Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7624dff937168f…

MALICIOUS

PDF

392.7 KB Created: 2021-08-10 03:59:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 361d7cd05660be4ccb90ffcfbaa3932c SHA-1: 237f201a8937c01eb8ec8f3bc8e6b799b52beb84 SHA-256: cd7624dff937168f6b4e5002f4e90b384ddc20a84ded7f16a404156e410215a1
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8671

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 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://coretry.ru/uplcv?utm_term=the+tired+swimmer+a+case+study+on+the+nervous+system+answer+key PDF link annotation
    • https://bookatowncar.com/userfiles/file/wixejawokakuxavobes.pdfIn PDF document text
    • https://arch.ua/ckfinder/userfiles/files/lafirovusurutefukujusatuw.pdfIn PDF document text
    • https://ascinfratech.com/clientprojects/trading/file/tanifalawekamasofolak.pdfIn PDF document text
    • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/pe2l2sanpmfd9f8p6pdvu7ll49/xasorozokapojifolukir.pdfIn PDF document text
    • http://surrattsville69.com/clients/8/81/8122276c22396d7fa0996010cc369f50/File/kewefavurow.pdfIn PDF document text
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e009b7a6849---9680982689.pdfIn PDF document text
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160851419107ee---tijijusitupajazej.pdfIn PDF document text
    • https://fotobolfestmeny.hu/mvc/userfiles/file/zegijo.pdfIn PDF document text
    • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607dbe6aef778---xidusozarafamunu.pdfIn PDF document text
    • http://kaupa.cz/userfiles/file/89602037600.pdfIn PDF document text
    • https://binarbaidtrading.com/public_html/userfiles/file/wikeroxefuf.pdfIn PDF document text
    • http://faw-asia.com/image/upload/files/tizoxezaxe.pdfIn PDF document text
    • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/7cm3c4u370v4dcnbdtgfcami30/83342086362.pdfIn PDF document text
    • https://freshchannels.com/home/sites/freshchannels/public_html/ckfinder/userfiles/files/64754473648.pdfIn PDF document text
    • https://panificiopasticceriabattaglia.it/file/puserebowukomoxupuvux.pdfIn PDF document text
    • http://okna-stv.ru/userfiles/files/tagon.pdfIn PDF document text
    • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609484b9d514c---34313257945.pdfIn PDF document text
    • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1606e9d01a140c---41777232107.pdfIn PDF document text
    • http://cuatudongsaigon.vn/uploads/files/xarixumebamulebitep.pdfIn PDF document text
    • http://beta-rc.com/upload/files/nibilegapavobesuribopana.pdfIn PDF document text
    • http://automotiveenergy.cz/userfiles/file/79357290870.pdfIn PDF document text
    • http://vinag7furniture.com/app/webroot/files/editor_upload/files/64213800337.pdfIn PDF document text
    • https://cyklo-wellness-penzion-palice.cz/content/54584671658.pdfIn PDF document text
    • https://actioncoach.com.my/wp-content/plugins/formcraft/file-upload/server/content/files/1607a2b693fad9---5625485429.pdfIn PDF document text
    • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c0f145545e0---85106136210.pdfIn PDF document text
    • http://pileshoppen.dk/userfiles/file/wifolagoxilawafabalumul.pdfIn PDF document text
    • http://onlinemidias.com/ckfinder/userfiles/files/fokevuge.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005ae72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE72 11012 bytes
SHA-256: 75e75e65adf2789d557b39b2367ab23e4e7971309681c91f76e7de0d26a81ae4
font_01_sfnt_off0005c802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C802 18044 bytes
SHA-256: 74659721c640d626f85e219b6979bb43c6ee8519eaba654f2abf581253a2e6ab
font_02_sfnt_off0005f73c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F73C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1