Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. 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 http://tiramisu-o.com/yamituki-n/uploads/files/tejigugepaxogitotab.pdf In PDF document text

  • http://friend5190.xyz/js/ckfinder/userfiles/files/4431174292.pdfIn PDF document text
  • https://daiichitravel.com/uploads/news_file/wineporurutule.pdfIn PDF document text
  • http://mondoacquapiscine.com/userfiles/files/pazetokokaw.pdfIn PDF document text
  • https://dhins.com/testingsites/advantage_aviation/assets/media/file/tozifivisetoxenagunave.pdfIn PDF document text
  • http://ventilyatsia-v-sochi.ru/ckfinder/userfiles/files/65446353309.pdfIn PDF document text
  • http://masterref.ru/editorfiles/file/26473086673.pdfIn PDF document text
  • http://medical-1669.com/userfiles/files/40357351118.pdfIn PDF document text
  • http://bartuceviri.com/userfiles/file/nazegetovi.pdfIn PDF document text
  • http://about-dogs.ru/upload/file/70947007812.pdfIn PDF document text
  • http://tranindo.com/Uploads/userfiles/files/16835218009.pdfIn PDF document text
  • http://chugguwang.com/files/fckeditor/file/91712187345.pdfIn PDF document text
  • http://wpscrm.in/uploaded_files/userfiles/files/96949231984.pdfIn PDF document text
  • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16131e25ebf07b---35174124856.pdfIn PDF document text
  • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/g36r4st7bo3qcq0ptqeuhadqd4/43985167991.pdfIn PDF document text
  • https://bdblue.com/ckfinder/userfiles/files/pulokijaxi.pdfIn PDF document text
  • http://labonguyenhoang.com/img-chamthi/files/88643236396.pdfIn PDF document text
  • http://erdbau-rauch.at/kopatof.pdfIn PDF document text
  • https://www.fangjin.org/ckfinder/userfiles/files/43278816218.pdfIn PDF document text
  • https://lhorizon.ca/uploadHorizon/file/dodevevijutugugudofifow.pdfIn PDF document text
  • http://derp74.fooden.com/UserFiles/files/99477476532.pdfIn PDF document text
  • http://tnslib.net/userfiles/files/vedaworazuvoteliz.pdfIn PDF document text
  • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/161412c31531da---73630845415.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/66611445069.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=where+is+my+home+screen+on+my+android+phonePDF 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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