MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/wix?keyword=erd+case+study+examples+with+solutions+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the document's primary purpose is to trick users into visiting this malicious site. The PDF also contains a large number of external links, indicating a link farm or SEO poisoning attempt.
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/wix?keyword=erd+case+study+examples+with+solutions+pdf
- https://static.usrfiles.com/ugd/b8c837_382abbe480fc4d1691a043d002b1885d.pdf
- https://static.usrfiles.com/ugd/b8c837_eeb644a8260646139682e89063430a1d.pdf
- https://static.usrfiles.com/ugd/b8c837_51fe41c0722f429dbb50cc7821b345d2.pdf
- https://static.usrfiles.com/ugd/b8c837_6740bb7f8460431ab36f36b20bc4be53.pdf
- https://cdn.shopify.com/s/files/1/0437/1510/0826/files/95247903969.pdf
- https://cdn.shopify.com/s/files/1/0447/8962/9085/files/ejercicios_enlaces_quimicos_4_eso.pdf
- https://cdn.shopify.com/s/files/1/0431/3553/3218/files/test_psicologico_del_arbol.pdf
- https://cdn.shopify.com/s/files/1/0430/2074/6906/files/morulov.pdf
- https://cdn.shopify.com/s/files/1/0431/2032/8864/files/dokekunasife.pdf
- https://static.usrfiles.com/ugd/b8c837_52ec838016c447a4950c447996aae5ec.pdf
- https://static.usrfiles.com/ugd/b8c837_2bcb0b902e1a4dbcb0bfe0b9d88f5f2d.pdf
- https://static.usrfiles.com/ugd/b8c837_c6913ae6bdec4ea0aebe9d4c3286ee4c.pdf
- https://static.usrfiles.com/ugd/b8c837_fb33f4e8c93a45b0a8f7d5170809031b.pdf
- https://static.usrfiles.com/ugd/4b874d_90d3a713b0ad4dbeb5c5afed4edc8aea.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008be8.binb7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BE8 | 2828 bytes |
font_01_sfnt_off000095e3.bind09c0d8ffb2b6dbd88f4d0383d40e50ee56e6a55fd354c400b4b1fbeef6bb04f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x95E3 | 5612 bytes |
font_02_sfnt_off0000a8eb.bin5386ad3fa36f3a956a63805e60832de58109578e4c516d25c3a3d2910c435a90 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA8EB | 11332 bytes |
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