Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d1d078b568b36f…

MALICIOUS

PDF

469.0 KB Created: 2022-02-09 23:02:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 734eb63eb5aa4112e76776d6743cc3e7 SHA-1: 931946bc1a6a45b95fe3aa6193d36c7021fc371f SHA-256: c5d1d078b568b36ff5906de80721ddcf54bea49b62c25ce6ac8ae58266883f01
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4300

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://sunuf.co.za/XSRYdR1H?utm_term=call+of+duty+movie+hd+free PDF link annotation
    • http://diar.pkauto.sk/images/_file/48385949286.pdfIn PDF document text
    • http://harrodsrentacar.com/public_html/userfiles/file/zutufeke.pdfIn PDF document text
    • http://hairtransplantmangalore.com/uploaded_files/userfiles/files/depalinixubikuxanuj.pdfIn PDF document text
    • http://www.huescalamagiaenfotos.com/userfiles/files/muwidikepibuw.pdfIn PDF document text
    • http://botan-koubou.com/js/kcfinder/upload/files/54334373850.pdfIn PDF document text
    • http://tramtronbetong.com/uploads/userfiles/file/vupoxokipudetememinibomam.pdfIn PDF document text
    • http://catmo.fr/kcfinder/upload/files/vibid.pdfIn PDF document text
    • https://trouver-une-ssii.com/img/pics/files/tadujidozosumulamug.pdfIn PDF document text
    • https://youkuvpn.com/upload/files/28925509907.pdfIn PDF document text
    • https://gregor-biffiger.ch/userfiles/file/64715012392.pdfIn PDF document text
    • https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/97660752413.pdfIn PDF document text
    • http://murielbellhomes.com/userfiles/files/mukisofe.pdfIn PDF document text
    • http://share-world.tw/userfiles/file/wadipukujur.pdfIn PDF document text
    • http://agilesolutions.in/uploads/wiwadarikiketator.pdfIn PDF document text
    • http://togclick.com/media/userFckfiles/file/30178712636.pdfIn PDF document text
    • https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/5ce68ce2e48f0b7f5fa0b68f7f1a92ac/fidevapupitunokutot.pdfIn PDF document text
    • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148ea7489dfa---rudewewedibim.pdfIn PDF document text
    • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16121a442b77ac---mapesexubut.pdfIn PDF document text
    • http://oxigensupplies.com/shipinc/userfiles/files/xatoni.pdfIn PDF document text
    • https://nomortiga.com/contents//files/43077006352.pdfIn PDF document text
    • http://servicedental.it/userfiles/files/99449334087.pdfIn PDF document text
    • https://pontus-sd.eu/uploads/file/29736585391.pdfIn PDF document text
    • http://profiklub.sanswiss.cz/files/file/wesotenosejobekafazo.pdfIn PDF document text
    • http://kbfrutos.sk/images/_file/vufinabo.pdfIn PDF document text
    • http://magdrywall.com/project-new/christianbook/upload_images/file/bixed.pdfIn PDF document text
    • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1614e02ff65f32---37166806810.pdfIn PDF document text
    • http://jamesandsons.ca/userfiles/file/kuwawatuzuxapo.pdfIn PDF document text
    • http://ristoranteyuri2.com/userfiles/file/27033605342.pdfIn PDF document text
    • http://tznjl.com/userfiles/files/75132144827.pdfIn PDF document text
    • https://hospis-kazan.ru/files/bevijuzuvefunem.pdfIn PDF document text
    • https://educationindiajournal.org/ckfinder/userfiles/files/31043853551.pdfIn PDF document text
    • http://descanso.verareyes.com/ckfinder/userfiles/files/pofopusetujo.pdfIn PDF document text
    • http://ventmetal.ru/userfiles/files/61679854938.pdfIn PDF document text
    • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/214743eb869b664e5c46679e1768c30b/vafulilufevusixiwemo.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006cbf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBF1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006e30c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E30C 19428 bytes
SHA-256: 4d0d1ef3d5f8c24e51081137590355c36c3f6e358ba1f5e9e7405bf253b1c4ae
font_02_sfnt_off00071550.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71550 10656 bytes
SHA-256: 3b455056b3a5ca9e38c26dea6c811b0919dce877430aea1604a71c4fa38d29c9
font_03_sfnt_off00072dc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72DC2 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa