Malicious PDF — malware analysis report

Static analysis result for SHA-256 664fb0af216551ee…

MALICIOUS

PDF

43.4 KB Created: 2020-08-04 15:20:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c4240e45145d093763c60c595339900 SHA-1: 689a7abacbdd800db5f97ae910aae1a26304a4e1 SHA-256: 664fb0af216551ee6921dd6e67373691440f0d35e9172df083de055ee19236a5
194 Risk Score

Malware Insights

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

This PDF document contains numerous links to external PDFs, many of which are hosted on Shopify and appear to be part of an SEO link farm. The primary link, however, redirects through `ttraff.com`, a known malicious redirector, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the same redirect URL, reinforcing the malicious intent. No scripts were extracted, but the PDF structure and embedded links are indicative of a phishing lure.

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=how+to+be+even+better+manager+pdf In PDF document text
    • http://files.magisktgott.org/uploads/1/3/0/7/130776573/7e2887781a6b6f.pdfIn PDF document text
    • http://files.adoreweddingdesign.com/uploads/1/3/0/7/130776205/c465823d8.pdfIn PDF document text
    • http://files.swofcp.com/uploads/1/3/1/1/131164462/zawujed.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/1/0431/4831/2738/files/77199199256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/29459509711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/wobak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5198/0712/files/10819915434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90685258811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6867/files/the_hills_theme_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5481/7690/files/lebezadukunopepimife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1239/9010/files/wuvatib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/16280938201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5113/8715/files/mudagukobokuvajarap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3662/2498/files/ihss_direct_deposit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4745/0789/files/16564899476.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 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_off00006c2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2C 5404 bytes
SHA-256: f37135aaf138a3fdf5f405927b2bbf317cd8483f984683141da31c747f4178b6
font_01_sfnt_off00007e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8B 10120 bytes
SHA-256: 5583018caa09f209f62347146e4a2b0756090a72e72a026b534fe12a46f76973

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