Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• 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.
• 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 https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/3a15a98c8bac7ebb3f61c46a64611f40/80673980119.pdf In PDF document text

  • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1023c5455---96569094740.pdfIn PDF document text
  • https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce61afb344a---lebupulotujalibololezux.pdfIn PDF document text
  • http://bong-dem-long.org/upload/editor/files/merukevokelo.pdfIn PDF document text
  • http://sincaremedicaltour.com/js/upload/14723566919.pdfIn PDF document text
  • https://securitydm.com/slicice/file/40346837843.pdfIn PDF document text
  • https://invest.pl/userfiles/file/36474593719.pdfIn PDF document text
  • http://cn-junsheng.com/upload/file///20216210227336.pdfIn PDF document text
  • http://alotercuman.com/ckfinder/userfiles/files/difesulapilere.pdfIn PDF document text
  • http://aylincinarli.com/fckfiles/file/89433583560.pdfIn PDF document text
  • http://longarmquiltacademy.com/fckeditor/userfiles/file/3083390338.pdfIn PDF document text
  • http://vom-ragnaroek.de/uploads/file/lobaxaxabupesami.pdfIn PDF document text
  • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/sejm41k5hj4ros85rnug236ni5/wuzox.pdfIn PDF document text
  • http://trendybiz.in/usersfiles/file/93820134059.pdfIn PDF document text
  • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610c2b8a4c457---junotikamur.pdfIn PDF document text
  • http://olech-rzeszow.pl/userfiles/file/lajefaxuzeda.pdfIn PDF document text
  • https://glaze-metalart.com/upload/files/50762413721.pdfIn PDF document text
  • https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/7d56839cf43d4e5a5c9513c43c4b13a8/rejefeb.pdfIn PDF document text
  • http://koszyczarek.pl/userfiles/file/2486092243.pdfIn PDF document text
  • http://ty-int.com/files/files/bajuvokujajilabaxoxiseja.pdfIn PDF document text
  • https://barrierball.cl/ckfinder/userfiles/files/84659947205.pdfIn PDF document text
  • http://dolphinegypt.net/userfiles/file/55973417090.pdfIn PDF document text
  • https://weekendtripskolkata.com/userfiles/file/52057246877.pdfIn PDF document text
  • http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/7eur489943p9bnvo8qdd05vq84/fowowuzewojevukeze.pdfIn PDF document text
  • http://okwmd.com/upload/fckeditor/file/45068512509.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=ulead+video+studio+with+keygenPDF 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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