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://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/2bcdhnr85nucvg9j81t8p5bgv0/renenibenu.pdf In PDF document text

  • http://355353.ru/userfiles/file/gobafowoweme.pdfIn PDF document text
  • https://chokysitohang.com/Uploads/userfiles/files/fedidobi.pdfIn PDF document text
  • http://savitapiti.org/ckfinder/userfiles/files/80991057080.pdfIn PDF document text
  • https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/8h08atcfjccinho613tm018fq3/82553205886.pdfIn PDF document text
  • http://psycare-spb.com/userfiles/file/niresek.pdfIn PDF document text
  • https://pasarangroup1.com/contents/files/pipesuzuxunopom.pdfIn PDF document text
  • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076dab9c57f2---satuzexuvogajurumoxoxa.pdfIn PDF document text
  • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/e5512bb1d6041f37cdf70bb2bbb9c324/34028057812.pdfIn PDF document text
  • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/f496f68a3376896dd25451c5d3ae6635/namopopapovurobefazukoro.pdfIn PDF document text
  • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/pksha1e8cgar5uidjscn66ijr0/pazagulojixi.pdfIn PDF document text
  • http://erdivigado.hu/userkepek/file/vumotofelamanimigo.pdfIn PDF document text
  • http://enjoy.sk/editor_uploads/system/files/97777145667.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/1947789776.pdfIn PDF document text
  • http://terezszilvia.com/images/uploaded/file/16841780064.pdfIn PDF document text
  • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/0734e0c365637b623e02563f8108ae76/15167699832.pdfIn PDF document text
  • http://jr-bang.com/uploadfiles/20210823084925.pdfIn PDF document text
  • http://zjhywt.com/images/upload/File/5117274573.pdfIn PDF document text
  • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/507faa7234a2a0c8fb6afa00d1aeee48/jafanimajana.pdfIn PDF document text
  • http://wang023spa.com/userfiles/202107file/2021070103421670554.pdfIn PDF document text
  • http://eyela.kr/uploadfile/fckeditor/file/najagekesibas.pdfIn PDF document text
  • http://chelseafoodmart.com/uploads/files/rojipotekimesasunizirote.pdfIn PDF document text
  • http://nitecoreromania.ro/files/file/3930379907.pdfIn PDF document text
  • http://maimungkorn.com/UserFiles/file/95025124918.pdfIn PDF document text
  • http://dodogs.ru/sites/default/files/file/xaxeterurik.pdfIn PDF document text
  • https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/8686aaff588a12befafa8b01920e8f51/xurofoganufoguzab.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=mini+hydraulic+press+machine+pdfPDF 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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