Malicious PDF — malware analysis report

Static analysis result for SHA-256 5da5027024ea29e1…

MALICIOUS

PDF

50.0 KB Created: 2020-08-17 06:50:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a7d7cc23c7c84870d908557ddcdf2e03 SHA-1: 59541104ebd7d3775c768d41306735aab4d568c2 SHA-256: 5da5027024ea29e1f168690057e8fcbfb96c894e97d2c252605ea3f657b9ed39
194 Risk Score

Malware Insights

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

This PDF file contains numerous links to external PDFs, many of which are hosted on Shopify. The primary redirector URL, https://ttraff.com/pify?keyword=katarina+mid+guide+s9, is flagged as malicious and is likely used for phishing or malware distribution. The document body, though heavily obfuscated, contains references to the redirector and the appearance of a guide, suggesting a lure to entice users to click the malicious link. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=katarina+mid+guide+s9 In PDF document text
    • http://files.stephgardner.com/uploads/1/3/0/7/130739831/masav-fejibel.pdfIn PDF document text
    • http://files.cospempowered.org/uploads/1/3/1/3/131384101/4968865.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/1/0431/0886/0065/files/xejuxigovifavuburemomab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1402/8450/files/76875708408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6104/1559/files/brain_teasers_for_middle_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4197/2646/files/60045288787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9639/9265/files/all_bollywood_songs_lyrics_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3161/5909/files/tokiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0273/2448/files/94596718828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/curso_aprendizajes_clave_preescolar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1977/8720/files/entrepreneurship_class_11_ncert_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6732/6110/files/48744370909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/risodezejirewivizepiravod.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007835.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7835 5236 bytes
SHA-256: c77c6d15f5a1e5e2924d08b9e21a002f9be934a3c41ec5748a7384ed64f0ad8f
font_01_sfnt_off000089e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E3 16092 bytes
SHA-256: a4d165b4a0c54edcfe3f7abca8e55740404f78b564c9c89cdf902ef1bcff2316

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