MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same URL and references to other PDF files hosted on static.usrfiles.com. This indicates a link farm designed to lure users to malicious content, likely for phishing or malware delivery.
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=libro+completo+de+obligaciones+civiles+manuel+bejarano+sanchez
- https://static.usrfiles.com/ugd/a4d998_2eb7cb0c03334a0990836cd54524f303.pdf
- https://static.usrfiles.com/ugd/b8c837_f1b405fb8ba84b7eadd8756f7b612aad.pdf
- https://static.usrfiles.com/ugd/b8c837_3f1b2fc291d84aa599e22554a97cf840.pdf
- https://static.usrfiles.com/ugd/b8c837_138a41a3984743aea227988c9871ca9b.pdf
- https://static.usrfiles.com/ugd/b8c837_a16243ebcdbd4868bbc87085dd1323c0.pdf
- https://cdn.shopify.com/s/files/1/0433/3685/9813/files/32525060533.pdf
- https://cdn.shopify.com/s/files/1/0434/1311/0951/files/90314704045.pdf
- https://static.usrfiles.com/ugd/217d68_0274674ceba04459969ac99d4354d447.pdf
- https://static.usrfiles.com/ugd/0047a4_ba4504fac9ed4c45929114a385fffc56.pdf
- https://static.usrfiles.com/ugd/19ce5d_9313b547fead4467848002cad2d88d8c.pdf
- https://static.usrfiles.com/ugd/a18aa6_b7a8f1abbdfd4c6eb985b20faaa732c9.pdf
- https://static.usrfiles.com/ugd/19ce5d_38a336b08e1d4ebf99b4d01710e5d247.pdf
- https://static.usrfiles.com/ugd/7dd30d_5dd0d5b4d2c5450b89b337985412628c.pdf
- https://static.usrfiles.com/ugd/c068f8_d09782db98404c8abcbb8b681267a7c3.pdf
- https://static.usrfiles.com/ugd/9e41f0_f5d5405cc35442db8b7d2e59242a0dee.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_off000046db.bin1fb769ea59cb82e24a2685a9a35c5215abfef3e33bedadee78e1968f39cbe3f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x46DB | 5756 bytes |
font_01_sfnt_off00005a44.bin95eff49d2ee386c125fce2bd97033cec3be3bfbe2b7ff3ce5fe2e7fc1b946968 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A44 | 9508 bytes |
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