Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d03967d9f77710…

MALICIOUS

PDF

296.7 KB Created: 2022-02-15 07:47:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: fa1ab4ecc76e9b765e72e9f99d202b3c SHA-1: a5bcb918505e664ecc5ae9d5d76d2d290d7d6599 SHA-256: b5d03967d9f77710275b71e31cfbe5ab8dec60f300490246675f3cac6ff42560
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7452

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 http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210727022256940746lsuotv.pdf In PDF document text
    • http://alvitraders.com/files/wojiwosaz.pdfIn PDF document text
    • https://lederstuhlshop.de/ckfinder/userfiles/files/mopakajev.pdfIn PDF document text
    • http://barsugo.com/ckfinder/userfiles/files/50228543413.pdfIn PDF document text
    • http://brandweeramsterdamamstellanden.nl/userfiles/file/83406190303.pdfIn PDF document text
    • http://www.catedralirodahaz.hu/data/editorfile/5788578859.pdfIn PDF document text
    • https://triyoga-tv.ru/userfiles/file/47339227870.pdfIn PDF document text
    • https://partnyor.az/userfiles/file/26440769850.pdfIn PDF document text
    • https://marthomaktrplrdiocese.org/ckfinder/userfiles/files/wejuxukujokuwusepumusozoj.pdfIn PDF document text
    • https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/8oekgiahj17c89tkvobmfb13pk/bajojabevisevabewa.pdfIn PDF document text
    • https://satnamunicipalcorporation.com/admin/ckfinder/userfiles/files/xatilosawoz.pdfIn PDF document text
    • http://aal.tw/uploads/htmlupload/files/liboxumojarife.pdfIn PDF document text
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/161563bc378342---70421246155.pdfIn PDF document text
    • http://mmckno2010.zkosuchdol.info/files/norumakizazajowev.pdfIn PDF document text
    • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/d3831b69fe187c91633ee3bbec0e9cc0/25971856419.pdfIn PDF document text
    • http://live-lessons.net/lcj/web/uploads/assets/file/53171813144.pdfIn PDF document text
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/161a8633f48cd8---56705920813.pdfIn PDF document text
    • https://www.swaraagmusic.com/public/templateEditor/kcfinder/upload/files/6206434896.pdfIn PDF document text
    • https://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/54682672026.pdfIn PDF document text
    • http://www.enjoyvaltellina.it/admin/ckfinder/userfiles/files/duguroraseduduv.pdfIn PDF document text
    • http://wuyioutdoor.com/userfiles/file/45972690409.pdfIn PDF document text
    • http://garage-fuji.jp/js/upload/files/97403352142.pdfIn PDF document text
    • https://shiprapublication.com/uniformkontakt/userfiles/image/files/bibosejowom.pdfIn PDF document text
    • https://dverimilana.ru/media-temp/img/uploads/files/64255910455.pdfIn PDF document text
    • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/0f66f4760959cd9f370ad380a77033dd/84520746156.pdfIn PDF document text
    • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16183457649c82---38125242022.pdfIn PDF document text
    • http://broadmoor79.com/clients/864886/File/18102577807.pdfIn PDF document text
    • https://sunuf.co.za/XSRYdR1H?utm_term=definition+of+personal+information+data+breach+notificationPDF link annotation
    • 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_off0004310a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004310a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004310a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4310A 11024 bytes
SHA-256: 31e17474d90743023e5f53433fd290addb36d8dc9223c828598babdf9ca0964f
font_01_sfnt_off00044a40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44A40 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004615b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4615B 19256 bytes
SHA-256: 46b8ac7924e74529c7001391351f4f5be8756eceb5eb26d391546f504ce99bac