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.
• 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://lazav.co.za/XSRYdR1H?utm_term=esl+english+conversation+worksheets PDF link annotation

  • https://funstoreus.dialog.org/userfiles/file/32253924185.pdfIn PDF document text
  • http://etalentlink.com/uploadfile/file///2022021418482480.pdfIn PDF document text
  • http://liweisteel.co.th/ckfinder/userfiles/files/65233956327.pdfIn PDF document text
  • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621c72c963df8---17816498050.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621bc437bdd2c---rusewuw.pdfIn PDF document text
  • http://evaemlak.com/userfiles/file///tisitenogekomezivos.pdfIn PDF document text
  • https://jvlegacyhomerepairsmd.com/nbloom/fckuploads/file/15078912188.pdfIn PDF document text
  • http://avgustal.ru/kcfinder/upload/files/rusamupo.pdfIn PDF document text
  • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16203d5907b1ad---56684334524.pdfIn PDF document text
  • http://ultraljud.nu/bild/files/loxoxojuzedopu.pdfIn PDF document text
  • https://groupekineconcept.com/userfiles/file/rokobegabubitudifoniwo.pdfIn PDF document text
  • https://basundharamart.com/userfiles/file/89577042073.pdfIn PDF document text
  • https://munkenpo.or.jp/kcfinder/upload/files/24898845494.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/rvhvn3dge8lc42m02edq6aipel/pagubibimomopomefigu.pdfIn PDF document text
  • http://cameralehiep.com/hinhanh_fckeditor/file/modiv.pdfIn PDF document text
  • http://xenangheli.vn/public/files/tumiwikigowuvoxutusemi.pdfIn PDF document text
  • http://easternhoteljeju.com/FileData/ckfinder/files/20220225_391D8155F8094D40.pdfIn PDF document text
  • http://www.guard.ee/kcfinder/upload/files/fogakibiz.pdfIn PDF document text
  • http://www.oneworldkarate.com/fckeditorimages/userfiles/file/31353041736.pdfIn PDF document text
  • https://dulichduyendangvietnam.com/uploads/news_file/41512636791.pdfIn PDF document text
  • https://forumhrdbekasi.com/webroot/userfiles/files/wesijuwijasi.pdfIn PDF document text
  • http://eko-baby.ru/userfiles/file/mosapolikisonowu.pdfIn PDF document text
  • https://ww170002.linebot.net/upfile/files/20220203042106.pdfIn PDF document text
  • https://mondoaudio.it/img/uploaded/file/15110014446.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/60272525286.pdfIn PDF document text
  • http://kartoniki.hurtubezpieczen.pl/userfiles/resijividizowatuposone.pdfIn PDF document text
  • http://corse.annuaire-regional.com/ckfinder/userfiles/files/97306663251.pdfIn PDF document text
  • https://stancijanegrin.com/UserFiles/files/bugegubuwokasusoku.pdfIn PDF document text
  • https://202x231x229x35.3gokushi.jp/uploads/files/78557427522.pdfIn PDF document text
  • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/162015f7271c35---13573720881.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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