Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b0453f01d3716a…

MALICIOUS

PDF

557.6 KB Created: 2022-03-07 03:23:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: b22efbb39246a456ca23d7bd416151b8 SHA-1: 78093660c0f07d6b3e5a6b2492c197fb80f06111 SHA-256: 72b0453f01d3716a13d44072a564e2a2b49dbc785a1e4d116e0bb3b078eb36be
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4382

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://cafij.co.za/XSRYdR1H?utm_term=indefinite+and+definite+articles+worksheet PDF link annotation
    • http://defendo.hu/admin/kcfinder/upload/files/32799118514.pdfIn PDF document text
    • https://myleague.vn/uploadfiles/kcfinder/files/gunofenifaxonebonifoguwes.pdfIn PDF document text
    • https://aonetreks.com/uploads/file/80254652043.pdfIn PDF document text
    • http://www.klub112.cz/upload/files/kowekituvafemi.pdfIn PDF document text
    • http://cuspsurgeons.com/admin/kcfinder/upload/files/29014217792.pdfIn PDF document text
    • http://babijie.com/upload_fck/file/2022-2-18/20220218152146867775.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/162253569e4146---meduraturatixomewugabemi.pdfIn PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16213d031af9d8---kigasolutasozibi.pdfIn PDF document text
    • https://horkolas-gatlas.hu/ufiles/file/46918337393.pdfIn PDF document text
    • https://dlt-nkp.com/fileupload/file/xapetugejafafevo.pdfIn PDF document text
    • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/3529e5af256262f0511db879d9cb59c2/64945877033.pdfIn PDF document text
    • https://wernitznigg.at/files/vekumaxit.pdfIn PDF document text
    • http://mentoslaci.hu/admin/kcfinder/upload/files/jukeputakafopimenodezutit.pdfIn PDF document text
    • http://metallpress.info/files/52462993038.pdfIn PDF document text
    • http://biblebaptist.kr/user_data/kcfinder/files/nejonomifeniludaxitu.pdfIn PDF document text
    • https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/dozatopuz.pdfIn PDF document text
    • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16218bf0fe7464---15675745533.pdfIn PDF document text
    • https://epagneuls-bretons.fr/caningest/images/file/gaxilajinuxul.pdfIn PDF document text
    • https://actualite.autopromo.com/fckResources/file/boxubataxasanuvupowik.pdfIn PDF document text
    • http://tchid.net/userfiles/file/37186098280.pdfIn PDF document text
    • https://www.3zslitomysl.cz/admin/editor/kcfinder/upload/files/30352336278.pdfIn PDF document text
    • http://taispacedesign.com/upload/files/tomamifa.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/5b31f63e01a5635927185e73d18d247a/8276541637.pdfIn PDF document text
    • https://rosedreamholidayhomes.com/ckfinder/userfiles/files/86929997933.pdfIn PDF document text
    • http://abcbyspu.com/ckfinder/images_store/files/62810572022.pdfIn PDF document text
    • http://sevoir.hu/uploads/file/vibibagafeloxexirezupaz.pdfIn PDF document text
    • http://borsasetelsis.cat/admin/kcfinder/upload/files/pafutare.pdfIn PDF document text
    • https://webkapper.nl/ckfinder/userfiles/files/tosef.pdfIn PDF document text
    • https://clubledomaine.com/assets/kcfinder/upload/files/nowusewanedenika.pdfIn PDF document text
    • http://syekp.gr/sites/default/files/file/xobexujapulilo.pdfIn PDF document text
    • http://midoriku.zaitakunet.jp/app/webroot/upload_images/files/sosijijofegaxub.pdfIn PDF document text
    • https://centralleiloes.com.br/admincentral/ckeditor/kcfinder/upload/files/vurovufi.pdfIn PDF document text
    • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/b1vv2kgebs6uhl2hgdt3pjuati/kixowibisiwikeb.pdfIn PDF document text
    • https://techson-cctv.com/upload/file/29075578248.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_off000845a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x845A3 10704 bytes
SHA-256: d0fc6fed57639f2b3217d4c82dc2209d54ec6d4accd31061baa3949b1c3b5e86
font_01_sfnt_off00085e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85E2D 19004 bytes
SHA-256: 057dddb39bca9d50631f6fc991f0b1d5c12506df04b0baa4b20b71b98e564993
font_02_sfnt_off00088f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88F6D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9