Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d84cd9871c39d0d…

MALICIOUS

PDF

464.5 KB Created: 2022-01-19 22:13:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 0e81cde1e1ee6d2cffbc9eed14953168 SHA-1: 8c64f75f3d3f909f71e3c18eff2dfcf8ee7afaab SHA-256: 5d84cd9871c39d0dff33af7b6fde4f393d0987ebeac05c457ef3ff6789ef23ef
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5298

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 http://bebaldebaran.eu/userfiles/files/vajaxagukozefuzaxoden.pdf In PDF document text
    • http://rockhouseschool.com/rockhouse/uploads/files/5847766222.pdfIn PDF document text
    • http://udmvdpo.ru/images/files/83950003024.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/16191a6aeacc40---99113419001.pdfIn PDF document text
    • http://surinmajestic.com/phya/ckfinder/userfiles/files/75535745144.pdfIn PDF document text
    • http://kollegium-szombathely.ferencesek.hu/files/file/91473933105.pdfIn PDF document text
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/cfe8720d022dff6c92948f8951e47e15/69498279082.pdfIn PDF document text
    • http://wflyyxzrgs.com/uploadfile/file/c165c20e8e055ddde841645a90a1a026.pdfIn PDF document text
    • https://olivierdaulte.com/ckfinder/userfiles/files/fikizun.pdfIn PDF document text
    • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/ca62f15cae6f317d0623b4ebce8864cf/simojidadapu.pdfIn PDF document text
    • http://maximaviajes.com/FCKfiles/file/rewomiluwepepabegoloriko.pdfIn PDF document text
    • http://naturestuff.nl/siteimages/file/56109730595.pdfIn PDF document text
    • http://sudeoksa.com/userfiles/file/20211117185449.pdfIn PDF document text
    • https://svarovanijelinek.cz/ckfinder/userfiles/files/22785586489.pdfIn PDF document text
    • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cedb4feb668---diwataremozevajaje.pdfIn PDF document text
    • http://grupa-energia.pl/attachments/file/71891178970.pdfIn PDF document text
    • http://fixafilm.se/userfiles/file/gafobajubujibewewu.pdfIn PDF document text
    • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/16176d52f79862---werarax.pdfIn PDF document text
    • http://aqcorth.specialty-match.com/upload/files/51994022257.pdfIn PDF document text
    • http://cfboxrx.com/js/kcfinder/upload/files/88257188571.pdfIn PDF document text
    • https://macjiboter.macjahisa.si/files/file/xisodaw.pdfIn PDF document text
    • http://aescantabria.es/upload/fckeditor/file///lubukok.pdfIn PDF document text
    • http://niszczeniewaw.pl/userfiles/file/roxokabeze.pdfIn PDF document text
    • https://soechi.com/userfiles/file/84994839445.pdfIn PDF document text
    • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/3d2413fda64a6151160f288da63e9f0c/28473922128.pdfIn PDF document text
    • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16132848ad60b8---gifokata.pdfIn PDF document text
    • http://flooroverstock.com/admin/userfiles/file/21054889590.pdfIn PDF document text
    • https://finliz.lt/i/File/xixegomebi.pdfIn PDF document text
    • http://aeusjtu.pretty-match.com/upload/files/xovawu.pdfIn PDF document text
    • https://whatproperty.ng/ckfinder/userfiles/files/neraxuvekofaj.pdfIn PDF document text
    • http://avatars.ru/userfiles/file/19031015227.pdfIn PDF document text
    • http://barefoot.pl/userfiles/file/12097722952.pdfIn PDF document text
    • http://giahung.tincorner.com/uploads/files/nezajaxunujo.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/qa6iu4v53t24am9gggionii586/81194242129.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/UsNeCLCzgYg/uplcv?utm_term=antologia+de+cuentos+oscuros+pdfPDF 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_off0006cebe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CEBE 10876 bytes
SHA-256: 1333c0f3608ebf8fab077df0cbdb4e23b3cd557f8020de83922383dcb4827b7f
font_01_sfnt_off0006e7d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E7D5 19364 bytes
SHA-256: 4edb657a1867c7d8805a19929359bf64cccc547d4e9d0af2bca83fe36ec3165d
font_02_sfnt_off00071983.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71983 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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