Malicious PDF — malware analysis report

Static analysis result for SHA-256 226966fa74208192…

MALICIOUS

PDF

36.9 KB Created: 2020-08-07 12:52:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e80c0f114cbb1f56ed32f8f649bd136 SHA-1: ff83a8f390a3483c783ce5a426c25f0d6e312acf SHA-256: 226966fa74208192fb61dadc66144792c82b52dd94465a8fb11afb846ebe5342
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify, likely for SEO manipulation. The ML classifier strongly flagged this PDF as malicious.

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=benteng+hidupku+chord+pdf In PDF document text
    • http://dawir.alexandrasearle.com/uploads/1/3/0/7/130774993/1bac6a6f4.pdfIn PDF document text
    • http://files.arabesquelondon.com/uploads/1/3/0/7/130775635/tuxefodozewizukatema.pdfIn PDF document text
    • http://files.wamindaworkingstockdogs.net/uploads/1/3/1/4/131414134/8073049.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7929/3338/files/48503073651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3024/8600/files/19474479655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8757/4678/files/59525696582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9395/files/sogivixanodujuxepisana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/joragoguve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7747/4206/files/50887260499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44240048578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7837/6853/files/4276559998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/povusulalolufolimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1503/5291/files/68730827503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5865/8454/files/vovupitaxexolupabajur.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004528.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4528 4992 bytes
SHA-256: 72775c7d39a5497f3059f6be94f3ff3774f15c775f5432dea12ae0501850e42e
font_01_sfnt_off0000561c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x561C 10208 bytes
SHA-256: edb9a1f48f96080b8ce7916f071a3f7e42f7825476b21cfa17d6d14a4a15971d
font_02_sfnt_off000078e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E8 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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