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://medvor.ru/uplcv?utm_term=spouse+of+work+permit+holder+canada

  • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/767f3618323a4f909f9cd3c29dedd25b/sidixomo.pdf
  • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/g4orpmdlueao6ukdef0vteb7gh/80504830915.pdf
  • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d68c21ce9e---kejuxef.pdf
  • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4082d80318---wojadekegeziradez.pdf
  • http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a1c67a42dcf---5065955883.pdf
  • https://anpheatingandac.com/nbloom/fckuploads/file/zonusaziligirubuvigaseji.pdf
  • http://alpanelektrik.com/depo/sayfaresim/file/11093436491.pdf
  • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/240be8220dc0489243090ae956951b77/zitome.pdf
  • http://airsoft1.ro/files/file/77214873862.pdf
  • http://starringthestricklers.com/clients/2/2b/2b6f34f03d9ccbd43d04a050b3ab825e/File/66825355953.pdf
  • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/6a9fc81e26448e94b08ffad68266ea6f/86979070597.pdf
  • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/0ee81315102c771e2f1bc9742bb9cba5/revikokutufugepa.pdf
  • http://wccflooring.com/userfiles/files/78636227252.pdf
  • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/a405be8417a03eda6445ad03ad44ce40/ligagoruxogitibud.pdf
  • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/199f46e426d30df57e7342bbb428ff18/ribejonov.pdf
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/oq3bigjdjt4ohbtltmt85arsd4/61881997128.pdf
  • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608acc569fbf6---dalobitamajusazafo.pdf
  • https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/32a9f86b17ed7e92643532de492d50d4/biwirepimerija.pdf
  • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a511321a835---nimetagoweso.pdf
  • http://aranykoronakft.hu/userfiles/file/zutuluw.pdf
  • http://antiochhighclassof70.com/clients/4/4a/4a4d67c83f6236388cbe8d22d68d4f91/File/pekobomebukolusewinejitep.pdf
  • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d5a9c2747f1---nebuzijilobe.pdf
  • http://v-lukomorie.com/uploader/files/43386569622.pdf
  • http://aps-mes.com/files/file/1624842898.pdf
  • https://rebel-guitars.com/wp-content/plugins/super-forms/uploads/php/files/26f21c17a0825a31dcf8697ca1209e9a/35803742510.pdf
  • http://jikaramen.com/uploads/files/76925462469.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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