MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to scholarship applications and the malicious URL. The PDF also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious content. The primary malicious URL is 'https://ttraff.ru/pify?keyword=university+scholarship+application+letter+sample+pdf'.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=university+scholarship+application+letter+sample+pdf In PDF document text
- http://files.usauwrwomen.com/uploads/1/3/1/3/131380438/kusaxizudutitu.pdfIn PDF document text
- http://files.muse-crew.com/uploads/1/3/2/7/132740214/896f81191.pdfIn PDF document text
- http://files.innovationsquareboston.com/uploads/1/3/2/6/132695492/5bbdf41.pdfIn PDF document text
- http://files.ketchikanwhales.com/uploads/1/3/1/1/131164250/551949.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0429/2060/7900/files/90711578586.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3613/7882/files/29630335043.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8105/6935/files/15967365007.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3907/1130/files/pdf_attachment_in_mailchimp.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1806/7876/files/merusirixiguloju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0935/9520/files/skyline_pigeon_lyrics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0032/3481/files/peminisixosadodesizomijow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7133/2767/files/litujekana.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1916/6105/files/nedawurewugelofedur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5331/8298/files/vozuvet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3993/2064/files/teruweno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2223/8374/files/dubiru.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006bba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BBA | 5336 bytes |
SHA-256: 09ad514a28ac97842c589992c60925809f865b8f129c77a4e2b97ea3ed2e9f6d |
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font_01_sfnt_off00007db8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DB8 | 10784 bytes |
SHA-256: c2c8117e692f6308d98d3975e05ff5f80ea62b482dccac66376e59cde73de11a |
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font_02_sfnt_off0000a268.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA268 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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