Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e452a6c75c3483e…

MALICIOUS

PDF

49.7 KB Created: 2020-09-14 00:38:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ffe081c69e0a5939cee7e936a6a0edd SHA-1: 30173deb377aa62610ec21e2ebaf8e4b8a2b1579 SHA-256: 6e452a6c75c3483ec87d4d6331bf60944baaefcef7f68f0876a997e6ccaa609f
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the primary malicious URL and references to other PDF files hosted on various domains. The ML classifier also strongly indicated 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.me/wix?keyword=world+of+warships+phoenix+guide In PDF document text
    • http://files.westcoastminitruckers.com/uploads/1/3/0/7/130739750/zowezabokopomad.pdfIn PDF document text
    • http://tunudew.iscebs-richmond.org/uploads/1/3/1/4/131437508/kumubofidusu.pdfIn PDF document text
    • http://files.finneganswakeupwithcandle.com/uploads/1/3/1/8/131871467/newojelovu.pdfIn PDF document text
    • http://files.neciasnotables.com/uploads/1/3/2/6/132682768/4749671.pdfIn PDF document text
    • http://files.tamsweets.com/uploads/1/3/1/0/131070113/649a4164b1651.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/1/0428/0313/4627/files/34400038418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8590/5576/files/teoria_del_delito_causalista_finalista_y_funcionalista.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0939/1261/files/mizupasanisuzasadagapugal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/61871666411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4158/5314/files/39942335385.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7dfe85_64b4a08c319d4cb0965c6ef296370d70.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d54300_8f64d05b11e14ac9bf58b45dd52f82f3.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_off00006ef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF0 5476 bytes
SHA-256: a146a4ac271d97e2e082c625be093d2738e85786a4202e196da902b48ce1229a
font_01_sfnt_off000081ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81AC 10280 bytes
SHA-256: 7c75362a2499b0152d66a31d7465f23f0e45aa01aba65c6055a306a8b0d917db
font_02_sfnt_off0000a4d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4D3 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848

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