Malicious PDF — malware analysis report

Static analysis result for SHA-256 19163fc8221f0b95…

MALICIOUS

PDF

249.5 KB Created: 2022-02-04 03:58:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 3ca28fc8a6265542bf9a90d37e620e76 SHA-1: e803844c88063945a995240c638a0209ac70f75c SHA-256: 19163fc8221f0b95a7ff147c7eb1a5fdba651ee4d0a15607756f74c8196540db
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8006

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://mifuj.co.za/XSRYdR1H?utm_term=oracle+business+intelligence+client+tools PDF link annotation
    • https://furedgym.webtarhely.org/webroot/upload/files/zofebiliwezejufixaj.pdfIn PDF document text
    • https://mamalight.net/business_school/uploads/file/25816180974.pdfIn PDF document text
    • http://opgzvh.hr/upload/file/bixurevaf.pdfIn PDF document text
    • https://adm-consult.band-cm.com/userfiles/files/jezuzifixiwaviv.pdfIn PDF document text
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1614bd50ce148e---16481884826.pdfIn PDF document text
    • http://phukientubepxinh.info/gomsu/sanpham/anh/files/wanuzakapizes.pdfIn PDF document text
    • http://52fotki.ru/ckfinder/userfiles/files/28734333813.pdfIn PDF document text
    • http://psn-monolit.ru/img_file/files/43815171892.pdfIn PDF document text
    • http://tochalco.com/uploads/files/30791000493.pdfIn PDF document text
    • http://yunnanyingxiang.com/ckfinder/userfiles/files/guxutuzoka.pdfIn PDF document text
    • http://wolfpackbasketballacademy.com/content_docs/zaxed.pdfIn PDF document text
    • https://alstar.uz/images/shared/file/8951094583.pdfIn PDF document text
    • https://dbjadow.pl/attachments/file/67162691709.pdfIn PDF document text
    • http://myxroad.net/upload/userfiles/file///82642043601.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/161aee4c40a144---kubaroruzikikowewusarupo.pdfIn PDF document text
    • http://goldia.cz/data/file/28409654024.pdfIn PDF document text
    • http://oletrans.sk/editor_uploads/files/78613731676.pdfIn PDF document text
    • http://kurumakaitori-one.com/js/upload/files/molegapofavu.pdfIn PDF document text
    • http://stapper.de/sites/default/files/userfilesfile/58669857713.pdfIn PDF document text
    • http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/161afad440d6fb---633653829.pdfIn PDF document text
    • http://3colorjazz.com/fckeditor/userfiles/image/3021288816.pdfIn PDF document text
    • http://shinhwacar.com/userData/board/file/jerawepafunutetudom.pdfIn PDF document text
    • http://studiolaviano.it/userfiles/files/subagerupife.pdfIn PDF document text
    • http://dautuck.com/uploads/userfiles/file/71122950975.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/ahhqq889jlrbr558c29huffmlm/pitug.pdfIn PDF document text
    • http://kryotherapie.net/neu/userfiles/file/50710603885.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_off00037a4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37A4D 17148 bytes
SHA-256: 90d34cf7eaef8cb9ea375981319fa01d30546e799fea058347f8b9487eee6986
font_01_sfnt_off0003a736.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A736 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003be56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BE56 10672 bytes
SHA-256: d507d650c10a7657d065ca6a691eb661fbfe284c4f44a857e7da92aabe43c987