Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f5e0a9404ae61c…

MALICIOUS

PDF

67.3 KB Created: 2020-11-10 04:28:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-19
MD5: 88becece9e82804331ae7344c551e925 SHA-1: 28257cb6f2faa91156fd8860976eb182a9cd9be6 SHA-256: 26f5e0a9404ae61cf146a46b687a1926fb9e088e97802becc2cd631beb299058
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://fevokokedu.weebly.com/uploads/1/3/4/5/134500062/a6ecfbeff441.pdf In PDF document text
    • https://lotetirupaxep.weebly.com/uploads/1/3/4/0/134013035/muveguse-raselabadoje-roxumu-nurowalulabojax.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/7285122151.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/40000395638.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/21360038589.pdfIn PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/1c72f370f07fd5.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/wallis_formula_integral_calculus_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/20194769033.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/anchoring_script_for_college_annual_day_function_in_english.pdfIn PDF document text
    • https://pipalilivo.weebly.com/uploads/1/3/4/3/134310902/5394f1de5c.pdfIn PDF document text
    • https://traffine.ru/wb?keyword=tipos%20de%20raicesIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000cc6a.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000cc6a.bin)
    • https://uploads.strikinglycdn.com/files/6e0bb0bc-3922-4463-9dac-f86fe79b9834/tibeganizaxopivixinis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8c42792-2b57-41db-9653-fb13354cf5de/tifoximepazire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9018149f-fa4c-46c3-bba5-c6aba1461a29/lerugixakubuwaxugojiziwel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fb18283-9c63-459a-8a43-07b3ecb97c99/aidin_salih_gerC3A7ek_tC4B1p_indir.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 extracted file (font_00_sfnt_off0000cc6a.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_off0000cc6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC6A 4984 bytes
SHA-256: c07fca6b36231f2f6cee2a1ed4465e06bc7e6525d785faa33519ac8cd56b1569
font_01_sfnt_off0000dd66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD66 10432 bytes
SHA-256: efb678eef809293d4e224d47eaa9dc742294b5f888936e81ba4196e521657d24

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