Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d0dab286fd383f…

MALICIOUS

PDF

376.9 KB Created: 2022-01-14 07:17:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 463d16571842ef5d817a3414dc6f1212 SHA-1: b65f046bf9072f7de7da36fe5f324f6c933bcff9 SHA-256: c5d0dab286fd383ffc1433345067917d22c8979e3d7d858505ba7d3e4e99de4e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7525

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.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/d011c3793d29e5bc92abc8903c4c2933/6281484512.pdf In PDF document text
    • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/558d5a030e248e227277cb98a58fbeff/gexelakaxogumumigogiju.pdfIn PDF document text
    • http://kommunikator.nu/demo/userfiles/file///zinuvoxipufolitelon.pdfIn PDF document text
    • http://clinicaveterinariaalbese.eu/userfiles/files/9772335984.pdfIn PDF document text
    • https://dalycity.com/wysiwygfiles/file/41290059503.pdfIn PDF document text
    • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16162ccc09e6a8---pisimiwularuxub.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b6e325c23c---63196373106.pdfIn PDF document text
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616075c5a85dc---sokezixiritoxegu.pdfIn PDF document text
    • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/5cd5095c45d1dc44f1d628c5daf0e4dd/torabeb.pdfIn PDF document text
    • https://carsen.sk/editor_uploads/system/files/regubuvomanejunibitet.pdfIn PDF document text
    • https://meganimal.pt/site/upload/file/73606270227.pdfIn PDF document text
    • https://siangyun.com/upfiles/editor/files/luxusosofibibaloxodinam.pdfIn PDF document text
    • http://angarakshaksecurity.com/userfiles/file/31963701148.pdfIn PDF document text
    • http://greddy.com/admin/common/ckfinder/userfiles/File/zufosuwuwakaxiguvu.pdfIn PDF document text
    • http://speednewslive24.com/assets/ckfinder/core/connector/php/uploads/files/76717371769.pdfIn PDF document text
    • http://cariboohose.com/userfiles/file/66140774662.pdfIn PDF document text
    • https://wanfutemple.urwaydesign.com/data/file/userfiles/files/92723832167.pdfIn PDF document text
    • https://kingwaterpure.com/ckfinder/userfiles/files/67727931114.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/1ad9627db95fb25cfbffeca8cc4d84b7/28799331153.pdfIn PDF document text
    • http://nifaelectronics.com/userfiles/file/90141926636.pdfIn PDF document text
    • http://matrix-corporation.com/upfiles/editor/files/fatusiji.pdfIn PDF document text
    • http://kingsfinancialconsulting.com/userfiles/file/lelivaforigigofuson.pdfIn PDF document text
    • https://unique-u.biz/images/uploads/file/75227514960.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/BcFPVxLj4jw/uplcv?utm_term=annulment+in+ny+formsPDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000576c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x576C9 18356 bytes
SHA-256: 310e90919a2dea508cb14746043660fca72234fc1610a296add225e5419d35ca
font_01_sfnt_off0005a6cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A6CC 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0005bd70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD70 10408 bytes
SHA-256: 228a3fdea787b2059b59a3614ec670be8119d1682b29f8173a746de737cd4603