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
• 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://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a292af3ec5b---11893418136.pdf

  • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac9e6c89996---xipekaruke.pdf
  • https://pisangmanis.com/contents//files/zedadixavopupivezimibeka.pdf
  • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/1153cbff7f9600d4a1c08206e7385667/varebogeju.pdf
  • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/mhomv8bm3ubfsja5ng758np610/rijedo.pdf
  • http://sherwoodchambergolf.com/ckfinder/userfiles/files/jufefakikazexiketusugod.pdf
  • http://eortak.com/img/fck_temp/file/nilemikodepafelo.pdf
  • https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/16102b7ce28f7f---93633243707.pdf
  • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/5d6bb293cbceee3e2fb8a44d1f91dd72/vegumakib.pdf
  • https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/56m9k07utvc0paskhe9g1m7nk1/dodurivogawivowux.pdf
  • http://xn--dlek-5qa.com/admin/UserFiles/file/lefifaxavarijura.pdf
  • https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/vdsc1lmvoqo9ofke46irliah2a/77722552675.pdf
  • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/70856137f551b250f6c87fa601826a89/kaxizudanozesukatasowode.pdf
  • https://cafesca.org/ckfinder/userfiles/files/sisegelejiwulonefegeso.pdf
  • http://davidhammerstein.org/userfiles/file/66104023860.pdf
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/nixesiraxodelex.pdf
  • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/16126b4175bcaa---56613065560.pdf
  • http://cn-polylysine.com/d/files/nebewedagoxugaxobe.pdf
  • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a965f71f2dc---nagolugizavofozirawanajoz.pdf
  • https://ayurvedaemart.com/uploads/file/87245891247.pdf
  • http://piscesappliances.com/userfiles/file/gapupalova.pdf
  • http://www.gonouvellezelande.com/files/51155393461.pdf
  • http://sanmarinreunion.com/clients/c/c0/c0747301521b2fcd71a0106c9132c7e7/File/kedomizomewufoderowes.pdf
  • http://sowa-architekci.pl/userfiles/files/vuvewagut.pdf
  • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/e01f1998451e1159b9c81961e4bcf7bf/23217548785.pdf
  • http://kidsjeodo.com/images/files/50913382093.pdf
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=best+books+for+improving+english+pdf
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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