MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a mass of external links, including one pointing to a known malicious redirector. The primary malicious link is https://ttraff.ru/wix?keyword=sedra+smith+microelectronic+circuits+international+7th+edition+pdf, which is designed to lure users into clicking by appearing as a search result for a technical document. The document body is heavily obfuscated and contains embedded binary data, but the presence of the malicious redirector and the link farm heuristic strongly indicate a malicious intent to redirect users to harmful sites.
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=sedra+smith+microelectronic+circuits+international+7th+edition+pdf
- https://cdn.shopify.com/s/files/1/0435/7157/6993/files/abhimanyudu_kadu_veedu_arjunudu_song.pdf
- https://cdn.shopify.com/s/files/1/0428/1742/1479/files/17650591890.pdf
- https://cdn.shopify.com/s/files/1/0430/6924/3549/files/97713470054.pdf
- https://cdn.shopify.com/s/files/1/0434/7317/4680/files/understanding_comics.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1402562920.pdf
- https://static.usrfiles.com/ugd/a382ee_e77097b7991548b1b46a8cb5677cb815.pdf
- https://static.usrfiles.com/ugd/b8c837_844d9f2b42c34cabb1ba4e4308bc3965.pdf
- https://cdn.shopify.com/s/files/1/0435/2396/5079/files/negritude_movement.pdf
- https://cdn.shopify.com/s/files/1/0433/6274/6517/files/81227179325.pdf
- https://cdn.shopify.com/s/files/1/0432/2862/7107/files/ciencia_y_tecnologia_angel_o_demonio.pdf
- https://static.usrfiles.com/ugd/b8c837_e1883669ff4c45148f125acd4cf4194b.pdf
- https://static.usrfiles.com/ugd/c068f8_8a5d3d47cbd34b5c9710c353c66595f9.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_off00004ff8.bin8d98d31946517a706173c98f73ed045263462801b804cb50885eff68f069eb89 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4FF8 | 5576 bytes |
font_01_sfnt_off000062ce.bin005d70e4abb419d0e07a620263481fd60e6c3501d8951c80871cb2ced5e6b1ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62CE | 10836 bytes |
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