Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6d13a7450b3bc7…

MALICIOUS

PDF

272.2 KB Created: 2022-03-26 02:06:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 58713f01d7c873e10eafeb0990871b2f SHA-1: 8b13127ab2d2bde7a2f6fe7176c16480282c5fb0 SHA-256: 8f6d13a7450b3bc71b5ce02fc4eb9fb5a213e6c7f586b5ed5067f3f116b72cc9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7707

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://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620074c6216f6---95204965189.pdf In PDF document text
    • https://gheysenreal.com/uploads/files/95890580504.pdfIn PDF document text
    • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16218e18d5fecb---5824326776.pdfIn PDF document text
    • http://letnipohar.cz/upload/file/ziwimaxunalagusawekolij.pdfIn PDF document text
    • https://paintingwithapassion.com/nbloom/fckuploads/file/21429487713.pdfIn PDF document text
    • http://kronikarp.pl/ckfinder/userfiles/files/wejepi.pdfIn PDF document text
    • https://albizy.com/ckfinder/userfiles/files/nixixinoratokelaludaxawi.pdfIn PDF document text
    • http://sostrevalli.it/userfiles/files/lozipuzu.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fbeaab08b82---relutupekawijomine.pdfIn PDF document text
    • http://obraz-tlt.ru/userfiles/file/vofajarudutogi.pdfIn PDF document text
    • https://fpempresa.cen.es/userfiles/files/16859669401.pdfIn PDF document text
    • http://3dprofi.net/images/uploads/file/kapogolumepovewoz.pdfIn PDF document text
    • http://cdenito.net/userfiles/file/24473483019.pdfIn PDF document text
    • http://theonejsc.com/userfiles/file/tudurokaxizevof.pdfIn PDF document text
    • https://apskarota.org/userfiles/file/51273894874.pdfIn PDF document text
    • http://chupanhnoithat.vn/upload/files/jazixupaguvabawigi.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621c9a208deb5---rurubudumuzoredowum.pdfIn PDF document text
    • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/bb28516838394af92f2db13a50b50ae7/mawovota.pdfIn PDF document text
    • http://ciccioinpentola.com/userfiles/files/solekidipevidojixumezomes.pdfIn PDF document text
    • http://www.aippc.net/kcfinder/upload/files/solijimamobagiwoj.pdfIn PDF document text
    • http://rockycheng.com/ckfinder/userfiles/files/demisojogexutuzuseb.pdfIn PDF document text
    • http://bilafafafa.com/shopadmin/upload/files/tojixiwutewu.pdfIn PDF document text
    • http://www.louervendreaumaroc.com/kcfinder/upload/files/buvudedixetoxofipef.pdfIn PDF document text
    • https://rosettes.it/userfiles/file/dusobedudimajor.pdfIn PDF document text
    • http://digitalpolicycouncil.org/imagenes/file/pikiwagikurubemurajekekid.pdfIn PDF document text
    • http://janjoling.com/public/ckfinder/userfiles/files/bepiduf.pdfIn PDF document text
    • http://alnadaoil.com/userfiles/file/22864650844.pdfIn PDF document text
    • http://mezon.jp/userfiles/file/67595200767.pdfIn PDF document text
    • https://sunuf.co.za/XSRYdR1H?utm_term=cnn+live+freePDF link annotation
    • http://eventechsite.com/files/files/zovugadorivuzu.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_off0003d22a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003d22a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003d22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D22A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003e949.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E949 9756 bytes
SHA-256: e8dcf0f2ee63f9c566cb991ff6ed9f6bf570e8c316ff44c24433944d2cb6bb53
font_02_sfnt_off0003feaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FEAA 19676 bytes
SHA-256: 5e4ed1d87e0b3693a0f5454776410769f029d2b075c6b89b7864946da72f4e0c