Malicious PDF — malware analysis report

Static analysis result for SHA-256 79307b6a25baba46…

MALICIOUS

PDF

67.8 KB Created: 2020-12-02 10:45:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 15d76ab38abfb289650f14ae6933a85e SHA-1: a4febc9b3ab540e6284e83971fa888b14eccbbff SHA-256: 79307b6a25baba46d63c446b8dc2f46c5196237f3db8240bd16883b925f419a7
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/strik?utm_term=waddell+language+academy+school+supply+list In PDF document text
    • https://cdn-cms.f-static.net/uploads/4418570/normal_5fb3cbf155b1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468255/normal_5fbf5013a45dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388833/normal_5fc17530eaad0.pdfIn PDF document text
    • https://niwonuruvi.weebly.com/uploads/1/3/4/7/134767359/8164550.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414514/normal_5f9cced2a12b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375887/normal_5fb89b9ba0131.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451049/normal_5fba0c0b5ab88.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/613a711ec7ef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/watajive/black_and_decker_sanding_sheets_screwfix.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/tuxovavix.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5cb0c12facd59cece9961/t/5fc62a56173fb5383b75bbf6/1606822486360/sad_wallpaper_hd_emoji.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC944 5508 bytes
SHA-256: 3746f0496719c9c130a0714ad216129c66415d07927d31911752c77c567a3055
font_01_sfnt_off0000dbf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF1 11504 bytes
SHA-256: eb7f12dd328f9698eb9681752b0c043c0835c6809ca9a8cee111d1256df47a4c