Malicious PDF — malware analysis report

Static analysis result for SHA-256 441f77cdc332a624…

MALICIOUS

PDF

321.5 KB Created: 2022-02-02 19:20:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 5a0e63b5d2160db2de7b5ca4ef030b4c SHA-1: 9c73bf5f48b7ede2b21ccf0cbf3f844799e5f0f2 SHA-256: 441f77cdc332a6246af5845dd19a66c8876cd6ae7c60529878bfece8c5fd278b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8480

Heuristics 5

  • 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.
  • 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=outdoor+billboard+mockup+free PDF link annotation
    • http://abwalabamaave.com/uploads/files/mimetapepuwikafaweduw.pdfIn PDF document text
    • http://eko-uklid.com/files/file/97058637844.pdfIn PDF document text
    • http://chinalabware.net/d/files/megofezonudezip.pdfIn PDF document text
    • https://stephankeppel.com/userfiles/file/kupejeboronoguxo.pdfIn PDF document text
    • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610b8db5f2864---mobikotubefemalob.pdfIn PDF document text
    • http://a2itsolutions.com/chop/multimedia/userfiles/file/nadugedu.pdfIn PDF document text
    • http://movesearchesuk.com/userfiles/file/11740816373.pdfIn PDF document text
    • http://obraz-tlt.ru/userfiles/file/25829958541.pdfIn PDF document text
    • http://diskacme.dk/images/upload/file/tumomolunuxuwul.pdfIn PDF document text
    • https://dbmotorbrokers.com/userfiles/file/milorulit.pdfIn PDF document text
    • https://myagenda.myagenda.cz/pictures/editor/files/satotumazigisoladamaxi.pdfIn PDF document text
    • http://agecarekorea.com/ckupload/files/71287776147.pdfIn PDF document text
    • https://debo-fit.be/userfiles/file///gufuxipizil.pdfIn PDF document text
    • http://7m-shop.godyouoh.com/userfiles/file/71754988283.pdfIn PDF document text
    • http://klavierunterricht-bergedorf.de/files/files/30632126479.pdfIn PDF document text
    • https://immobilgold.com/file/58937413966.pdfIn PDF document text
    • http://soeurs-scjboran.fr/soeurs/upload/files/6948898487.pdfIn PDF document text
    • http://lavalnerina.it/userfiles/file/25620145903.pdfIn PDF document text
    • http://ctkupavna.ru/upload/file/42451709474.pdfIn PDF document text
    • https://clinicamanila.com/ckfinder/userfiles/files/80561080985.pdfIn PDF document text
    • https://faresaldabbous.com/uploads/file/8112767004.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 extracted file (font_00_sfnt_off00049ae7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00049ae7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00049ae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49AE7 16980 bytes
SHA-256: 5f964519c24144e432c0071dcd134ab3fdf7482a6bca6c497f61ff711c22be05
font_01_sfnt_off0004c754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C754 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004de74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DE74 10868 bytes
SHA-256: 0e141a4802bed8eeb717b55b562542583dc747798a135d92a06a15698c900dce