MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The ML classifier strongly flagged this PDF as malicious. The presence of a link farm suggests an attempt to manipulate search engine results or distribute content through a large number of similar PDFs. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware delivery site.
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=comunicacion+organizacional+descargar+libros
- https://static.usrfiles.com/ugd/b8c837_c401025e64504dfaa7d7ab5a1dde594b.pdf
- https://static.usrfiles.com/ugd/b8c837_da923d8e0cb145138256777d30adc7e8.pdf
- https://static.usrfiles.com/ugd/b8c837_6a5f2dd4af0e47188c580170f612d5ce.pdf
- https://static.usrfiles.com/ugd/b8c837_2b546b7558644c3e81c4cf2baa630048.pdf
- https://static.usrfiles.com/ugd/b8c837_88d4e4a0de87407eb2542fa5b09ffa29.pdf
- https://static.usrfiles.com/ugd/b8c837_2c9b3ba46b3143a5a3cb622ac9fb4cc7.pdf
- https://static.usrfiles.com/ugd/b8c837_2864c0b8778c45d29c5d8a9033527cd1.pdf
- https://static.usrfiles.com/ugd/b8c837_d2a9a602e43c4a968887a957642c7d41.pdf
- https://static.usrfiles.com/ugd/b8c837_8c683f470e8d4d2c9afb00afbd6570fe.pdf
- https://static.usrfiles.com/ugd/b8c837_3c110e82de454fb2bef28a9e1e904a6a.pdf
- https://cdn.shopify.com/s/files/1/0440/2675/7270/files/43306371617.pdf
- https://cdn.shopify.com/s/files/1/0431/3645/0717/files/bowflex_hvt_training_guide.pdf
- https://cdn.shopify.com/s/files/1/0436/9353/9482/files/somiwumivisiwokamid.pdf
- https://cdn.shopify.com/s/files/1/0434/3837/5074/files/5266732395.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_off00007060.bin183c6a29328678b473ff37a1d55ee2e373e7150b89169f3ee8c27a877ddfb3ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7060 | 5352 bytes |
font_01_sfnt_off00008276.bin4e5918208ac7dee49ca6b11912b0855441cf90c79252023ebc672b772308f9d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8276 | 11816 bytes |
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