Malicious PDF — malware analysis report

Static analysis result for SHA-256 328978d947da75a9…

MALICIOUS

PDF

47.1 KB Created: 2020-08-01 21:10:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 571a507eb80d41569796b27ae3a4d337 SHA-1: f4a9f7124b6c61e3ef7eddcd4b279f449d5a742b SHA-256: 328978d947da75a9580bf0685687707bae02a43ffd7a3c3aa3c4beb15875c6c4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a lure related to Samsung smart TVs and DIRECTV guides, embedded within its document body. Heuristic analysis identified it as a malicious redirector link pointing to 'ttraff.cc', which is a known malicious infrastructure. The file also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to a phishing page or malware download.

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.cc/pify?keyword=samsung+smart+tv+directv+guide In PDF document text
    • http://files.admcclub.com/uploads/1/3/2/7/132741429/molixukuledepuwun.pdfIn PDF document text
    • http://files.jbnomac.com/uploads/1/3/0/9/130969820/noves.pdfIn PDF document text
    • http://files.stoewer-cars.com/uploads/1/3/1/4/131438563/02e19ac.pdfIn PDF document text
    • http://files.lbnaz.org/uploads/1/3/1/4/131453577/kagozifutofig-jimetejapaxazo-jumurefunirufis-kodutizidek.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/1/0434/5911/7206/files/17422654130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6338597663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8511/0177/files/77452361935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3910/4917/files/bubikopopomufufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1013/0073/files/bowizutuvuwaragise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70934180934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4275/7029/files/xobumaruxena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1970/6269/files/xodexalogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/56317563286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/mojisujigasofulasizakoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3649/0398/files/9385644904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4847/6570/files/54641528402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3943/9510/files/36638985102.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 7

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_off00007a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A16 5392 bytes
SHA-256: e2057052d117054cc576ab8bd3b66982235dfcea8436ed28dd7dbe49fcc9fc20
font_01_sfnt_off00008c58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C58 10320 bytes
SHA-256: f2a97c54f245c11a3cfc52c2c4bdeea981ae9fff684cf8f4084db7fb6325f6e8

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