Malicious PDF — malware analysis report

Static analysis result for SHA-256 de4f95ac4cde3b41…

MALICIOUS

PDF

445.1 KB Created: 2022-01-06 07:25:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: ecd010feec2118ece969873eb416e944 SHA-1: 01988fc4612d43ff8f939e3a84a3fded62360954 SHA-256: de4f95ac4cde3b415ff59b51388976368733cdd498b37a4f488cf4e6ec617fdc
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5902

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://traktorpulling.de/ablage/userfiles/files/neboweka.pdf In PDF document text
    • https://charlesstreetvideo.com/userfiles/file/23982086276.pdfIn PDF document text
    • http://www.srijonihealinghome.com/fckimages/file/xorivowivar.pdfIn PDF document text
    • https://medbillings.us/lightspeedweb1/file/dajijabijek.pdfIn PDF document text
    • http://optometrystaprzemysl.pl/userfiles/file/31263525052.pdfIn PDF document text
    • http://zaiger.ru/img/file/28276211530.pdfIn PDF document text
    • http://everestsherpatravel.com/demo/public/ckeditor/kcfinder/upload/files/kimelovogog.pdfIn PDF document text
    • http://klccpa.com/userfiles/file/jakotetogow.pdfIn PDF document text
    • https://office-agglo-larochelle.fr/userfiles/file/romerejo.pdfIn PDF document text
    • https://fp-088.flexxmedien.com/flexxtrader/data/usf/file/39489234881.pdfIn PDF document text
    • https://connatlas.com/home/conn/public_html/ckfinder/userfiles/files/52480258219.pdfIn PDF document text
    • http://minjar.mebel18.com/uploads/files/mopobawefomene.pdfIn PDF document text
    • https://www.personeriaitagui.gov.co/kcfinder/upload/files/silajovavisefavaxagita.pdfIn PDF document text
    • https://www.sensiblemachines.com/ckfinder/core/connector/php/files/55638683742.pdfIn PDF document text
    • http://abdobson-new.simplywebeditor.com/site-uploads/futifofefupenotox.pdfIn PDF document text
    • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/615a39c62063d3c63203bdab85df7d90/wepurorafiboxibewudakoge.pdfIn PDF document text
    • https://polaria.cz/images/file/vamisibedorataguke.pdfIn PDF document text
    • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161cf5204c0f5e---85738102604.pdfIn PDF document text
    • https://www.osteopathe-montpellier-sud.fr/ckfinder/userfiles/files/kadisarefujomopenagaja.pdfIn PDF document text
    • https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/22beac890aaffa908e84e67341f5b669/71516636521.pdfIn PDF document text
    • http://dbrostechnology.com.np/dbros/public/ckeditor/kcfinder/upload/files/37459182387.pdfIn PDF document text
    • http://xn--80aguejfegacgj0ad.xn--p1ai/pict/file/xukotazegorabuduledigiwav.pdfIn PDF document text
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/kj901k6iuo94hte90ikdeddskh/95793409339.pdfIn PDF document text
    • http://chinahongji.com/d/files/41850998156.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/RC0zOYPQW8A/uplcv?utm_term=infosys+agile+certification+questions+and+answersPDF 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_off00068688.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00068688.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00068688.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68688 18012 bytes
SHA-256: 34e5b14dabe5c3195998169078e037b383efc7eadb1cd79c5bab3020d4350250
font_01_sfnt_off0006b57f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B57F 11048 bytes
SHA-256: 67aaee11ac8d3b28bddbc0c17f8c17991ab68b3a878933a1595d09564b62789c
font_02_sfnt_off0006ceec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CEEC 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336