Malicious PDF — malware analysis report

Static analysis result for SHA-256 6241f26552c2bd72…

MALICIOUS

PDF

377.5 KB Created: 2022-02-26 12:08:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: 05c34b8fa1a3061c5b8d62a9aaf0b87e SHA-1: cdb2b7e2ae9dd6acb02ca7a4cf69524f550fcf3d SHA-256: 6241f26552c2bd7287ff55f8bfdf48954eca543de4da06782b5f3cf3e2999ba8
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7954

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://lazav.co.za/XSRYdR1H?utm_term=coc+certificate+of+conformity+definition PDF link annotation
    • http://khaskhaan.mn/uploads/userfiles/files/42648118377.pdfIn PDF document text
    • http://av72-reklama.ru/userfiles/file/163526960692a688f8c04b3cd6cae0.pdfIn PDF document text
    • https://www.hkfew.org.hk/ckfinder/userfiles/files/pogebufesajevimazemo.pdfIn PDF document text
    • http://maszyny.pl/userfiles/file/14616315499.pdfIn PDF document text
    • http://filtrydokoparek.pl/img/all/78740089846.pdfIn PDF document text
    • http://industrialdevices.in/uploads/35805088159.pdfIn PDF document text
    • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161c28b849812d---lukarefapezadarabitesuf.pdfIn PDF document text
    • https://confidence-ist.mktechsol.com/ckfinder/userfiles/files/vudapizixubusa.pdfIn PDF document text
    • http://airserbia2009.vs.rs/multimedia/file/99618142732.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/f0f3cb841c0d03d300727c21248fce16/nidonejuvofikupuxikimit.pdfIn PDF document text
    • https://quangtriasianwindow.com/uploads/image/files/57514224837.pdfIn PDF document text
    • http://obuchenie.bititechnika.com/img/file/rizizofafe.pdfIn PDF document text
    • https://tutorlookup.com/ckeditor/ckfinder/userfiles/files/99811007602.pdfIn PDF document text
    • http://ziconiavip.com/uploadfck/file/tovixo.pdfIn PDF document text
    • https://otartufo.com/ckfinder/tartufofiles/files/vafujijatolik.pdfIn PDF document text
    • http://xn--12cbg9dihj7egda2g6a7dceb1d2cp4nvgf4f.com/datas/files/18082596754.pdfIn PDF document text
    • http://rrbrentacars.com/files/others/4718156337.pdfIn PDF document text
    • http://lnianemarzenie.pl/userfiles/file/4675004982.pdfIn PDF document text
    • https://hongmao.tw/uploads/files/202109181304306624.pdfIn PDF document text
    • http://marinapogon.pl/upload/file/xorimeliweginunaroz.pdfIn PDF document text
    • http://gsmontaggi.it/userfiles/files/76925479953.pdfIn PDF document text
    • https://rtvpuls.com/ckfinder/userfiles/files/76406959012.pdfIn PDF document text
    • http://salwex.hu/file/kobanidekevareroja.pdfIn PDF document text
    • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1616e47923c961---84725236731.pdfIn PDF document text
    • http://studiotecnicomartani.eu/userfiles/files/rilukajobibubufar.pdfIn PDF document text
    • http://www.waheedullahauto.ae/admin/kcfinder/upload/files/zafisa.pdfIn PDF document text
    • http://samtle.net/ckupload/files/42031293499.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/bamarixon.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_off000573a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x573A7 10568 bytes
SHA-256: b9794b855a8a31374e3a4b9ff38ae45e12f61f99255168ef2efd85099d6ee2b9
font_01_sfnt_off00058bcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58BCB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005a2e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2E6 19724 bytes
SHA-256: 74ca7a67d131431254ec4647c3781d39be6f7675e6330b90e7e68bec166ce429