Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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.
• JavaScript action low PDF_JAVASCRIPT
  PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://irlanc.ru/uplcv?utm_term=nefor+espid+para+android PDF link annotation

  • https://abogadosaccidentealicante.centralcms.cloud/galeria/files/nojivafifelov.pdfIn PDF document text
  • http://ecohort.com/userfiles/files/tokapewafivinobobawes.pdfIn PDF document text
  • http://redeyeldn.com/userfiles/file/84352817148.pdfIn PDF document text
  • http://primaria-ciocirlia.ro/media/file/guwojaxumavu.pdfIn PDF document text
  • http://4998horo.gmmwireless.com/contents/files/82851252045.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/28999687536.pdfIn PDF document text
  • http://artetendasud.it/userfiles/files/dugowaro.pdfIn PDF document text
  • http://ekogamma.pl/javascript/ckfinder/userfiles/files/1146752616.pdfIn PDF document text
  • http://ahlhy.com/uploads/file/061816331978.pdfIn PDF document text
  • http://xn--b1afklwjc5g.xn--p1ai/ckfinder/userfiles/files/nepovavetijipusitonatuna.pdfIn PDF document text
  • http://autosoftware.company/autoresponders_images/files/4042980229.pdfIn PDF document text
  • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/161385331cb7cb---sumipixukexiwisijize.pdfIn PDF document text
  • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/b3cb073d6d01c664692b6c5e44e6bcc1/3100448070.pdfIn PDF document text
  • https://szekszardportal.hu/userfiles/file/1552846414.pdfIn PDF document text
  • https://ketdoanbus.com/webroot/img/files/rumuwele.pdfIn PDF document text
  • https://samudra99.com/contents/files/zugafisatiwe.pdfIn PDF document text
  • https://kozmetikadunakeszi.hu/userfiles/file/27956731601.pdfIn PDF document text
  • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/s66fqrg1ee8lhu87uenrrsd313/67329732736.pdfIn PDF document text
  • http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/14749323129.pdfIn PDF document text
  • http://newcityhk.com/userfiles/daxugipilu.pdfIn PDF document text
  • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/2d00aba59b510b6ba822cd69f632804f/4858962342.pdfIn PDF document text
  • http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd7c4f0dd4---65249752573.pdfIn PDF document text
  • https://tranthachcaodanang.com/uploads/image/files/ximibapub.pdfIn PDF document text
  • http://finpacecuador.com/userfiles/file/73002218104.pdfIn PDF document text
  • 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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