MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wix?keyword=pdf+file+sample+online' which is flagged as malicious. Additionally, a large number of links to PDF files hosted on Shopify and static.usrfiles.com were found, suggesting a link farm or SEO poisoning attempt. The ML classifier strongly indicated maliciousness.
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=pdf+file+sample+online
- https://cdn.shopify.com/s/files/1/0433/8126/0438/files/zoligubutuzixegufu.pdf
- https://cdn.shopify.com/s/files/1/0428/2135/3635/files/11745442589.pdf
- https://cdn.shopify.com/s/files/1/0436/3547/4590/files/89284040098.pdf
- https://cdn.shopify.com/s/files/1/0433/2116/3941/files/payroll_and_accounting_applications.pdf
- https://cdn.shopify.com/s/files/1/0432/4058/7431/files/furniture_cad_dwg.pdf
- https://static.usrfiles.com/ugd/b8c837_442a99682b674e5989cf22ddb6f6c15f.pdf
- https://static.usrfiles.com/ugd/7ea8bb_355cadca23c14efb9b1919b72f5d97ec.pdf
- https://static.usrfiles.com/ugd/32777b_a5a8ca673bff44eabe29c3be1200d31d.pdf
- https://static.usrfiles.com/ugd/9cc572_d8f77640fbb34e5eacc0b62465ae1112.pdf
- https://static.usrfiles.com/ugd/b8c837_d387e0ed889c4da19f37f4ee07faba37.pdf
- https://static.usrfiles.com/ugd/b8c837_e9f3a8d2e9e54ebfbcc331b2136e7114.pdf
- https://static.usrfiles.com/ugd/d17951_b8bd6d008c44485483d348f59f1f62e5.pdf
- https://static.usrfiles.com/ugd/3835dd_bf9f9493da3a4323b1ef85104302b70b.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_off00004d7f.binf4e772e21319666bd09184ce31c534dae626b7529b3e8493a131b84517554de7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4D7F | 5092 bytes |
font_01_sfnt_off00005ec8.bin73a4752f420cb356ee4d77b0ca9ee3e364dd2373cbc943510f8d6b557dc49a5e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EC8 | 10032 bytes |
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