Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df79b7ec65dee88…

MALICIOUS

PDF

323.3 KB Created: 2022-02-26 22:03:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-18
MD5: f5e570048c141aea564811b15cb310e6 SHA-1: 29394d2b731c596cbeb121620459c91d0ad67cf4 SHA-256: 6df79b7ec65dee88d4f1f7a4b2537a13851df33123ed331b79ad4542a79a04e9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6480

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://sensor4you.com/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202109/file/wapedilur.pdf In PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/16188a33c68f68---besuguvozivetidevunurodoz.pdfIn PDF document text
    • http://t-cso.com/upload/file_folder/file/35638732698.pdfIn PDF document text
    • http://luxcottage.ru/stroykamen/userfiles/files/vudatafuginemijipuna.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/161127d5632be7---12878332708.pdfIn PDF document text
    • https://art-eria.pl/mandarynka/pliki/files/2656097828.pdfIn PDF document text
    • https://senfina.top/uploads/files/mivixegedulexaraza.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/161d5c615efb20---nonewedevew.pdfIn PDF document text
    • https://gskrem.ru/img/file/vamodenamofatikatawul.pdfIn PDF document text
    • http://ricoconsultingattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wonelake.pdfIn PDF document text
    • https://investkwik.com/userfiles/file/fuxizur.pdfIn PDF document text
    • http://tokstar.com/_UploadFile/Images/file/23798560986.pdfIn PDF document text
    • http://kup-vino.cz/web/ckfinder/userfiles/files/29870816743.pdfIn PDF document text
    • https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/1b14e1484f436bd95a6e8f96b1ab312d/64797823525.pdfIn PDF document text
    • http://jfe.hk/userfiles/72658495768.pdfIn PDF document text
    • http://nagymester.com/userfiles/file/sotitoposifevufixinus.pdfIn PDF document text
    • http://adbuffalony.com/uploads/files/ruxiliwezi.pdfIn PDF document text
    • https://asiquim.com/ckfinder/userfiles/files/vifexet.pdfIn PDF document text
    • http://xlzfloor.com/uploadfile/fckedit/file/1643525958StSz.pdfIn PDF document text
    • https://gmt-tw.com/app/webroot/userfiles/files/94057272629.pdfIn PDF document text
    • http://supragyn.cz/userfiles/file/kinumeleburunajegug.pdfIn PDF document text
    • http://sztarmedia.hu/_user/file/77444157307.pdfIn PDF document text
    • http://vaonhaphatphap.com/images/uploads/files/bopodugakejipajuzon.pdfIn PDF document text
    • https://xn--interpeas-r6a.es/upload/files/71231612442.pdfIn PDF document text
    • http://confidenceagricare.com/assets/ckeditor/kcfinder/upload/files/42134909059.pdfIn PDF document text
    • http://poptheme.cn/uploadfile/files/20211213_000303.pdfIn PDF document text
    • http://debiut3028.fun4two.pl/uploads/assets/file/86049394524.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/031fa43965949932d662f1d8e9305048/zitunolameva.pdfIn PDF document text
    • http://xn----otbbfbbknchz.xn--p1ai/sadm_files/80343799047.pdfIn PDF document text
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/161a0759cab91e---24037445697.pdfIn PDF document text
    • https://nullemont.fr/nullemont/ckfinder/userfiles/files/ragejoregolapisaga.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=character+animator+cc+2018PDF 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_off00047d8f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00047d8f.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00047d8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47D8F 20924 bytes
SHA-256: 7f1919cccb5ecb283c5c07966d213a7cb0fd9e2bdd67398f157b7a52a019f546
font_01_sfnt_off0004b4c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B4C1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004cbe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CBE1 10812 bytes
SHA-256: 9ca9069f266ce39c26530cf198bf75022ee81ea2f5be640bca0b81330716a9fd
font_03_sfnt_off0004e4be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E4BE 16616 bytes
SHA-256: 06f1d5f5a9083a80364da0885936c8ddb2848b41a67694407b5e75bff462a068