MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was identified as malicious due to a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=variable+ind%25C3%25A9pendante+psychologie'. Additionally, numerous links were found pointing to a link farm hosted on 'static.usrfiles.com', suggesting a coordinated effort to distribute malicious content. The ML classifier also 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.com/wix?keyword=variable+ind%25C3%25A9pendante+psychologie
- https://static.usrfiles.com/ugd/bfbc46_5d8637a582724bfaa5a7c4978482fa50.pdf
- https://static.usrfiles.com/ugd/cc14e4_adf3bcc0c26546a3b3774773a0ad7937.pdf
- https://static.usrfiles.com/ugd/e2c6c1_96ecb72dd7ab421493a4cb68e75e0ba9.pdf
- https://static.usrfiles.com/ugd/d3758e_ff6baa76fd42489f89c1b7d73b560427.pdf
- https://static.usrfiles.com/ugd/cc14e4_c55de1642786419d8680e4ea43a12938.pdf
- https://static.usrfiles.com/ugd/0047a4_05ebb74503cd49f59643bece9b904801.pdf
- https://static.usrfiles.com/ugd/b88e3d_37d5f529383e473cb8bdf5cdc2f4ed06.pdf
- https://static.usrfiles.com/ugd/4b874d_113593b9006b474dbaf20be4e2129f0b.pdf
- https://static.usrfiles.com/ugd/0c4177_4b2df26e4ca84830b9f8b1b25fc28260.pdf
- https://static.usrfiles.com/ugd/b8c837_1779f72805b5484d8595fa4a2d796370.pdf
- https://static.usrfiles.com/ugd/b8c837_184b8fb892aa49e5bf07b8003eeaf816.pdf
- https://static.usrfiles.com/ugd/68ec51_132e854e717e4571b1387ff8899b3469.pdf
- https://cdn.shopify.com/s/files/1/0431/7023/4527/files/83408790050.pdf
- https://cdn.shopify.com/s/files/1/0437/2440/6933/files/2018_alpina_b7.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_off0000607d.bin4696605c4b0c5626a879de08225a30068a662b01d7d50e3a9d36c02e3d1977b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x607D | 5684 bytes |
font_01_sfnt_off0000737a.binc8ff4c8673773c6e4fb4916ecd762b1e2d3b6ca750d536feb1f381cc366c3324 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x737A | 11624 bytes |
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