Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ee0a6fccc5cd5f3…

MALICIOUS

PDF

43.3 KB Created: 2020-08-10 11:23:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 19e953ad920f7653b54f01f066519826 SHA-1: 6608a77c50edb35fa2a9279cbc4800d9094f6ad5 SHA-256: 6ee0a6fccc5cd5f3e8df01ff460f4ccbe4909e6c7c101274311ad16f1875df11
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a link farm hosted on Shopify, which ultimately redirect to a malicious URL. The primary redirector URL is https://ttraff.ru/pify?keyword=biophysics+syllabus+pdf, suggesting a phishing or scam attempt disguised as a syllabus. The ML classifier strongly indicates maliciousness, and the presence of multiple redirector links supports a malicious intent.

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=biophysics+syllabus+pdf In PDF document text
    • http://files.saintmatthiasschool.org/uploads/1/3/1/3/131384374/5208378.pdfIn PDF document text
    • http://files.philvantee.com/uploads/1/3/2/7/132712251/fukafefiwo.pdfIn PDF document text
    • http://rapubukuv.multimediocrityshow.com/uploads/1/3/0/8/130813612/1ffa4b075e.pdfIn PDF document text
    • http://files.sunshinerestaurant.ca/uploads/1/3/1/6/131606526/6104264.pdfIn PDF document text
    • http://files.nanaspizzapr.com/uploads/1/3/1/3/131379246/lemavojojojiwe.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/1/0432/6568/7717/files/84368738446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7583/6835/files/introduction_to_structural_dynamics_and_aeroelasticity_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0134/7226/files/arbitral_award.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0814/8127/files/25453131045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83142526711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9423/files/body_language_tips_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9477/files/37773648469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9993/8211/files/wusinuvagozoves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/punitanajatedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5282/5767/files/43881997074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1570/6523/files/autumn_leaves_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8458/2813/files/biodynamic_compost.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 2

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_off00006aa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA8 5440 bytes
SHA-256: c79d75b1bb2cd39d16acccb49caf059c087b10f05512e7183cae5becb50bd983
font_01_sfnt_off00007d2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2D 10312 bytes
SHA-256: a3000958592950c26f4ea2f944ace872bfdde528adfd8f8e16f9f24f63f53b0a

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