Malicious PDF — malware analysis report

Static analysis result for SHA-256 753dd2319d074c35…

MALICIOUS

PDF

38.5 KB Created: 2020-08-09 05:53:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59e8e89940dfb851847f8d7a3c785a6e SHA-1: 9a8df408b6344f27d3eada39aa228aeb793be36a SHA-256: 753dd2319d074c35a77e2da3bd55c2d1189f68ad9cf808e87e6859409c6a14fa
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing lure. The primary redirector URL is https://ttraff.ru/pify?keyword=gypsy+jazz+arpeggio+book+pdf, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other benign-looking Shopify links, likely to improve SEO for the malicious redirector. The ML classifier strongly indicates maliciousness.

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=gypsy+jazz+arpeggio+book+pdf In PDF document text
    • http://files.inspiredcreationsbysky.com/uploads/1/3/0/7/130739043/8262951.pdfIn PDF document text
    • http://saloletem.movimentomarianobetania.org/uploads/1/3/0/7/130739275/d597a34aa5b.pdfIn PDF document text
    • http://waxot.countrylucklife.com/uploads/1/3/2/3/132303382/momobisej-tomorete-fovad-mufimile.pdfIn PDF document text
    • http://files.islandcitypublishing.com/uploads/1/3/0/7/130776327/monidel.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/1/0427/8163/8812/files/31150696497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1139/1135/files/75084113861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3929/3589/files/86424884958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4780083199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/82158134389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1561/9239/files/lomeverusifuxufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/92227925825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gumuwajufutoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4448/6811/files/guravekizatuzumonuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5719/1843/files/metaphysical_conceit_in_the_canonization.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 3

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_off000057ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57ED 5640 bytes
SHA-256: 3c254f56ce907fa93b9870a1fd4295974274f48c504614d6db026330a76604fc
font_01_sfnt_off00006b4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B4C 9900 bytes
SHA-256: 9e641a40e4748c349fa60af25bcd650138b5a40b0a9ffed9255a24a72e765a98

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