Malicious PDF — malware analysis report

Static analysis result for SHA-256 191c20631c1abd04…

MALICIOUS

PDF

361.1 KB Created: 2022-03-09 05:27:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: fc2adb5d526953247ca9bdffc9b2b071 SHA-1: 04c458f1212e2593e6146e6e4b3b4bf44188c964 SHA-256: 191c20631c1abd0474d735c40f09bd17f197aabfc61d60183d83648cab3f9719
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6782

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://norin.co.za/XSRYdR1H?utm_term=wish+list+template+for+christmas PDF link annotation
    • http://saipanbooking.com/FileData/ckfinder/files/20220203_C8618EB30AA874EB.pdfIn PDF document text
    • http://namaslennikova.ru/kcfinder/upload/files/nakesakenu.pdfIn PDF document text
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16222c4e40e1c7---kobopuvarot.pdfIn PDF document text
    • https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/b8ca3b09262ed048c5b6bad7be084cfb/83228346958.pdfIn PDF document text
    • https://pima-alarms.eu/slicice/file/zigirifupebev.pdfIn PDF document text
    • http://learningkey.org/userfiles/45906095510.pdfIn PDF document text
    • http://tcpartners.vn/kcfinder/upload/files/zuturimajupapuputosabovaf.pdfIn PDF document text
    • http://na-bytecek.cz/UserFiles/File/8117496580.pdfIn PDF document text
    • https://binarbaid.com/public_html/userfiles/file/gazuroxepetutatomibuxo.pdfIn PDF document text
    • http://tvoirostov.ru/ckfinder/userfiles/files/numugobubu.pdfIn PDF document text
    • http://marisqueandopremios.com/campannas/file/wesoginifewurexivireluj.pdfIn PDF document text
    • http://bronia.org/userfiles/file/zeruxopirejo.pdfIn PDF document text
    • http://www.pethouse.es/ckfinder/userfiles/files/35555393932.pdfIn PDF document text
    • https://bbcodex.com/kcfinder/upload/files/85969735361.pdfIn PDF document text
    • http://nhatrangpalacehotel.com/app/webroot/upload/files/pixolajaxasizabodi.pdfIn PDF document text
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/s2a91igbi777bfca25utpocto0/87274266197.pdfIn PDF document text
    • https://olivermilk.com/tctt/sites/aaa/file/ravatik.pdfIn PDF document text
    • http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/80772809854.pdfIn PDF document text
    • https://poornasreehomeoclinic.com/ckfinder/userfiles/files/mogavumavez.pdfIn PDF document text
    • https://www.lacasadeltecle.com/imagenes/editor/file/46062852897.pdfIn PDF document text
    • https://rt-totaalafbouw.nl/userfiles/file/40298221896.pdfIn PDF document text
    • http://nprofit.hk/userfiles/81936530368.pdfIn PDF document text
    • http://www.cadex.biz/app/webroot/kcfinder/upload/files/zamazadujo.pdfIn PDF document text
    • http://tayles.com/uploaded/marosigan.pdfIn PDF document text
    • http://thangmayedex.com/webroot/img/files/88598012395.pdfIn PDF document text
    • http://grupa-energia.pl/attachments/file/18937513209.pdfIn PDF document text
    • http://spl-designs.com/ckfinder/userfiles/files/lujerusomejobaxog.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/se08p8mrgtqrb3583lhjtccn66/22840203955.pdfIn PDF document text
    • http://alkord.kz/app/webroot/js/kcfinder/upload/files/nojajojojavovafowobozigur.pdfIn PDF document text
    • http://bangladeshceramicsociety.com/uploads/editor/files/xijuji.pdfIn PDF document text
    • http://mothertheresapublicschool.com/userfiles/file/kiwigejifelopiz.pdfIn PDF document text
    • https://tktravelkorea.com/FileData/ckfinder/files/20220222_60E301C631F944FF.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1621f3c7b1d1bd---gagunukok.pdfIn PDF document text
    • https://sskundal.com/userfiles/file/43499943349.pdfIn PDF document text
    • http://tt-ural.su/admin/ckfinder/userfiles/files/69306534364.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000533c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x533C4 10636 bytes
SHA-256: 14669cec2d967ab090d1f5b579b9343eed9346beec0c79c11d10e9a4a28ca2d4
font_01_sfnt_off00054c1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54C1C 18856 bytes
SHA-256: 9c5942bf0071b08e8ea0a688a3bd02c9f463286c9eeb3f5e17fd6b1d9beaa4c6
font_02_sfnt_off00057d69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57D69 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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