Malicious PDF — malware analysis report

Static analysis result for SHA-256 02cdf9e55d2faf5f…

MALICIOUS

PDF

42.1 KB Created: 2020-08-24 13:32:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea77fbb568b02e1c5178870a4e48ec62 SHA-1: 15ba621a690d0da05689ecd7bbc375acf6709202 SHA-256: 02cdf9e55d2faf5f2c09bad3e7625bbad1791f0c82fcb517deb55483d6613f22
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a redirector infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=bravissima+script+ttf+free, which is flagged as malicious. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a link farm or SEO manipulation tactic to distribute malicious content. 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=bravissima+script+ttf+free In PDF document text
    • http://files.lovetywyn.com/uploads/1/3/0/7/130775912/1421911.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/1/0434/2739/7797/files/tuvusabilolefaridowazivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/ielts_speaking_test_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/66745684592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6982/files/58432010681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/rawijipobidoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3890/7288/files/womuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/zuguzupane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6509/8908/files/70443834640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1800/2340/files/free_lisp_for_autocad_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/65915993222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/46390742015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0391/2098/files/pegetizofopakiros.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off000050b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50B3 5240 bytes
SHA-256: 4518eb057cd88bfc00fb54f79a9a30d0612b778266fbc00156d159743171cc9d
font_01_sfnt_off0000626f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626F 10968 bytes
SHA-256: 699d1f4e4ceff95cace6fe1e1eb669f33e0c24ae547be4b79343a76eef33d0fe
font_02_sfnt_off00008702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8702 16084 bytes
SHA-256: e5245523bd71a78e06ca3300da63f55ad096e28dd8c1a5e83e138be64f7d0aee

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