Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0c290982db9a96f…

MALICIOUS

PDF

66.1 KB Created: 2020-11-20 09:27:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-05
MD5: af18ead68aa3c9f540175d9fef7c5ce8 SHA-1: 0af0f5a1e2b4f2df4049026ab9dcff2825e90036 SHA-256: f0c290982db9a96f11d442f28181d812b3cf672ddc75e868238062c29c254562
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://s3.amazonaws.com/penefelomiju/apex_legends_requisitos_para_android.pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379370/normal_5faab9f0a629b.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/7299384462.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489852/normal_5fa9de30b00a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365552/normal_5f8702849917b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388272/normal_5f9b1f7a401cb.pdfIn PDF document text
    • https://numuzobiw.weebly.com/uploads/1/3/4/5/134589566/baxuxag.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382784/normal_5f8bbd7bf001d.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/asthma_action_plan_victoria.pdfIn PDF document text
    • https://s3.amazonaws.com/texifaxepag/sigewekusigagejelo.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/11557671288.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/18652481009.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/64516149174.pdfIn PDF document text
    • https://traffine.ru/wb?keyword=making%20waves%20audio%20freeIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c562.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c562.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_off0000c562.bin)

Related samples 8

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_off0000c562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC562 5264 bytes
SHA-256: d727072ef0dfca4f20a5f11b0428f7e34fcdd3a5a497d35be768a49072a42047
font_01_sfnt_off0000d784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD784 10536 bytes
SHA-256: 57bafa2fb20997e778cd927eaa354e15addb8a3645a915fc8ad842d9c11d6cbd

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