Malicious PDF — malware analysis report

Static analysis result for SHA-256 79316682d43c02b3…

MALICIOUS

PDF

294.1 KB Created: 2022-01-07 16:22:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 3a79418fc4c6dfdc060ed5b1eaba477f SHA-1: 99e4fa7a4482109208626f5f5cc89ed33d8193aa SHA-256: 79316682d43c02b3a8722b7b9c9ac0f7a55b9b84033c01daa16c809963d53b40
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7987

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://vectronic.tech/admin/ckeditor/kcfinder/upload/files/97769321408.pdf In PDF document text
    • https://e-fasteners.eu/media/file/dukadixuvalo.pdfIn PDF document text
    • https://newtop-eg.com/userfiles/file/tutiron.pdfIn PDF document text
    • http://progetec.org/userfiles/files/jamutipup.pdfIn PDF document text
    • https://xylemleads.com/userfiles/file/fasum.pdfIn PDF document text
    • https://fuoriscena.eu/file/simusutunenagot.pdfIn PDF document text
    • http://advocaatindex.nl/images/uploads/wesovu.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/2d2f705f9d865d7724ca192f15daf5b1/24189712509.pdfIn PDF document text
    • http://sinostandards.net/upload/files/89772769239.pdfIn PDF document text
    • https://textosl.com/upload/editor/file/wesasetagubigofipesuji.pdfIn PDF document text
    • https://propactionvehiclesuk.tv/userfiles/files/39580087510.pdfIn PDF document text
    • http://cathyknightwaite.com/ckfinder/userfiles/files/47889996272.pdfIn PDF document text
    • http://hublihorse.com/uploads/userfiles/files/xorebawov.pdfIn PDF document text
    • http://camelliafb.com/uploads/files/202109092054368745.pdfIn PDF document text
    • http://daimarconstrucciones.com/images/admin/file/14662403915.pdfIn PDF document text
    • http://myxroad.com/upload/userfiles/file///zafigosilazikidewujeraje.pdfIn PDF document text
    • https://peiitw.com/Upload/ckeditor/files/tejijovejo.pdfIn PDF document text
    • http://smolensk-bakaleya.ru/userfiles/file/pakiwekajonigonukebojane.pdfIn PDF document text
    • http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/bilusajaputuwononi.pdfIn PDF document text
    • http://www.kotolantopeni.cz/files/10862443382.pdfIn PDF document text
    • http://seattlebestteriyaki.com/uploads/files/14283903823.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/RC0zOYPQW8A/uplcv?utm_term=letter+of+authority+template+pdfPDF 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 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_off00042d2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42D2B 17528 bytes
SHA-256: c080646fe6735dc3068cf677aef1d9ac82d30e5e5cdae78e9deca929db4f1d0c
font_01_sfnt_off00045a70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45A70 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00047114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47114 10660 bytes
SHA-256: eb6733e2c6913f038c5ef248c1ca7c2295b22bbeec90a818d8dea72bbec26e86

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