Malicious PDF — malware analysis report

Static analysis result for SHA-256 793be1db451cc0d1…

MALICIOUS

PDF

67.4 KB Created: 2020-11-26 15:01:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: a81b4d805d05064ba329d80eb9ab7d48 SHA-1: 89abf1ab0604b1c5ed73a935afaa21e60cd9e03d SHA-256: 793be1db451cc0d178363eb6b222ad41c62007f6687864c21460d22ead847721
136 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
  • 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://trafffe.ru/123?utm_term=creme+brulee+juul+pods+discontinued PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403266/normal_5fbb6d0a71bb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374685/normal_5fa222c0ab156.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478716/normal_5fad96bd6cd72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489595/normal_5fb2ed9fa9bd5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369659/normal_5fbf355f5166c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370780/normal_5f95d17271bcb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b537009f-9b58-4b58-a81c-93b49918c09d/45960824312.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/printable_calendar_2018_october.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5bd4012-e640-4447-9606-6f6145c3a9a4/the_red_book_mao.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/58114380989.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/71461439835.pdfIn PDF document text
    • https://s3.amazonaws.com/wikurixobelu/99137295926.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/a_horse_and_two_goats_summary.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_off0000ca8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA8E 5132 bytes
SHA-256: 1ce9c8c2ad6324c49676323b604c65aee677e2846d21c2d1b6acaaf3aacc123b
font_01_sfnt_off0000dbe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE2 11168 bytes
SHA-256: fa8dda780254b88f7d57c5101d3676357604d4d9d38dc998af8e9612ad7da7b8