Malicious PDF — malware analysis report

Static analysis result for SHA-256 55065aca16fcb509…

MALICIOUS

PDF

296.1 KB Created: 2022-03-16 00:23:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: d03ac07a5f7d6249d03bef3f451e2752 SHA-1: 28c5d6ceec27099c2407365c782720a1b9824070 SHA-256: 55065aca16fcb50993d107e25f590fd5e280641a30d4aefe2318ee51d21e7374
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6715

Heuristics 6

  • 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 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://horkolas-gatlas.hu/ufiles/file/7071560727.pdf In PDF document text
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/4f69eb36d32395027bd5e32dbe23f19f/87250808966.pdfIn PDF document text
    • http://cattaneoarchitetti.it/userfiles/files/xavovaxetoru.pdfIn PDF document text
    • https://dpmptsp.pemkomedan.go.id/dpmptspwebaplikasi/libraries/ckeditor/kcfinder/upload/files/28058906115.pdfIn PDF document text
    • https://gestionarival.com/userfiles/file/rejop.pdfIn PDF document text
    • http://bagsh.itpd.mn/kcfinder/upload/files/wulaworexaxemuzedur.pdfIn PDF document text
    • http://agcslohian.com/userfiles/file/fekosulutikufuxiwopo.pdfIn PDF document text
    • http://senkardeslerkereste.com/kcfinder/upload/files/setidijivuka.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/votomemiduguzajukusirep.pdfIn PDF document text
    • https://mail.conepe.org.br/public/ckeditor/kcfinder/upload/files/87211726408.pdfIn PDF document text
    • http://accuway.yun2u.com/upload/files/suferorawozedowuxukeze.pdfIn PDF document text
    • https://allmassage.net/upload/file/20220216070859.pdfIn PDF document text
    • https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/1620b79808b917---99206298223.pdfIn PDF document text
    • http://budoprojekt.eu/obrazy/file/kifagasabali.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16221c5bc97c26---tuxufe.pdfIn PDF document text
    • http://support-cmu.com/filedata/file/sumowifutizalomamotofoj.pdfIn PDF document text
    • http://angolfuvar.com/admin/ckeditor/kcfinder/upload/files/6826250601.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/7559595631.pdfIn PDF document text
    • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/1d65cc0f406d22be3dafa998d4b81df8/31641039614.pdfIn PDF document text
    • http://ipai-bg.eu/img/file/24358844272.pdfIn PDF document text
    • http://firewaterdamagedfw.com/test/fckeditor/uploadfiles/file/narek.pdfIn PDF document text
    • https://exihomes.com/userfiles/files/xofunebixorowokozepogo.pdfIn PDF document text
    • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f9693e0fe92---87581728096.pdfIn PDF document text
    • https://grandegroup.net/files/3856877282.pdfIn PDF document text
    • http://bukitjaya88.com/kcfinder/upload/files/81072710832.pdfIn PDF document text
    • http://rovitek.com/userfiles/file/fopatisabelevesetotoz.pdfIn PDF document text
    • https://www.nutfruit.org/js/admin/ckeditor/plugins/kcfinder/upload/files/39483837868.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622e22716fe0f---62319468464.pdfIn PDF document text
    • http://idolyokocho.com/js/ckfinder/userfiles/files/kavomaforibofix.pdfIn PDF document text
    • http://creaorganization.com/depo/sayfaresim/file/64396193512.pdfIn PDF document text
    • https://xn----7sbbg1ddpkdc.xn--j1amh/uploads/files/xivoriduferedutufatik.pdfIn PDF document text
    • https://huangs.tw/uploads/files/202202101701153669.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=bezubaan+ishq+movie+song++pagalworldPDF link annotation
    • https://slide-bearing.com/d/files/41733671165.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 extracted file (font_00_sfnt_off0004312c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004312c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004312c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4312C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00044847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44847 17784 bytes
SHA-256: 2294e45513e49be566a91e21f991402632e0bb65f0b9fb2eee68c1a3c07cbfbc
font_02_sfnt_off000476b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x476B2 11392 bytes
SHA-256: 58aae30d91615a285771aa3f3488ea2ccfb39069b2b5a99ee3d7314ef4549313