MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.club/wix?keyword=electron+transport+chain+worksheet+answers'. The document body also contains this URL, suggesting a lure to external content. The PDF also exhibits characteristics of a link farm, with numerous embedded links to other PDFs. The ML classifier strongly flagged this PDF as malicious.
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.club/wix?keyword=electron+transport+chain+worksheet+answers
- https://static.usrfiles.com/ugd/1a94e8_9d59b438bfa14903a644f3fa61c7cf12.pdf
- https://static.usrfiles.com/ugd/455f95_df2cefa0fbc848fb820b66c4d1d285db.pdf
- https://static.usrfiles.com/ugd/85d67f_4ba21bbd69fc42a8ae75577e0a331ccd.pdf
- https://static.usrfiles.com/ugd/87a178_ea96b8b92e4e4c1897b51b2a5e803d17.pdf
- https://static.usrfiles.com/ugd/278743_56fb748feb854814b3b7bfb2af253da3.pdf
- https://static.usrfiles.com/ugd/122077_70b5d0a29c454e2495ef5b5cc8cfda17.pdf
- https://static.usrfiles.com/ugd/9b7d8a_d3ce50b80af249d699b0776516d91230.pdf
- https://static.usrfiles.com/ugd/575363_d2c2dc20d67743308130f5f6b761ca74.pdf
- https://static.usrfiles.com/ugd/b8c837_607fbfb1d5f645238b825f8f09e0339f.pdf
- https://static.usrfiles.com/ugd/ee9d3f_2222238fe77244d2b45d2f1aa01027e1.pdf
- https://static.usrfiles.com/ugd/e5a943_609346758a4441fd88a1ee2138dabfb6.pdf
- https://static.usrfiles.com/ugd/5af86b_e4f378201116439caf400a46dbe96ce7.pdf
- https://static.usrfiles.com/ugd/74c34a_2c31ef3ce1cd4afb8cdff5c05d6bcb9d.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_off0000692f.bin2c126b4a574558ceeb5ce32ab468a1b128752a506df6aa3d71e2ff4ee85559b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x692F | 5132 bytes |
font_01_sfnt_off00007ab7.bin7c1ef6db02aa8378480ca83d97d7d8600b9cf7baafaf9915a0c0164f62d0e189 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AB7 | 10364 bytes |
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