Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3278fecc21b9c8…

MALICIOUS

PDF

50.4 KB Created: 2020-10-31 02:51:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 67b6266b5122cd6a6e372752ffb28bde SHA-1: ecec35db014047c99fac6922c6d1205bc14f30a3 SHA-256: 0d3278fecc21b9c86c01cf540d09023556aa7f2e52dc8a6e2b014825f40868fe
142 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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?keyword=haralson+county+tax+assessor In PDF document text
    • https://cdn-cms.f-static.net/uploads/4382972/normal_5f923fe9a96f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366043/normal_5f8716979df90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365653/normal_5f8aa8cded536.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368740/normal_5f88a01373586.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gopuze/93995493809.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/498a8699-7168-4e5b-8367-c0502f84d522/dajipo.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/define_extended_phenotype.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/277f1b4b-0534-4b59-a53c-a54dabe73d31/rikot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa2c9675-5c75-4718-bcf0-9192bc65d167/70028213049.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a14be69a-e91c-4be4-aec4-2c40a7122648/9052615429.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/74965551744.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8e85a85-652e-473b-a9a3-c2ef4bda6b0d/nibiwoxekajikafiredove.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d56ebc37-3032-4fc8-a2e2-3255c43c1864/bedoporuwexujete.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000078ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78AD 4756 bytes
SHA-256: f7782fb8b56c75e99fda704765cf864f8108b6eab5d21083799a1b36cb60f895
font_01_sfnt_off000088e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88E4 11216 bytes
SHA-256: eaebac828fa8eb0f04c50f77829d6da0c56d0646a27fde76fa5b7b4adec7ad74
font_02_sfnt_off0000ae86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE86 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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