MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting a phishing or scam attempt disguised as a 'medical terminology dictionary'. The presence of many external links, including to Shopify, indicates an attempt to create a link farm for SEO purposes, likely to distribute malicious content or phish for credentials. The ML classifier also strongly indicated maliciousness.
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/wb?keyword=kamus%20terminologi%20medis%20pdf In PDF document text
- http://vuwida.hartfordcathedral.org/uploads/1/3/0/8/130874359/jatekimefevixofe.pdfIn PDF document text
- http://files.therosievida.com/uploads/1/3/0/8/130815213/dopumonabag.pdfIn PDF document text
- http://files.ringmakers.com/uploads/1/3/1/4/131483138/topavasusujolifi.pdfIn PDF document text
- http://files.1small-step.com/uploads/1/3/0/7/130740262/govur-velolifiki-tofujimumopej.pdfIn PDF document text
- http://files.brandysmassagevictoria.com/uploads/1/3/0/8/130874614/4646976.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/1/0435/3658/0757/files/2043550639.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4406/8773/files/vodibasorugapuwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4653/5322/files/the_ultimate_guide_to_business_process_management.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fapodepemiretewuroraga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3439/5295/files/38327443370.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9927/5935/files/67027872108.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8034/3967/files/86416949799.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3287/1074/files/calendario_spal_2020_19.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1618/3205/files/zavot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4755/9067/files/vertex_form_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2768/4760/files/sojasugipalapatubepevem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5072/9634/files/91077891601.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007844.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7844 | 5328 bytes |
SHA-256: 8c3af7316daad8c78d23123a10f5e3ef96315a55429b816b83e352115b4940fc |
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font_01_sfnt_off00008a51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A51 | 14968 bytes |
SHA-256: 0f66757a2c8df78f8e17666aee63ada722d7ff486680948ac10550966204ff0b |
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font_02_sfnt_off0000b8d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8D8 | 16164 bytes |
SHA-256: ff1ea3a1df6387b973574bca2b18086736f4800eb06b6bc6003891141b8a4e57 |
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