Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9920cb95c91ecec…

MALICIOUS

PDF

247.1 KB Created: 2022-02-13 10:27:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 049b7497e4acaa8eb0927c6afaa9baac SHA-1: cfdb9bc09d7dde7b71751fdeba0f82ffbb47bfda SHA-256: f9920cb95c91ecec27c0ce2c246e80513adaf10c0b86074337f20c2ed922ca21
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6914

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://yubit.co.za/XSRYdR1H?utm_term=uc+browser+free++apk+file PDF link annotation
    • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/6488a356f3c25aad911c12b5357297c5/mogaxidibusakakili.pdfIn PDF document text
    • https://burgas-remonti.com/userfiles/file/zixigepitibor.pdfIn PDF document text
    • https://sportsslife.net/upload/ckfinder/files/19687458182.pdfIn PDF document text
    • https://altsovmun.ru/userfiles/file/tojipabavawesajobuwa.pdfIn PDF document text
    • https://plastr.cz/files/files/kulenerowi.pdfIn PDF document text
    • http://mbnlpc.com/assets/admin/ckeditor/kcfinder/upload/files/31154592468.pdfIn PDF document text
    • https://muziekweekend.pesse.com/bestanden/files/kijunabomofizemi.pdfIn PDF document text
    • http://elitakhealing.com/ckfinder/userfiles/files/95783032017.pdfIn PDF document text
    • https://commonlawhouse.in/userfiles/file/nevuxadubewijatowig.pdfIn PDF document text
    • https://vivekanandbawwa.com/userfiles/file/71854369587.pdfIn PDF document text
    • https://renetravel.ro/images/files/96508097716.pdfIn PDF document text
    • http://tznjl.com/userfiles/files/dogavenububulozoku.pdfIn PDF document text
    • http://pitchdecor-construction.com/user_img/files/98571975568.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/70f21f2fbe18023664fdc613905179bf/62815655992.pdfIn PDF document text
    • https://shibbirs.com/media/files/9549700535.pdfIn PDF document text
    • http://drkoopman.nl/cmsimages/file/96154692863.pdfIn PDF document text
    • http://happinessgown.com/upload/users/files/zipaso.pdfIn PDF document text
    • https://christianbelieversmatrimony.com/web/christiansbelieversmatrimony/photos/ckeditor/files/88392635581.pdfIn PDF document text
    • http://unixsensor.com/uploads/files/202108220354081377.pdfIn PDF document text
    • http://ettis.net/kcfinder/upload/files/buseva.pdfIn PDF document text
    • https://5ky13lu3-1251.com/contents/files/48989100768.pdfIn PDF document text
    • http://misosmile.com/upload/editor/files/dumisafefesipak.pdfIn PDF document text
    • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/1f643b14c955d5b50caea247e7422d15/96493378877.pdfIn PDF document text
    • http://mmckno2010.zkosuchdol.info/files/91725326075.pdfIn PDF document text
    • https://vanphongphampmc.com/upload/files/zaxemutadosukur.pdfIn PDF document text
    • http://paraglider24.de/pics/fotos/1/file/filigogo.pdfIn PDF document text
    • http://porpora.group/imagenes/imagenes_contenidos///lefinesetexexunitixax.pdfIn PDF document text
    • http://thelewisfamilyreunion.com/clients/c/ce/ce72a6ed4f7059d305e3bbfb121cee90/File/20283182610.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/fgd6ucv38qbfh4r5s4kb3t5af6/13669923655.pdfIn PDF document text
    • http://getem.eu/files/file/9950913665.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_off000365d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x365D3 10596 bytes
SHA-256: b80f0c8ab5f2ccc160494a404b98469e546207474bd1e2f9dd6da8a5281af99d
font_01_sfnt_off00037dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37DFB 20516 bytes
SHA-256: 7b1a6f7b87734bff28000c7ad55248b1985dfc44014722b2585a0e6f68eefd26
font_02_sfnt_off0003b445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B445 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9