MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links to other PDF documents, a technique often used in SEO link farms. One of these links, https://ttraff.cc/wix?keyword=la+condicion+humana+andre+malraux+rese%25C3%25B1a, is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be corrupted or obfuscated, preventing a deeper analysis of its specific lure.
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.cc/wix?keyword=la+condicion+humana+andre+malraux+rese%25C3%25B1a
- https://static.usrfiles.com/ugd/b8c837_4044c70bd1634e7f91176e2bca3425b4.pdf
- https://static.usrfiles.com/ugd/b8c837_f4afea57049f47549d6eebe7b958a90e.pdf
- https://static.usrfiles.com/ugd/b8c837_2178fc3e576e45d3806a5c0956ce27b2.pdf
- https://static.usrfiles.com/ugd/b8c837_e8d5142e7c894a51bdee1eaed8d5c0eb.pdf
- https://cdn.shopify.com/s/files/1/0427/7967/2735/files/76776899522.pdf
- https://cdn.shopify.com/s/files/1/0429/5183/5801/files/gefewemor.pdf
- https://cdn.shopify.com/s/files/1/0428/0100/4707/files/sovuwulinuwegepiwavapegi.pdf
- https://cdn.shopify.com/s/files/1/0439/1449/4107/files/texas_food_handlers_course_answers.pdf
- https://static.usrfiles.com/ugd/b8c837_b680fbf460504cafb5037c88a2e77bf4.pdf
- https://static.usrfiles.com/ugd/61b8bf_304e87d022a74f5680acec894f1ed06f.pdf
- https://static.usrfiles.com/ugd/b8c837_7d7af03a04d145f7a49d1f0b9cdc5789.pdf
- https://static.usrfiles.com/ugd/5a1791_65c92cf2640e4bf5b972b19a6ea9c0fc.pdf
- https://static.usrfiles.com/ugd/565485_20563bbac2294294be5796dd8754f594.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_off00006875.bin09ab346f4a18d3aac9a5fe50055478beeefcd5a65a608ce872d9677c5af92021 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6875 | 5400 bytes |
font_01_sfnt_off00007a5c.binec01a01385c6ee18aa6eac00185eabb381ec3fe21cf0f8925a41d6312a2c4ccd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A5C | 11368 bytes |
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