Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6e8a3358810de55…

MALICIOUS

PDF

458.8 KB Created: 2022-03-22 23:50:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-17
MD5: 0fe842ac92375e577860288862a45d7e SHA-1: d41a9a64a7f95fe3f693a8515934c7d8e4bdbcad SHA-256: b6e8a3358810de555764b214d5aaabcc696b47a28a739e27675bbeff4f7eab6e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4612

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 http://www.rhkapadia.org/Admin/plugins/kcfinder/upload/files/zuvijisanikofopozozagube.pdf In PDF document text
    • http://ktimavoyatzi.gr/images/files/files/gitutuwisemij.pdfIn PDF document text
    • https://terminal.hr/userfiles/file/kozinot.pdfIn PDF document text
    • http://guerrazzi.info/userfiles/files/gawevutajuzalasusabedup.pdfIn PDF document text
    • https://ambient-interier.cz/files/files/zemibusafobiwezafiziw.pdfIn PDF document text
    • http://alefart.ru/admin/ckfinder/userfiles/files/4747452300.pdfIn PDF document text
    • http://meyergarden.com/ckfinder/userfiles/files/dilukavi.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/hm79d8v4hat1kp3uchq6ugecog/maremuji.pdfIn PDF document text
    • http://www.iccet.org.tr/kcfinder/upload/files/pijamixazomujatelin.pdfIn PDF document text
    • http://alpinedelhi.com/userfiles/files/pofevaxorajapusiji.pdfIn PDF document text
    • https://febrerasesores.com/uploads/kcfinder/upload/files/jevafimupufepe.pdfIn PDF document text
    • http://shsuorui.com/uploadfiles/fckeditor/20220308/file/16467097237284.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621ac05107227---koletileduwidolomidagijen.pdfIn PDF document text
    • https://songhong-thudo.com/img/files/ziroxewarixona.pdfIn PDF document text
    • http://xn--42-jlclgg6a3e.xn--p1ai/userfiles/file/duforuruvideba.pdfIn PDF document text
    • https://sahyadrisevasanstha.in/userfiles/file/rozid.pdfIn PDF document text
    • http://www.premiumimport.nl/ckfinder/userfiles/files/2412494096.pdfIn PDF document text
    • https://wasael.com/userfiles/file/30961839469.pdfIn PDF document text
    • http://dylogistics.com/userData/board/file/zegadepudukinoz.pdfIn PDF document text
    • https://amc-lda.com/assets/kcfinder/upload/files/71629474325.pdfIn PDF document text
    • http://artvideo74.ru/upfiles/files/fogofugelovanujelubofulo.pdfIn PDF document text
    • http://trailerdepot.ca/site-uploads/joropuzotisabonidimutin.pdfIn PDF document text
    • http://struna.bg/admin/kcfinder/upload/files/82768095306.pdfIn PDF document text
    • https://pass-eco-energies.com/ckfinder/userfiles/files/zumimujetoraduwepusu.pdfIn PDF document text
    • https://sieuthimaytinhcu.vn/upload/files/22546069938.pdfIn PDF document text
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/91sfm0um5rsedklbc48qk3p4v3/xonomet.pdfIn PDF document text
    • http://celox-st.hr/sites/default/files/fck/file/97474229419.pdfIn PDF document text
    • http://naphotelbangkok.com/userfiles/files/xatijibebino.pdfIn PDF document text
    • http://www.leinsterdancing.com/uploads/files/67783821380.pdfIn PDF document text
    • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/162131dfccb57e---gixakekuzanabexelurazigi.pdfIn PDF document text
    • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/1621f5ba34f972---94175433013.pdfIn PDF document text
    • https://mifuj.co.za/XSRYdR1H?utm_term=three+rivers+trail+pittsburghPDF 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_off0006a33b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006a33b.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006a33b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A33B 19184 bytes
SHA-256: 720d6c0c3acdcc26cd1b3c8df4b7b405e13a1e52eed52842b39511b53f24c7f0
font_01_sfnt_off0006d5d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5D6 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_02_sfnt_off0006ebd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBD8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off000702f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702F8 10576 bytes
SHA-256: a943437651ccbb62a2d7625a393b4259f4f4827dfd981e58fef49100a371bed8