Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f6e625d01cadb2…

MALICIOUS

PDF

69.8 KB Created: 2020-12-02 12:50:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-19
MD5: a7daa7e38ada8f08c03a1ffc6ec4bfee SHA-1: 683b8d2dbb44360079f04c4259dcd41746e8bb99 SHA-256: 26f6e625d01cadb2a6c1e81157bf9fd8d96d8bd40c2ef718d9238a03c6edc199
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://cdn-cms.f-static.net/uploads/4426088/normal_5f9e1644135be.pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368985/normal_5f9697f42efcf.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/27754597391.pdfIn PDF document text
    • https://vizomitula.weebly.com/uploads/1/3/4/2/134266598/2d1e8591d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487399/normal_5faf530823e26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455914/normal_5faa6487eccc2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452377/normal_5fa009d851261.pdfIn PDF document text
    • https://fofonamid.weebly.com/uploads/1/3/4/8/134869219/8449259.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzufexarevima/zhou_dynasty_feudalism.pdfIn PDF document text
    • https://lazidejapagopi.weebly.com/uploads/1/3/4/8/134891766/pokesagadobuw_raguzexenew.pdfIn PDF document text
    • https://zafapeniledepur.weebly.com/uploads/1/3/4/8/134846756/kajugaziwef_naxoxilubu_kuruturuwojaxog_lojuviposegi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486060/normal_5fbb261156345.pdfIn PDF document text
    • https://tokadasokavetim.weebly.com/uploads/1/3/4/6/134688198/2083248.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390659/normal_5fb97014712e2.pdfIn PDF document text
    • https://traffine.ru/123?utm_term=ancient+of+daysIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000d16d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000d16d.bin)
    • 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 extracted file (font_00_sfnt_off0000d16d.bin)

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d16d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD16D 4980 bytes
SHA-256: 6faffad71a0ff3e4ef37bc5a4b8432720a5bca7e01481cdf3a64453a617eeea6
font_01_sfnt_off0000e283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE283 12040 bytes
SHA-256: c322bbcea9314115c924702861ee2d17c95bf4064e6cccb58e53184281c0e065

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