MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link to 'https://ttraff.ru/wix?keyword=antecedentes+de+la+reposteria'. Additionally, it features a link farm of 30 SEO-optimized PDF documents hosted on static.usrfiles.com, designed to lure users to potentially malicious content. The ML classifier strongly indicated maliciousness.
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=antecedentes+de+la+reposteria
- https://static.usrfiles.com/ugd/e2b09b_d023f73a887643e29a14a2a6f8e190df.pdf
- https://static.usrfiles.com/ugd/e02969_9d577241600543f99e617e3fcc1f39d8.pdf
- https://static.usrfiles.com/ugd/76156b_f8937982980d4a95b6dca75cdcda7389.pdf
- https://static.usrfiles.com/ugd/b8c837_0725ec1cacfc4d5fa647dcaf7a2bfee7.pdf
- https://static.usrfiles.com/ugd/0d2908_a004cf10d8514857b67f90372c83f573.pdf
- https://cdn.shopify.com/s/files/1/0429/9486/0191/files/tesis_sobre_administracion_publica.pdf
- https://cdn.shopify.com/s/files/1/0432/7096/3350/files/vofamuxisijarizofawid.pdf
- https://cdn.shopify.com/s/files/1/0432/9901/2766/files/wurawerajinuwokigapifuwu.pdf
- https://cdn.shopify.com/s/files/1/0432/4920/5405/files/51475090405.pdf
- https://static.usrfiles.com/ugd/f09a9d_0de23ffaefa84fe39ff8135646234b18.pdf
- https://static.usrfiles.com/ugd/accd1f_d80731837a1f475fb3085094b54e67ff.pdf
- https://static.usrfiles.com/ugd/1fbf8b_78da7719583144d4b985bf00de85a7d4.pdf
- https://static.usrfiles.com/ugd/b8c837_c5c3eec5cda04c8e9819206fed996b30.pdf
- https://static.usrfiles.com/ugd/850f07_d2681864f41f479bb7fa05a8b145923a.pdf
- https://static.usrfiles.com/ugd/b8c837_811a76de6e2a46d895548fab17035b52.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_off00006d88.bin50a1e15b75cac71fdb71d6ae6357262525eff54a6f359e918ebd0cd8210e5495 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D88 | 5056 bytes |
font_01_sfnt_off00007ebf.bin23c8e4e96cca3819279496e4a921847a2ee62d6987382a68112ae287ae8a7077 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EBF | 11068 bytes |
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