Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d280a6b99b6daeb…

MALICIOUS

PDF

47.3 KB Created: 2020-08-09 05:35:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 893cead7a3ea28d26abbe655fff007d5 SHA-1: 5800476e8bec6fb587137a4e8c9ea84788bdd687 SHA-256: 4d280a6b99b6daeb12e004f990959da883530417e24ad8a2d89d4a4c1bdb1886
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=masterworks+zelda+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, and the document body is heavily obfuscated, but the redirector URL is the primary indicator of malicious intent.

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=masterworks+zelda+pdf In PDF document text
    • http://files.scphimu.com/uploads/1/3/1/8/131856827/8bee37e94552a.pdfIn PDF document text
    • http://files.myprotectionguide.com/uploads/1/3/2/3/132302940/552876.pdfIn PDF document text
    • http://files.bradley-hamilton.com/uploads/1/3/2/6/132681045/kofogemarexuxu.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/1/0433/3237/0584/files/fundamentals_of_pl_sql.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2656/2722/files/60799052989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5965/7374/files/patelarovijatunabab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/44191716165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3105/0915/files/college_algebra_9th_edition_larson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4507/6647/files/79891825099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8071/2346/files/vrd_assainissement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1251/1128/files/bapisawugurumewuguritagoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8377/5643/files/28029490053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/nezibafitadikokigerune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/vuwifokefafanole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3325/6345/files/nawofalekawefi.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6A 7960 bytes
SHA-256: d51f66efd2fe1e87bf0907b2c50e590931a23389f44175e18a2b6c0eabd1bf14
font_01_sfnt_off000078e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E4 5248 bytes
SHA-256: f199116e1089d2de26b090d72ade611d23683a999fda25161d97b88979c7ee9d
font_02_sfnt_off00008af3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF3 10856 bytes
SHA-256: f228564796ef72ed4debe4d31351c75fbd84247c701a6f6cd385c56b9eb42b6e

Open this report in the interactive analyzer, or submit your own file for analysis.