MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by a machine learning classifier and heuristic analysis. It contains a large number of embedded links, with at least one pointing to a known malicious redirector (ttraff.com). The document body, though heavily obfuscated, contains references to the redirector URL and numerous other URLs hosted on static.usrfiles.com, suggesting a link farm designed to lure users to malicious sites. The primary attack pattern involves redirecting users through malicious infrastructure.
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.com/wix?keyword=etapas+de+la+educacion+comparada
- https://static.usrfiles.com/ugd/b8c837_fb4b813d100d407e8cdd5574de92dee7.pdf
- https://static.usrfiles.com/ugd/b8c837_0b72c99a7be94c8e8a3f9b615f8286df.pdf
- https://static.usrfiles.com/ugd/b8c837_2ea3711ed59f43fa8387ef0deb4c719f.pdf
- https://static.usrfiles.com/ugd/b8c837_52f3afe6cc2a4343b50c8456402e07f7.pdf
- https://static.usrfiles.com/ugd/b8c837_1c9c9cb729df4c818de01045768e1714.pdf
- https://static.usrfiles.com/ugd/b8c837_fc1ee5ea73794072a29555a88c2553cf.pdf
- https://static.usrfiles.com/ugd/b8c837_2fbaa83ccf6542bd8792aaad004e0829.pdf
- https://static.usrfiles.com/ugd/b8c837_4a3ae670a5fe4fddbc5ddde7e7f2dc8a.pdf
- https://static.usrfiles.com/ugd/b8c837_35bd4818978648018c63073c3b3f41d4.pdf
- https://static.usrfiles.com/ugd/b8c837_5ba32c53e07e478bb5d9789dcc64f4a8.pdf
- https://static.usrfiles.com/ugd/b8c837_e28ad10048174f96ad44a077dbc55c73.pdf
- https://static.usrfiles.com/ugd/b8c837_b6a6978593d34cf9a289c5df23707cec.pdf
- https://cdn.shopify.com/s/files/1/0428/4976/3494/files/scanned_to_word_converter_online_for_free.pdf
- https://cdn.shopify.com/s/files/1/0433/5009/8085/files/10422511874.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_off00005d0d.bina1d0ca5d59bc40b6e68a86f1b9b160f278a4f7dee64811063b0e4c66b0169116 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D0D | 5176 bytes |
font_01_sfnt_off00006e81.bin49c732f48f56e82e3f5e252ca841af37bd480732083f9ec032955f787fe6627f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E81 | 11024 bytes |
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