MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains references to 'giancoli fisica pdf' and the authoring application 'wkhtmltopdf', suggesting a lure. The presence of a malicious redirector indicates an attempt to lead the user to a harmful site, likely for further exploitation or phishing. The ML classifier strongly supports the malicious nature of this PDF.
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=giancoli+fisica+pdf
- https://static.usrfiles.com/ugd/b8c837_00b3841e60a445598df8d3c5c2635e84.pdf
- https://static.usrfiles.com/ugd/b8c837_17edc20b91194e5abf049edc628f62fd.pdf
- https://static.usrfiles.com/ugd/b8c837_a0be487f52944c82adfb2723d1fd4d16.pdf
- https://static.usrfiles.com/ugd/b8c837_1e8dad06ab114994a11c46421c81dde1.pdf
- https://static.usrfiles.com/ugd/b8c837_669cf7f73d7d47788a173a295d4e4d50.pdf
- https://static.usrfiles.com/ugd/b8c837_11c40feae2794d0dac1f2d1dfb00b9a6.pdf
- https://static.usrfiles.com/ugd/b8c837_6605dc36e26f45c5b6fae976ebdc37d5.pdf
- https://static.usrfiles.com/ugd/b8c837_b1013032ceb64be4bed88212d48d2b18.pdf
- https://static.usrfiles.com/ugd/b8c837_c20241a9b4ca4ef0952e996806a937c2.pdf
- https://static.usrfiles.com/ugd/b8c837_d1945de8c2834e48916708e4aeb9e4e6.pdf
- https://static.usrfiles.com/ugd/b8c837_acf1f58ff19440b29d742b84ceaad3bc.pdf
- https://static.usrfiles.com/ugd/b8c837_67223690712b47959c7584093a5416d9.pdf
- https://static.usrfiles.com/ugd/b8c837_548c94c05dee4178b9bbfeab9398e19c.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_off00005e8e.bin423f13c651c7003182f2febce965735c62d16dd8f85c95c80e187b430dde799e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E8E | 5084 bytes |
font_01_sfnt_off00006ff3.bin095a14fdbfa5c13bb4dc8469f32610952c5933a0be1ca61784abb2da4cc1d59d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FF3 | 9884 bytes |
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