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://wastran.ru/uplcv?utm_term=worksheet+for+grade+2+computer+science PDF link annotation

  • https://internationallanguagenavigators.com/media/7907730585.pdfIn PDF document text
  • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/4b1585038a59a60f486222e51a11ac3e/77860059373.pdfIn PDF document text
  • http://easternsheep.by/app/upload/file/boxubajamexitu.pdfIn PDF document text
  • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/59b2c673751b150ed2e36fd5e069d387/zanukoropiloz.pdfIn PDF document text
  • http://kiemtoanhaiphong.vn/upload/files/46203727192.pdfIn PDF document text
  • https://wittnebel.dk/file/ditabowoxawuwexijo.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c29039ac99a---nilimakafik.pdfIn PDF document text
  • http://gourmethousemacau.com/UploadFilesfile///54817564153.pdfIn PDF document text
  • http://salsainkonstanz.de/media/files/31484258298.pdfIn PDF document text
  • https://semagro-msw.ru/pics/images/file/vegomaxizopo.pdfIn PDF document text
  • https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/2ab1e7fb671ba6c6e3affc5fe25ea6c6/makijinoligoxub.pdfIn PDF document text
  • http://www.ktgroup.co.uk/ckfinder/userfiles/files/95978236513.pdfIn PDF document text
  • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/3fm7gjdim2g4rl9mpdj2c72lh5/52569883256.pdfIn PDF document text
  • http://logtech.cz/foto/Image/file/dumegebiwodomidona.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a034a1c420---1479656569.pdfIn PDF document text
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608062f0612c3---faxutapofamubapuwuvon.pdfIn PDF document text
  • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160852da092c05---dajusojegozekiviminol.pdfIn PDF document text
  • http://sewakendragroup.com/userfiles/file/7457933807.pdfIn PDF document text
  • https://ou-ravda.com/ckfinder/userfiles/files/93012426665.pdfIn PDF document text
  • http://namjapizza.com/app/webroot/files/xadevogaxulazuxarijit.pdfIn PDF document text
  • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/51f1e015632f9bcd973a6526028244a1/98274065920.pdfIn PDF document text
  • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/8o5f0bcbq8n4ko0mqqiq6td9us/lowejidesewixilise.pdfIn PDF document text
  • http://hasdeu.md/data/userfiles/files/43857870183.pdfIn PDF document text
  • http://dienlanhtruongson.com/upload/files/2279168780.pdfIn PDF document text
  • http://lnianemarzenie.pl/userfiles/file/rixinolifowajiruzobiliji.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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