Malware Insights
The PDF file was flagged as malicious by a machine learning classifier and contains a significant number of embedded links. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/wix?keyword=latex+template+formal+letter'. Another heuristic indicated a PDF link farm, with many links pointing to 'static.usrfiles.com'. The document body, though heavily obfuscated, also contains the URL 'https://ttraff.com/wix?keyword=latex+template+formal+letter' and several URLs from 'static.usrfiles.com'. This suggests a phishing or malware distribution attempt leveraging a link farm to obscure the final malicious destination.
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=latex+template+formal+letter
- https://static.usrfiles.com/ugd/d2cc1f_706a344492694d7cbed5644cfe0d4f37.pdf
- https://static.usrfiles.com/ugd/b8c837_d2a1fcf02e7b413fa64c9be161872fc0.pdf
- https://static.usrfiles.com/ugd/69b86f_04b28c47b106400194cc06083b13f6ce.pdf
- https://static.usrfiles.com/ugd/4dd980_2795b86b2fad4999a1adc1569d0431c8.pdf
- https://static.usrfiles.com/ugd/52b593_8ca27c11a70e492190e2843e2c6fe0d3.pdf
- https://static.usrfiles.com/ugd/80bfa9_67317bb9afb6420fa8769a2e141e00ca.pdf
- https://static.usrfiles.com/ugd/07ef24_2230d7bf912d42a6933c016e625d7e1c.pdf
- https://cdn.shopify.com/s/files/1/0428/6241/1942/files/zafowuxenegejoxasir.pdf
- https://cdn.shopify.com/s/files/1/0432/4343/8242/files/mimagenujazewe.pdf
- https://static.usrfiles.com/ugd/7ff653_09b8ee274dff4028bdedfe5048e827aa.pdf
- https://static.usrfiles.com/ugd/63022f_0ba5e257695a4148ae753cacb35c11f7.pdf
- https://static.usrfiles.com/ugd/b8c837_496c8eb36ba64e1a8770a0d32e39d74c.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_off00006df7.binbfcc07b66d5a4426d87a1f2a0ccd929b7f679e680cf89a5e5e512c4a281f4ece |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DF7 | 4876 bytes |
font_01_sfnt_off00007e86.bin755158bcd5ccd76667fd65a09a3f8986256fb53c99b3a0625fd79937e7d56842 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E86 | 11048 bytes |
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