MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF contains a mass of external links, many of which point to Shopify and static.usrfiles.com domains, but one critical link, 'https://ttraff.cc/wix?keyword=fbat+test+study+guide', is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains this same malicious URL and appears to be a lure related to a 'fbat test study guide'. The ML classifier strongly indicates maliciousness, supporting the conclusion that this PDF is designed to redirect users to harmful sites.
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.cc/wix?keyword=fbat+test+study+guide
- https://cdn.shopify.com/s/files/1/0432/1827/2423/files/epa_form_3520_1.pdf
- https://cdn.shopify.com/s/files/1/0435/4929/4756/files/cemetery_dance_magazine.pdf
- https://cdn.shopify.com/s/files/1/0445/4907/9204/files/upper_benue_trough.pdf
- https://cdn.shopify.com/s/files/1/0430/8379/2548/files/johnson_controls_building_management_system.pdf
- https://cdn.shopify.com/s/files/1/0436/4809/0270/files/when_the_man_comes_around_lyrics.pdf
- https://static.usrfiles.com/ugd/b8c837_50fe117e663543b1a93ec9e9748e6e84.pdf
- https://static.usrfiles.com/ugd/b8c837_8895a66aa5e94c0aa5629c65ffb013c7.pdf
- https://static.usrfiles.com/ugd/e3834b_68b333860186478e981ee6fa88d7bae6.pdf
- https://static.usrfiles.com/ugd/b8c837_4a0d3bf25dd049388d06aee2dfef8673.pdf
- https://cdn.shopify.com/s/files/1/0433/8909/1998/files/83377319699.pdf
- https://cdn.shopify.com/s/files/1/0435/1187/3688/files/zegaboguzizu.pdf
- https://static.usrfiles.com/ugd/7603ae_4b9d43be160b4b73af0d784d577d70d6.pdf
- https://static.usrfiles.com/ugd/469aea_6397af716f554cb78577a627b3b43c9f.pdf
- https://static.usrfiles.com/ugd/b8c837_1b71d75ab8ef4596b2a344b295b1484e.pdf
- https://static.usrfiles.com/ugd/906e9f_a95d419e8d9b4b26ba5a7c088fb98cc9.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_off0000689f.bin775974df841110ea6eb2c2627886e133dfbac2be76d597f61b200735c59f0d55 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x689F | 5064 bytes |
font_01_sfnt_off000079f6.bin0c242ebecc4573fb4caaebff1986747cc7822388b5e8fcbaee5b296a358de775 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79F6 | 10304 bytes |
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