Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df9383e25375cd6…

MALICIOUS

PDF

404.4 KB Created: 2022-03-05 00:35:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 34164eb64530deae4e5410e40108186b SHA-1: d7cf3f561aecaeae146141011fa1a75ac7844f8d SHA-256: 6df9383e25375cd6617ebdf10a5e8fac92d72a902ec7a23125853b20a8bc06e2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8133

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://loheb.co.za/XSRYdR1H?utm_term=choir+uniforms+in+nigeria PDF link annotation
    • http://stavebniny-pyramida.cz/admin/upload/files/patukoful.pdfIn PDF document text
    • http://cdn.eagle.mn/uploads/userfiles/files/61980200800.pdfIn PDF document text
    • http://specel.kz/app/webroot/js/kcfinder/upload/files/sewonaterisalegojikis.pdfIn PDF document text
    • https://debcopharma.com/userfiles/file/10018207625.pdfIn PDF document text
    • http://greenlasthousing.com/admin/kcfinder/upload/files/45437011882.pdfIn PDF document text
    • http://ave-france.com/pics/files/werifokasuw.pdfIn PDF document text
    • https://nepalonetours.com/userfiles/files/mukazevodaxoribigetedom.pdfIn PDF document text
    • https://cf2019.codefon.hu/js/ckfinder/userfiles/files/xafakukalemor.pdfIn PDF document text
    • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fa7657e7bc5---55695818597.pdfIn PDF document text
    • https://www.yukule.com/ToBeDeleted/admin-assets/js/ckeditor_4.6.2_standard/kcfinder/upload/files/58870397028.pdfIn PDF document text
    • https://hgqq.hk/tony/churchofgod/ckfinder/userfiles/files/28364758033.pdfIn PDF document text
    • http://cnfgl.netsociality.com/upload/files/lowiwifopibotuja.pdfIn PDF document text
    • http://papianiarch.it/userfiles/files/15257798865.pdfIn PDF document text
    • http://chenruichem.com/upload/files/veleralilojabozi.pdfIn PDF document text
    • http://senkardeslerkereste.com/kcfinder/upload/files/507772280.pdfIn PDF document text
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/16205b3cfa96ae---77977503464.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16201b73e2a998---fibeborugosubisomewit.pdfIn PDF document text
    • http://thienanglass.vn/upload/files/99266355569.pdfIn PDF document text
    • http://language-coach.pl/uploads/files/funowogusixaleja.pdfIn PDF document text
    • http://bellamy.tw/uploads/files/202203010509511108.pdfIn PDF document text
    • http://westfield.qa/multimedia/userfiles/file/651421710.pdfIn PDF document text
    • http://drthchowdary.net/userfiles/file/wigisujonimot.pdfIn PDF document text
    • http://marjoleintje.nl/include/userfiles/kofupepikisewojubejet.pdfIn PDF document text
    • https://apra.pl/files/file/46123292448.pdfIn PDF document text
    • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621084c96cd83---46694101376.pdfIn PDF document text
    • http://schneider-glossa.ru/kcfinder/upload/files/bifip.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_off0005e058.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005e058.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005e058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E058 19724 bytes
SHA-256: 9d230270535dac712a65f292c93f40703245bb262ab2ca672169895e25ca7eb2
font_01_sfnt_off000613cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613CF 10648 bytes
SHA-256: 128bb530e6435bd7ddf4bd42d74682f4046fb1b4ddd7251860e122b046de5c19
font_02_sfnt_off00062c0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C0A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9