Malicious PDF — malware analysis report

Static analysis result for SHA-256 6302a8f8ed516e4c…

MALICIOUS

PDF

40.4 KB Created: 2020-08-25 02:17:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3f6b646f63f8e51550561bd09277f4d SHA-1: ae33d070bc98c68defea8ed5cf0d9fc82bdab8d5 SHA-256: 6302a8f8ed516e4c12a537cf1ad5f0507e615a440587c983f855c491f39ca8de
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links to external resources, masquerading as a "complementary filter pdf" to lure users into clicking. The primary redirector URL, https://ttraff.ru/pify?keyword=complementary+filter+pdf, is flagged as malicious. The document body itself is heavily obfuscated, but the presence of embedded URLs and the heuristic firings strongly indicate a phishing or content-luring scheme 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.ru/pify?keyword=complementary+filter+pdf In PDF document text
    • http://files.artlifedelhi.com/uploads/1/3/1/3/131380295/mitiko.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/1/0437/2961/7057/files/2623919307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/dozozixene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4306/9858/files/jojonanolilagaribal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0850/6531/files/simple_english_translation_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8144/9118/files/54013887178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4661/6733/files/wezuxale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/4337/3480/files/sizefadijer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5382/6726/files/83376218220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0298/5626/files/architectural_drawing_course.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3644/6613/files/hannah_s_bretzel_nutrition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2124/6359/files/xuwibigetugavek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1540/3682/files/bobcat_863_manual.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

Related samples 1

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_off00005f8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8E 5016 bytes
SHA-256: b4b4a89d7871bc07b06727a62d310a83af5106f01f8eb375a24a1e29cd297d70
font_01_sfnt_off00007089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7089 10772 bytes
SHA-256: 9a1448a5712b84c12ea392fd3fe1b55104569ad59b319279386d7564a2834380

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