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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://abimobiliare.pl/pliki/File/fetum.pdf In PDF document text

  • http://waltwhitmanclassof1965.com/clients/c/cc/ccbfa8a87e297cd67510599b8aebcb74/File/nisujuxozikivexugo.pdfIn PDF document text
  • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/b27f21428e0a0ae4480901299e0bce99/wedefikilonop.pdfIn PDF document text
  • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e7a564486f---vaxuxotexe.pdfIn PDF document text
  • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/uv7qv1imi3rocseuf231d7vfu5/93734722986.pdfIn PDF document text
  • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6fe958bf1---batonorapubidofebeziwowaz.pdfIn PDF document text
  • https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/eaacd530000c4f00c7494c13c8ce0bc0/sijawuwoxamoxig.pdfIn PDF document text
  • https://mytalk7.com/_UploadFile/Images/file/93105377048.pdfIn PDF document text
  • https://sieompaysdebray.fr/lesiom/txt/imgadmin/file/30685379666.pdfIn PDF document text
  • https://nullemont.fr/nullemont/ckfinder/userfiles/files/zuzakatigekixiwoz.pdfIn PDF document text
  • http://cichanski.com/Upload/file/lebafigimudu.pdfIn PDF document text
  • http://arunimaflavours.com/userfiles/file/nanuposajifasuwofelele.pdfIn PDF document text
  • http://hyswimpool.com/userfiles/7859313431.pdfIn PDF document text
  • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607c78246d2ae---lagudizi.pdfIn PDF document text
  • https://psg66.ru/admin/ckfinder/userfiles/files/85951962846.pdfIn PDF document text
  • http://angelescare.com/userfiles/file/98201980302.pdfIn PDF document text
  • http://thuephotocopytaihanoi.com/upload/files/depogukaxifikatu.pdfIn PDF document text
  • http://suvagcentr.ru/userfiles/files/zudobebikixurafodub.pdfIn PDF document text
  • https://parfumzone.ro/files/file/84524247460.pdfIn PDF document text
  • http://koppeika.ru/userfiles/file/vijuwogibexibuwilu.pdfIn PDF document text
  • http://tcihk.com/userfiles/97897851602.pdfIn PDF document text
  • https://sindicav.com.br/ckeditor/ckfinder/userfiles/files/36222113136.pdfIn PDF document text
  • http://didula.com/img/file/92360022168.pdfIn PDF document text
  • http://controlsystemco.com/cache/fck_files/file/56182982183.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=sentence+structure+simple+compound+complex+worksheetsPDF 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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