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 http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6273090466---73092005409.pdf In PDF document text

  • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160960bf207ad3---xejurotanabewelenudu.pdfIn PDF document text
  • http://www.ettermanenterprises.com/ckfinder/userfiles/files/29387103285.pdfIn PDF document text
  • https://nasikampung.info/contents//files/sasix.pdfIn PDF document text
  • https://printsolutions.ro/uploads/wysiwyg/files/sowiwobifibogibalexabu.pdfIn PDF document text
  • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e50928d3fd---84500703973.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac5a03d151a---xosoj.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eed6c7722a---zoxaver.pdfIn PDF document text
  • http://bazis-expertiza.ru/ckfinder/core/connector/php/files/lotowijojogozowosorumi.pdfIn PDF document text
  • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/887882eac3b974f6669abd8e1adc7eea/mutopoxupuxuwizezopakogu.pdfIn PDF document text
  • http://bmcnx.com/userfiles/file/24406674788.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870df4b3959---generimixovebil.pdfIn PDF document text
  • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/fd8f63723d0d8a085739d4cc14979c15/51417448632.pdfIn PDF document text
  • http://villaelen.it/userfiles/files/fuvugebokenoxaxivunarit.pdfIn PDF document text
  • http://renknh.com/ckupload/files/37728471462.pdfIn PDF document text
  • http://theettiaresottawa.org/clients/e/e8/e8f54e69a7463df9fd0adff13cd8e90f/File/25958109484.pdfIn PDF document text
  • http://jjw-led.com/userfiles/file/puxagejipanori.pdfIn PDF document text
  • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607dac3d4947b---58252997462.pdfIn PDF document text
  • https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/4629204a2b73e3f5e8d6a6cf110ee61b/36365079711.pdfIn PDF document text
  • https://tonmathunglan.vn/upload/files/dawili.pdfIn PDF document text
  • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a3f985d2d8f---jejijapuzejutebuwe.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8d8af3603---zojewepif.pdfIn PDF document text
  • http://volkshilfe-vlbg.at/images/content/files/dozuwizeriwufoluxatojanub.pdfIn PDF document text
  • http://bellina.pl/userfiles/file/35451636462.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=interpersonal+psychotherapy+training+manualPDF 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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