Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c9398815fbb8c2…

MALICIOUS

PDF

474.1 KB Created: 2021-12-22 07:19:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: f3dc2618bcb8e0a74dbc3badfe3f046e SHA-1: 549e0d8d627da7f08f253af471adc3ae9913d239 SHA-256: c0c9398815fbb8c20c9966c324fc53b4e89d70d8024e3c3aabc8ec8aedeeda2c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5627

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://axiomestates.com/userfiles/file/55930096142.pdf In PDF document text
    • https://molecult.metallo-tests.ch/sites/web/upload/files/84543622919.pdfIn PDF document text
    • http://cabanagarden.hu/editor_up/zadefetuwoj.pdfIn PDF document text
    • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16168b2b317879---leboreforadefo.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/161a8f93e9fa9a---xijezerisilupixale.pdfIn PDF document text
    • https://proxus.nl/file/89079679785.pdfIn PDF document text
    • https://fivetc.net/uploads/files/sisilidibelolilijexuvaz.pdfIn PDF document text
    • https://gabinetpro.pl/kosmetyczka/krakow/files/mokikema.pdfIn PDF document text
    • http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/zexodaxudo.pdfIn PDF document text
    • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/2cc6c2a8308e60a1d2a27fdae8b9f3f7/befimefegudufuledokeguri.pdfIn PDF document text
    • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/161501949855be---fogibitagiweniwojatujivis.pdfIn PDF document text
    • http://palami.by/images/file/temubabomawovapof.pdfIn PDF document text
    • http://www.offshoreyachts.net/web_upload/editor/files/73090476691.pdfIn PDF document text
    • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613375ff38ccf---79724530704.pdfIn PDF document text
    • https://electrodomesticaruano.com/images/ckfinder/files/35553867531.pdfIn PDF document text
    • http://lulanjina.net/upload/files/78131227997.pdfIn PDF document text
    • https://patriciogaete.com/upload/file/67194932828.pdfIn PDF document text
    • http://ohxto.com/uploaded_files/userfiles/files/93594513745.pdfIn PDF document text
    • http://studiodispirito.it/userfiles/file/55218159415.pdfIn PDF document text
    • http://eugensa.lt/app/webroot/uploads/userfiles/files/18237539065.pdfIn PDF document text
    • http://purepassion.pl/userfiles/file/89432292162.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1616cbf0973fd6---varudago.pdfIn PDF document text
    • http://www.gdchgs.com/admin/img/files/51279325469.pdfIn PDF document text
    • https://igruppe.no/ckfinder/userfiles/files/zotozosutadesa.pdfIn PDF document text
    • http://roseeskin.com/userfiles/file/20211216094704.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/oscUj7J0Gjw/uplcv?utm_term=ccir+army+templatePDF 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_off0006fc2a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006fc2a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006fc2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC2A 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off000712ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x712CE 10288 bytes
SHA-256: 43fdae1401024d6379d3b3b731db3988b1d50ce247b87082c30e12db2f8647d5
font_02_sfnt_off000729f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x729F7 18420 bytes
SHA-256: 0299265dea28459e291ba4872e065a1f363826b90133b9e410e6cf8a0fd576ff