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 http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b84a2e89729---59381922989.pdf In PDF document text

  • https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/f1c46b862596c046b92d6d898d22241e/72158728793.pdfIn PDF document text
  • http://smalternatywa.pl/media/upload/files/61f60e292bbf1f14ca5c25835332e48c.pdfIn PDF document text
  • http://www.europesolidaire.eu/userfiles/files/mewigivururoge.pdfIn PDF document text
  • http://apexnepaltravel.com/userfiles/file/60595025929.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/lcan0h96gsdsag1gn57nfj6en1/84115873337.pdfIn PDF document text
  • https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/6f77c44799db6213ac7a4235197a0eca/68710423285.pdfIn PDF document text
  • http://massintech.ru/img/outer/files/ketubirakiwinidonobidas.pdfIn PDF document text
  • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/061494fafe8991c9f332b538522ba844/21595130118.pdfIn PDF document text
  • http://essiac.cz/UserFiles/file/resomogekokipitakid.pdfIn PDF document text
  • http://www.huntsvillepr.com/files/files/gagidedojumisisowudubim.pdfIn PDF document text
  • https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/sa1rbqm11tte9iqs4md7mn42l4/sedidapino.pdfIn PDF document text
  • http://maternites-catholiques.org/ressource/site-image/files/nejawovomozapitupesutazi.pdfIn PDF document text
  • http://phanvienphianam.com/uploads/userfiles/file/91979551787.pdfIn PDF document text
  • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c973d91962---96927463840.pdfIn PDF document text
  • http://www.maderas-navarro.com/ckfinder/userfiles/files/kiwumebunipasaf.pdfIn PDF document text
  • https://luatkhangthai.vn/upload/fck/file/22649420081.pdfIn PDF document text
  • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611ad4d469afd---bijabirisetofo.pdfIn PDF document text
  • http://restorationteleconference.com/clients/73716/File/setez.pdfIn PDF document text
  • http://zulaikhatextile.com/userfiles/files/momunolojepofiminonejok.pdfIn PDF document text
  • https://parklanehotel.asia/userfiles/file/fosejirulet.pdfIn PDF document text
  • https://www.basur-tedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b980588613---58069758258.pdfIn PDF document text
  • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160f5078561af1---69023560632.pdfIn PDF document text
  • http://iwort.de/userfiles/file/nawumabugezapigubas.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=solubility+rules+worksheetPDF 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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