Malicious PDF — malware analysis report

Static analysis result for SHA-256 f990ab3949d3c876…

MALICIOUS

PDF

219.6 KB Created: 2022-01-01 23:03:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: fe883ee78ab3410f3475eb16e5b8d7c5 SHA-1: 02897688ac5087cdee469a8fdec6c66cd435b86a SHA-256: f990ab3949d3c87615cdf832eba77df9567ef51e73831c99614895a4e895202b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9716

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 http://slabowidzacy.smprzemysl.pl/ckfinder/userfiles/files/90995707237.pdf In PDF document text
    • http://tech-sub.com/userfiles/file/xevenoge.pdfIn PDF document text
    • http://easytravel63.ru/ckfinder/userfiles/files/nosobopibuk.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16181d56adf194---sikuvivijokotofaxifejiwu.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615bb495772f5---ganeteriwobuxegerozevowi.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1617c5a15f0666---januj.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/3bbb704641443937d96a100814b4499d/zixoridebuveb.pdfIn PDF document text
    • http://peterpan1996.it/userfiles/files/bifazekojoloxokerotisuri.pdfIn PDF document text
    • https://fiscalonline.eu/app/webroot/files/userfiles/files/27919120765.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/5eeqq5nklftng23b55tv3181v8/sadazexironatitegak.pdfIn PDF document text
    • http://buyyoutubelikes.com/ci/userfiles/files/23525298302.pdfIn PDF document text
    • https://bevillelecomte.ovh/ckfinder/userfiles/files/pirerobakegetutiwipolali.pdfIn PDF document text
    • http://kotolantopeni.cz/file/wezijakukefiwuvexowonoliw.pdfIn PDF document text
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b867dc58493---51240462337.pdfIn PDF document text
    • https://cometgroupinternational.com/ckeditor/ckfinder/userfiles/files/baminasofirumu.pdfIn PDF document text
    • http://ildungrice.com/fileupload/fckeditor/file/93155275090.pdfIn PDF document text
    • https://emailing-online.fr/uploads/userfiles/file/32068332220.pdfIn PDF document text
    • https://www.frontiermea.com/sites/all/libraries/ckfinder/userfiles/files/vebezabilapuluravodof.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/vItLtdF7Pec/uplcv?utm_term=cognos+advanced+reporting+trainingPDF 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 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_off0003029f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3029F 10740 bytes
SHA-256: 4ed4e6a626c53b2026ec7e48ec6fb20370a69dea8823926e6bb034a174dacabe
font_01_sfnt_off00031b4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B4E 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000331ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x331ED 17168 bytes
SHA-256: dba87ab7d601ff649810da14ffafbcefbcad82bc4b5aa345078bf402fb05df42

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