Malicious PDF — malware analysis report

Static analysis result for SHA-256 78261040d6c1edbb…

MALICIOUS

PDF

329.3 KB Created: 2022-02-27 14:53:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 3a3a37455a6d9b37d358823307e69a7e SHA-1: c86ceb7ffb797b851a3ac25768d9a64e410032c2 SHA-256: 78261040d6c1edbbc26fe332b153833b8011b3d97e36c57d5fe53c7731104a2c
114 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.2193

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://lovig.co.za/XSRYdR1H?utm_term=aqa+a+level+physics+examiners+report+2018 PDF link annotation
    • https://nasco-ye.com/uploads/file/paridetowagajoni.pdfIn PDF document text
    • http://xn--80aafbjcazdrhzgiddbbcsg4l.xn--p1ai/pict/file/kofafes.pdfIn PDF document text
    • https://malabarmail.com/ckfinder/userfiles/files/gevafosibifabibol.pdfIn PDF document text
    • http://eigo-manabo.com/app/webroot/js/kcfinder/upload/files/84553829491.pdfIn PDF document text
    • http://aftckwt.com/uploads/file/xunakafeve.pdfIn PDF document text
    • http://roosprommenschenckelfoundation.nl/userfiles/file/2585841458.pdfIn PDF document text
    • http://bburago.info/admin/fckeditor/userfiles/file/nivitepagakumowasi.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_off0004b725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B725 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004ce40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CE40 17948 bytes
SHA-256: bfe6499c7d16b3af68fb1c8deb561b14d6273c066709ec4a084c438c4977db4c
font_02_sfnt_off0004fc19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FC19 11552 bytes
SHA-256: 5248b9458e15c1211cdf68aaf8d50a7c58027062324415a1829db02da177082d