Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbeb4db7b6c39d09…

MALICIOUS

PDF

376.4 KB Created: 2022-02-24 21:48:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 55ea4a8f01a6c8c15a4de0f81e3f9368 SHA-1: 4774fcb9f8cd772c27e9b4fd15c7f32e9fc36f2d SHA-256: cbeb4db7b6c39d094c827af1183b057c9bb47b5990850fcb25afbb7139371fbc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6197

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 https://fecuq.co.za/XSRYdR1H?utm_term=book+review+example+college+level+pdf PDF link annotation
    • http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16164a48708d45---tamebapazinij.pdfIn PDF document text
    • https://galerie-louise.be/userfiles/files/zawijakuxubizoz.pdfIn PDF document text
    • http://honda-vo.com/upload/file/68991378732.pdfIn PDF document text
    • https://tanhoaphat.vn/userfiles/file/nebagalezip.pdfIn PDF document text
    • http://jfac.kr/ckfinder/userfiles/files/xotat.pdfIn PDF document text
    • https://ptogel2.com/contents/files/luwepurijibenebir.pdfIn PDF document text
    • https://rocksoliddesigns.biz/userfiles/file/40895466480.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16164b23a013d7---vorimimita.pdfIn PDF document text
    • http://sport-celebrity.com/app/webroot/kcfinder/upload/files/76244208045.pdfIn PDF document text
    • http://eiffelflowersquesnel.com/userfiles/file/69433705060.pdfIn PDF document text
    • https://stealthwindow.tw/uploads/files/202108142055463007.pdfIn PDF document text
    • https://xosobacninh.vn/webroot/img/files/50955605931.pdfIn PDF document text
    • http://www.evisiontiendaonline.com/ckfinder/userfiles/files/62796108855.pdfIn PDF document text
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e768c4e8cc5---50433437941.pdfIn PDF document text
    • http://mimarathi.live/assets/ckfinder/core/connector/php/uploads/files/13783188450.pdfIn PDF document text
    • http://www.egymast-segito.hu/uploaded/fck/file/93893189440.pdfIn PDF document text
    • http://avrig35.ro/uploads/fck_editor/file/rexexisik.pdfIn PDF document text
    • http://polishedskincare.com/minaret/uploads/file/52111293994.pdfIn PDF document text
    • http://builderall.info/userfiles/file/zewuvisefiwezowunuvawese.pdfIn PDF document text
    • http://gidaero.com/upload/fckeditor/file/58139149017.pdfIn PDF document text
    • https://diphong.com/uploads/xekigimisobisupisa.pdfIn PDF document text
    • http://qhchemicalsfeed.com/upload/files/32703480709.pdfIn PDF document text
    • http://www.lesboutiquesquercitaines.com/kcfinder/upload/files/befam.pdfIn PDF document text
    • http://sindcomerciarioscs.org.br/adm/kcfinder/upload/files/45964044498.pdfIn PDF document text
    • http://help-avocat.fr/js/kcfinder/upload/files/wobetela.pdfIn PDF document text
    • http://pradakshinam.com/fck_uploads/file/15073996529.pdfIn PDF document text
    • http://theseadiaries.com/ckfinder/userfiles/files/71438409586.pdfIn PDF document text
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/161544eb30567d---povidanova.pdfIn PDF document text
    • https://autosaloncenter.com/uploads/file/xubonarejewozejugozajev.pdfIn PDF document text
    • http://akademibt.com/resimler/files/murosebujiwofitulaburolu.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_off00056fd5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00056fd5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056fd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56FD5 18784 bytes
SHA-256: 8586bf2c22bdb5a8feaf0934596b8ae9db87c0e8adb6e0242169abc43f5a896f
font_01_sfnt_off0005a151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A151 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005b871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B871 10992 bytes
SHA-256: e993a16157969084cbdf92eb20c0d1c1e6e28de6d2cb64c025b6aa3f224daed6