MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=cbt+for+adhd+worksheets'. This URL is presented within the document body, suggesting a social engineering lure to trick users into clicking it. The PDF also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on 'static.usrfiles.com'. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted from this sample.
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=cbt+for+adhd+worksheets
- https://static.usrfiles.com/ugd/b8c837_7d10fabd072346dda4cf7dba52b25347.pdf
- https://static.usrfiles.com/ugd/0d002d_8ae4afccf1dc40adb739dd2fe89e0b82.pdf
- https://static.usrfiles.com/ugd/b8c837_115748a129394b8687d7017c60d30874.pdf
- https://static.usrfiles.com/ugd/5899d5_40449a3d835d49dd94560b78ccf2fa4f.pdf
- https://cdn.shopify.com/s/files/1/0437/5012/9813/files/vekoxivenade.pdf
- https://cdn.shopify.com/s/files/1/0431/5388/3293/files/30775944544.pdf
- https://static.usrfiles.com/ugd/79cb75_f7dbacfbe79d4a25a4f64f6c9cf32d79.pdf
- https://static.usrfiles.com/ugd/b8c837_618008f2ae2d4612b1a4364c1bd7a72d.pdf
- https://static.usrfiles.com/ugd/b8c837_dec6a04668c64a0c89e271493b630ae2.pdf
- https://static.usrfiles.com/ugd/b8c837_86d9ae27a821481aa156e7006b923e4a.pdf
- https://static.usrfiles.com/ugd/aef5b7_2d7f87994cdd4325adfc57fc3f1f3d2c.pdf
- https://static.usrfiles.com/ugd/451461_8ffff1acd09448909600daf1fe521981.pdf
- https://static.usrfiles.com/ugd/0789d5_c58476c56a9f43fa9c1920b199f63da9.pdf
- https://static.usrfiles.com/ugd/8d57bd_2e4806aa4b2647c3833a8581bfddfc65.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_off00007320.bin4c7faad5810e7f20d39ad14761006598c3d123aa3cdc2161f985ced5fdda0a60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7320 | 5164 bytes |
font_01_sfnt_off000084b9.bin7c1dc1f4f60403f18a08ae958647d1a094f1ba77749a3a7404847e7034d11e6e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84B9 | 9828 bytes |
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