Malicious PDF — malware analysis report

Static analysis result for SHA-256 634ab7ee1dff3850…

MALICIOUS

PDF

256.8 KB Created: 2022-03-05 22:08:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: a2c43a5ac60111f47c78216c7e7a8754 SHA-1: ad552e67514c974be5ee62e33af40e7b7a87b358 SHA-256: 634ab7ee1dff38507dec9c7809372bb1dee9398ef1bea0cb1a0625724ebe25d3
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8561

Heuristics 5

  • 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.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=referat+atresia+ani+pdf PDF link annotation
    • http://weddingfavoursfor.co.uk/kcfinder/upload/files/36802691309.pdfIn PDF document text
    • https://averakazan.ru/kcfinder/upload/files/68207954388.pdfIn PDF document text
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/f02c30584c8a047208c87159279fb838/63365671066.pdfIn PDF document text
    • http://28777886.com/Lpf/UPFILE/userfiles/files/meloxologimerubovaw.pdfIn PDF document text
    • https://orangevelodrometrail.fr/img/uploads/files/31385507782.pdfIn PDF document text
    • https://aldwalia.com/userfiles/files/dikuza.pdfIn PDF document text
    • http://dhs-bank-sample.com/app/webroot/js/kcfinder/upload/files/85604348931.pdfIn PDF document text
    • http://profuturis.be/kcfinder/upload/files/rusagafijubuwoxiseriw.pdfIn PDF document text
    • http://sashtraayurveda.com/ckfinder/userfiles/files/17165223098.pdfIn PDF document text
    • https://www.silverskilled.com/gateway/kcfinder/upload/files/20381443498.pdfIn PDF document text
    • https://imagebuzz.net/ckfinder/userfiles/files/topapisabagugijima.pdfIn PDF document text
    • https://insetclean.com.br/kcfinder/upload/files/maredoravene.pdfIn PDF document text
    • http://brmxn.com/userfiles/file/20220206105651_4swlpi.pdfIn PDF document text
    • http://stefanourso.com/public/userfiles/file/70071704879.pdfIn PDF document text
    • http://nepaldristi.com/dbros/public/ckeditor/kcfinder/upload/files/tagibizebevupisavom.pdfIn PDF document text
    • http://vivo-mebel.ru/upload/file/49425572252.pdfIn PDF document text
    • https://soportedevida.mx/ckfinder/userfiles/files/78438271733.pdfIn PDF document text
    • http://apoiotelecom.com/imagens/img_fckeditor/file/wezon.pdfIn PDF document text
    • http://iks.premoweb2.at/userfiles/file/kelobe.pdfIn PDF document text
    • http://mobilesamara.com/img/files/file/wunile.pdfIn PDF document text
    • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/161fe39a78e0f4---wikep.pdfIn PDF document text
    • http://getsolarny.com/userfiles/file/xemuwawizimonokuwojowo.pdfIn PDF document text
    • http://www.oe.com.tw/ezadmin/ckfinder/userfiles/files/tuxerezesipez.pdfIn PDF document text
    • http://ingore.cn/upload/files/vikinelumenajakoxakaruraj.pdfIn PDF document text
    • http://yevres.fr/ckfinder/userfiles/files/64539850680.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_off000392ec.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000392ec.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000392ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x392EC 18864 bytes
SHA-256: 9bc2e9c178f1578ec5f9abf51b5ddf7c95b7284b631fee2fd078e1300590fc61
font_01_sfnt_off0003c52d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C52D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003dc4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DC4D 10368 bytes
SHA-256: f2fa39ad99def144b6cfc6591908c73304567f88eb4b023d7c3dcdc0350616ad

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