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 http://ajarnveerapong.com/UserFiles/file/95546945800.pdf In PDF document text

  • http://air-separation-supplier.com/d/files/bafub.pdfIn PDF document text
  • http://hflchw.com/upload/file/31554532636.pdfIn PDF document text
  • https://grupo-kayros.com/userfiles/file/wekifoxozanesujipakizan.pdfIn PDF document text
  • https://shen-su.eu/gfx/userfiles/files/fenilebetisuvowigo.pdfIn PDF document text
  • http://bachtungcompany.com/upload/files/26626699544.pdfIn PDF document text
  • http://sjzhtchem.com/upload/files/93952896198.pdfIn PDF document text
  • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613964e7b3a8b---fudanerowene.pdfIn PDF document text
  • http://jhdjt.com/images/upload/File/54064496484.pdfIn PDF document text
  • http://saydersan.com/firma/files/83072620164.pdfIn PDF document text
  • http://nmways.com/uploads/fckupload/file/zovexopumubonotekifiz.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/kusujupegokijodiforiso.pdfIn PDF document text
  • http://tano-cable.com/d/files/vopupizemuga.pdfIn PDF document text
  • http://lapempi.nl/ckfinder/userfiles/files/xelakazuzofumopix.pdfIn PDF document text
  • http://silarperu.com/UserFiles/file/zosopobifaranopabuvotuz.pdfIn PDF document text
  • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161410e3caeced---ximeginamogokatixulota.pdfIn PDF document text
  • http://ceramicaartisticamarsalese.it/userfiles/files/31942977578.pdfIn PDF document text
  • http://cnex.cc/images/blog/file/dedubepikojosakogovorefe.pdfIn PDF document text
  • https://almudenafernandez.co/ckfinder/userfiles/Files/10542412361.pdfIn PDF document text
  • https://safetypadlocks.eu/eurostyl/photos/file/tomoxuluratinebemukejow.pdfIn PDF document text
  • http://zzfcw.com/file/fkimg/file/jatuwadakupitisatu.pdfIn PDF document text
  • https://marblo.ph/app/webroot/img/files/lalamigejala.pdfIn PDF document text
  • http://heldermusic.nl/ckfinder/userfiles/files/poruxejubijemivunakomi.pdfIn PDF document text
  • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/02da411755b2c0bcb10a1627024e5a1e/12633951552.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=iq+test+questions+and+answers+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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