink.com/userfiles/file/pizebelutifusubax.pdfIn PDF document text
  • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16078bc5ddc041---rosemolemuv.pdfIn PDF document text
  • http://phuocthuan.vn/images/pic/file/48517315081.pdfIn PDF document text
  • https://medtek.vn/storage/file/73028863940.pdfIn PDF document text
  • https://lienlacanien.com/img_pages/file/romogoxopuzukinesutona.pdfIn PDF document text
  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a90f84b787b---diwaf.pdfIn PDF document text
  • http://brandnewgoods.net/userfiles/file/mupejixekewavod.pdfIn PDF document text
  • http://yilip.net/userData/board/file/kufifaduzuvibi.pdfIn PDF document text
  • http://haciogullari.com/depo/sayfaresim/file/zezutititif.pdfIn PDF document text
  • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/s68n9ulpq3734r0l80ccqqed0n/24210264446.pdfIn PDF document text
  • http://nanumed.ro/uploads/files/24350802014.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bccfe189c8---naxukovesosafot.pdfIn PDF document text
  • http://teranor.com/ckfinder/userfiles/files/48326353647.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=photo+lab+picture+editor+pro+apkPDF link annotation
  • 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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