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
• PHP webshell / backdoor source critical WEBSHELL_PHP
  The file contains PHP server-side code with the signature of a webshell/backdoor (named PHP webshell banner (madspot)). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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.
• 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://wirut.co.za/XSRYdR1H?utm_term=transformers+3+sentinel+prime+wallpaper PDF link annotation

  • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/ml9rf5n9narnfnf5dej6tf5a3k/40788761824.pdfIn PDF document text
  • http://dailyliving.nl/ckfinder/userfiles/files/21422353413.pdfIn PDF document text
  • http://pp-aqua.com/userfiles/files/84500969565.pdfIn PDF document text
  • https://nieruchomosciprzetargi.pl/files/file/wagonolutalozopejodi.pdfIn PDF document text
  • https://dlt-nkp.com/fileupload/file/lexijogosedawipirelafig.pdfIn PDF document text
  • https://rt-totaalafbouw.nl/userfiles/file/91712867190.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616408db0bfac---sexupedexitipe.pdfIn PDF document text
  • https://em.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/zevivufolelukakamez.pdfIn PDF document text
  • https://madspot.dk/ckfinder/userfiles/files/36221997445.pdfIn PDF document text
  • https://skippidy.com/userfiles/file/tusawokedejawajidok.pdfIn PDF document text
  • http://yibetter.com/data/files/rubefabefefazalumoju.pdfIn PDF document text
  • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c9a7563a11d---37333103298.pdfIn PDF document text
  • http://muasamhangmy.com/ckfinder/userfiles/files/porekakesavanevup.pdfIn PDF document text
  • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/16194405d448c9---povujugiretozova.pdfIn PDF document text
  • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a6c9de64c80---jozotusulemovajinewow.pdfIn PDF document text
  • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/enug40fu0olc67076u95hrnbl9/64444741478.pdfIn PDF document text
  • http://arucax.am/user_images/file/48458055870.pdfIn PDF document text
  • http://ventexevent.se/uploads/file/segitudebapaxuwegux.pdfIn PDF document text
  • http://laserinnsbruck.com/static/senegaletevutomeledolosov.pdfIn PDF document text
  • http://kernenshepler.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/60107076771.pdfIn PDF document text
  • http://bytip.net/filespath/files/20211230154146.pdfIn PDF document text
  • https://cserepakciok.hu/xdata/file/sowez.pdfIn PDF document text
  • https://labelmarket.pl/data/file/19813229380.pdfIn PDF document text
  • https://aspirans.com/files/file/zidajaripidu.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16140c01281320---33090111844.pdfIn PDF document text
  • http://ilkjv.com/Images/Media/files/zekemusoka.pdfIn PDF document text
  • https://cam-ceeds.org/ckfinder/userfiles/files/zatesilirakiv.pdfIn PDF document text
  • http://gns3.swiz.eu/files/editor/55277854283.pdfIn PDF document text
  • https://mocktest.realestateerp.in/FCKeditor/file/41230716214.pdfIn PDF document text
  • http://slstudio.it/userfiles/files/13116098216.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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