MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, one of which points to a known malicious redirector at 'ttraff.ru'. This heuristic, combined with the ML classifier flagging the PDF as malicious, strongly suggests a phishing or malware delivery attempt. The document body, though heavily obfuscated, also contains the same malicious URL, reinforcing its role as a lure. The presence of numerous other PDF links suggests a link farm or SEO poisoning tactic to distribute the malicious content.
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=utilitarianism+formalism+and+virtue+ethics
- https://static.usrfiles.com/ugd/599026_ff132d4cdc4040b8a970b2aca492d4c3.pdf
- https://static.usrfiles.com/ugd/493135_cbd4a2770e4f4e018e196db4b2387f76.pdf
- https://static.usrfiles.com/ugd/77d535_59d0f407a6ff4b03a2e8c30800f32765.pdf
- https://static.usrfiles.com/ugd/f1780b_c1df098be34948c58d466b6cb366a84c.pdf
- https://static.usrfiles.com/ugd/5e81b9_6b8a20ce38bd4be7bee5128466d95ad9.pdf
- https://static.usrfiles.com/ugd/b8c837_e62dca9eb4164cc580e4e8856dd25dcd.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wesuwalaloluxafim.pdf
- https://cdn.shopify.com/s/files/1/0431/4651/0504/files/90389393226.pdf
- https://cdn.shopify.com/s/files/1/0435/0771/2155/files/vadotesidexebirenora.pdf
- https://cdn.shopify.com/s/files/1/0432/0781/9422/files/82950295274.pdf
- https://static.usrfiles.com/ugd/a6e5e9_fdcdf67751f742dcb787ebf15fc2bf9e.pdf
- https://static.usrfiles.com/ugd/1fa6dd_b2dd9056216a459d9fc0583cc19cb586.pdf
- https://static.usrfiles.com/ugd/f1d680_2e21176124ca466fa2f2de94e3505e19.pdf
- https://static.usrfiles.com/ugd/b8c837_f601a48014ad4ce6a86afe8b1550cd5c.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00009ddb.binb112adf187d0c99c44eba90ba04561e6c1db6c0259effd3a9dbc43db48977b88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DDB | 5192 bytes |
font_01_sfnt_off0000af5b.binf23300cbff33a65fda29cfac5ba2ebce610718464728a4bc2654b66c1e3ab214 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF5B | 10108 bytes |
font_02_sfnt_off0000d1d8.binff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1D8 | 4324 bytes |
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