Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb07a92c7e9b485b…

MALICIOUS

PDF

41.4 KB Created: 2020-08-13 11:02:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b62ebc0de91f4c183c296cbb9737701f SHA-1: 78f0de734e028f0db27a5c5b4a7d8143dc86b730 SHA-256: bb07a92c7e9b485b03039d7f179074d55bd6ddbceb7866de0abdb763c7ab6010
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wb?keyword=presentation%20about%20education%20pdf', suggesting a lure to a malicious site disguised as an educational presentation. The presence of numerous links to external PDFs, many hosted on Shopify, indicates a link farm strategy to distribute malicious content.

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/wb?keyword=presentation%20about%20education%20pdf In PDF document text
    • http://files.vmclegalservices.com/uploads/1/3/0/7/130776817/gutolinelefamebijux.pdfIn PDF document text
    • http://files.oneswaggent.com/uploads/1/3/0/7/130775868/noxajolepaguweju.pdfIn PDF document text
    • http://files.mfundishijhutyms.com/uploads/1/3/2/3/132303382/xakituwukunaga.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/1/0434/2562/8316/files/dugoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4166/0826/files/rasewisixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0323/9840/files/antiacidos_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8921/6167/files/xinadojubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fusuzirosaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1949/3785/files/vakovetumegegolabosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/xozivigiredixisug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4597/6224/files/zuzezewoxexobifesefeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/celebrity_cruises_excursions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8818/3456/files/zajotilemekurel.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 3

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_off00006758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6758 5260 bytes
SHA-256: 9866ed0842d3f348f30d2c663d6e6f7997301f401c78f6e323ba4e54226824f9
font_01_sfnt_off00007933.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7933 9232 bytes
SHA-256: 2a58001607d5b67793c2f2c30d7d39f8bfa0f1b5ec301da0124aeed285d88cda

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