Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c18c70d8945b65…

MALICIOUS

PDF

43.7 KB Created: 2020-08-16 21:18:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd81767738101494539f0d2ed5fe4e4b SHA-1: 72d8cb6168d93a53dbac646d0fe61a73eff2702d SHA-256: 02c18c70d8945b65ca0bb1056a95672601c71ca78592d7c235ab1d2bd174bb7e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service known for hosting malicious content. The document body, though heavily obfuscated, contains a URL that appears to be a lure for downloading content, which is then redirected through a malicious service. This indicates a phishing or scam attempt designed to lead users to malicious infrastructure.

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.
  • 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://ttraff.com/pify?keyword=rising+of+the+shield+hero+wallpaper+android In PDF document text
    • http://files.eyebelieveeyecan.com/uploads/1/3/1/4/131407493/115b85025bf.pdfIn PDF document text
    • http://files.niavanabelgians.com/uploads/1/3/0/7/130738758/bilewuwunebunir.pdfIn PDF document text
    • http://files.davidhdenton.com/uploads/1/3/1/3/131378993/wozixewawaneb.pdfIn PDF document text
    • http://files.drderickclinic.com/uploads/1/3/1/0/131070798/e63d571860bc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9290/2037/files/16819210625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7442/7806/files/wijazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7079/8489/files/pojisezevezed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1243/1776/files/baxebetin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mevebetivegukubevam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2724/2903/files/9541477201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5754/5365/files/communicating_in_business_english_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4054/2618/files/psychometric_test_sample_papers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/wemuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/18166097407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/webepetarofatikanagip.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
🗂 Part of campaign: davidhdenton.com 5 samples

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_off00006dd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD9 5404 bytes
SHA-256: f52b802bc2899729e609fc7283d91b4096f8ee86fc3c2fe795e8b7444728db4b
font_01_sfnt_off00008042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8042 9916 bytes
SHA-256: ca10ee9bd8d6515cd67a6f5a4c3a60a261efcc2c7f84ac002672d0b97957f843

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