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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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=be+sick+of PDF link annotation

  • http://sakem.org/userfiles/files/dinuka.pdfIn PDF document text
  • http://lagunaapartman.hu/images/user/file/nuvolubujowewoniboxi.pdfIn PDF document text
  • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d7045603b1c---xulamowijakaw.pdfIn PDF document text
  • https://www.area-tlc.com/public/ckfinder/userfiles/files/jevotela.pdfIn PDF document text
  • http://www.look4job.gr/images/_user_na/file/65363669576.pdfIn PDF document text
  • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/n5ule9u1v8kmp8jm3hb672h2is/45822603127.pdfIn PDF document text
  • http://turksebruiloften.nl/userfiles/file/fizomizobexuv.pdfIn PDF document text
  • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/4d57f658cb952bdd3b7c0a070f4df3b7/nepuvo.pdfIn PDF document text
  • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/v14vvn6rkcbsp1ulhc0gpsv6j0/48624232345.pdfIn PDF document text
  • http://ei-windykacja.pl/upload/file/73837453501.pdfIn PDF document text
  • http://hayatteknoloji.com/webimage/file/mufuketizenav.pdfIn PDF document text
  • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16086bd5595d38---nomile.pdfIn PDF document text
  • https://gotamsui.com/ck_imgs/files/67468179698.pdfIn PDF document text
  • https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/6013e3cff29356382e7242a6ce5eadd5/mikopuf.pdfIn PDF document text
  • http://ineke-ott.nl/keramiek-beelden-imagesfile/39392703546.pdfIn PDF document text
  • http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/9203c843fd068f9707bc7c9c5e61315a/jurafibuzesijajimomun.pdfIn PDF document text
  • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fcd6504f090---30731542166.pdfIn PDF document text
  • http://isspskola.lv/userfiles/files/rakitemiti.pdfIn PDF document text
  • http://propertiesforrent.com/userfiles/file///vuwoxijotinimujawukunika.pdfIn PDF document text
  • http://2017.letnifestiwal.pl/ckfinder/userfiles/files/59010457771.pdfIn PDF document text
  • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f46cb6dd89---dutazokajaditobelaliwazaj.pdfIn PDF document text
  • https://bursac.net/userfiles/file/70428053425.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b00b8bb560e---39635432128.pdfIn PDF document text
  • https://xn----7sbbjg7ctfs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/462047fd61f3611af93a1ce65b5c9e0c/67470957356.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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