MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=history+textbook+answers', suggesting a lure to a malicious site. The presence of a large number of external PDF links, many pointing to Shopify domains, further supports the link farm attack pattern. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=history+textbook+answers
- http://zudoxo.kellettcommunications.com/uploads/1/3/0/7/130738902/2036176.pdf
- http://files.kilmerschool.org/uploads/1/3/2/6/132681536/4142342.pdf
- http://files.goldendoodlesutah.com/uploads/1/3/1/1/131164023/sugapofoxodalef.pdf
- https://cdn.shopify.com/s/files/1/0434/9689/8724/files/texturas_dibujo_arquitectonico.pdf
- https://cdn.shopify.com/s/files/1/0433/7339/6133/files/advanced_cambridge_tests.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nunirisolifugonogebivaxez.pdf
- https://cdn.shopify.com/s/files/1/0433/6982/4407/files/calcitonina_como_marcador_tumoral.pdf
- https://cdn.shopify.com/s/files/1/0438/2870/7485/files/86400_seconds_in_hours.pdf
- https://cdn.shopify.com/s/files/1/0437/6556/3549/files/nyda_application_form_for_employment.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88406012193.pdf
- https://cdn.shopify.com/s/files/1/0434/0737/6546/files/chimaira_resurrection_rar.pdf
- https://cdn.shopify.com/s/files/1/0458/2752/2723/files/tangential_acceleration_non_uniform_circular_motion.pdf
- https://cdn.shopify.com/s/files/1/0436/7283/0105/files/ebook_bryophytes.pdf
- https://cdn.shopify.com/s/files/1/0431/1557/7504/files/40035249270.pdf
- https://cdn.shopify.com/s/files/1/0440/7685/9557/files/67272755856.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005ec0.bin57864d99e27943a986bd3be5bdf6b8311aba837f2884f99d8b688ed64b22bc65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EC0 | 5076 bytes |
font_01_sfnt_off00007027.bin76c6fcefa3c5d4a22857de8e1f10b4d2d9493c9c5206dbe682f2956075e98d7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7027 | 10024 bytes |
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