MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm heuristic, indicating it is designed to host numerous external links. One of these links, 'https://ttraff.link/wix?keyword=why+do+i+hear+high+pitched+tone', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains the same text as the URL's keyword parameter, suggesting a lure to entice clicks. The ML classifier also 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.link/wix?keyword=why+do+i+hear+high+pitched+tone
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_7e670042cac344c49b87044d1014db7b.pdf
- https://static.usrfiles.com/ugd/b8c837_761b9148caf1494e9b92c5d24bcd24fc.pdf
- https://static.usrfiles.com/ugd/b8c837_a054bf630dbb487b9970bd36e6cc5104.pdf
- https://static.usrfiles.com/ugd/384ea4_56608f9797244c1c8445100851b54f1c.pdf
- https://static.usrfiles.com/ugd/b8c837_93fb442f601d4f1396acf8fe3e42e002.pdf
- https://static.usrfiles.com/ugd/c7a620_5b2a1dc375e24c30b98971efd155ce22.pdf
- https://static.usrfiles.com/ugd/eed56f_75e8a2103ad84a6a9dc7d5a0338e6553.pdf
- https://static.usrfiles.com/ugd/5fd5c1_58e60d9df1b3477dbe7b3aab41c5cc88.pdf
- https://static.usrfiles.com/ugd/74a852_faccbc9710dc448689dde90058584227.pdf
- https://static.usrfiles.com/ugd/4bb894_c010c527da8841299dca3236861b6df8.pdf
- https://static.usrfiles.com/ugd/b8c837_05380624090343b5bca55777ce2fa750.pdf
- https://static.usrfiles.com/ugd/eb4c03_928d917ec5264ff291c4d05cbec38080.pdf
- https://static.usrfiles.com/ugd/b56239_af353d35152c4a0fab216cfc2c587b29.pdf
- https://static.usrfiles.com/ugd/ad2ade_49c67dd472c24f9eac0cd5b6ef1b77a7.pdf
- https://static.usrfiles.com/ugd/74c34a_5b68ce9a885f4cd798d1016029b1e78b.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000116d3.bin2ebf24d22e50df8e91b8e506fb88d6031fc05e27ac23c3b179c3e077b1f84d30 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116D3 | 5240 bytes |
font_01_sfnt_off000128af.bindfce59c5f950b4f71c40be0cd2cc41dc887a2bd611b51ca89e6490aedf2ccb9f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128AF | 11944 bytes |
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