MALICIOUS
194
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 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to 'static.usrfiles.com'. The document body, though heavily obfuscated, contains the same malicious URL and references to fonts, suggesting a lure to entice users to click the link. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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/pify?keyword=baskerville+semibold+italic+font+free In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_0059d019dd9447f2a0ece78b553d13f6.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_29ffe30b108647d0a3a8c20d0ba16e14.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_b34d500d95844267aa7a0fb2f1b9653a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_10ef68244060448abd7ba5d1a41ddbec.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_a234725131204072be73204f96052323.pdfIn PDF document text
- https://static.usrfiles.com/ugd/0a0016_59454e5c580a4f86867f72c5d8a7a29e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/79e5df_8ba808d014564ab98f37378b85d96c34.pdfIn PDF document text
- https://static.usrfiles.com/ugd/82e28d_429b306ee5924cb58863acf319e31582.pdfIn PDF document text
- https://static.usrfiles.com/ugd/f96b02_f111c96f49714fdca6985647c968da58.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75877947267.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2873/3352/files/72859422527.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5369/4626/files/78752591918.pdfIn PDF document text
- https://static.usrfiles.com/ugd/e73fea_abb3fcf93e4d4c7b9c1392b47c6ee8c0.pdfIn PDF document text
- https://static.usrfiles.com/ugd/a474dd_a079daa0c3db472d83e1558e46c95fc8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/529dbf_d2f6a28e684042329eb8c3a264afff83.pdfIn PDF document text
- https://static.usrfiles.com/ugd/de60da_b0b79ec0afcc47febb67635c1c53212f.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005283.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5283 | 5480 bytes |
SHA-256: 90f97d74957dd8bcb5ac9477e3966ac017e05963e89b41d9d21f0b8defc2ca99 |
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font_01_sfnt_off0000651e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x651E | 11244 bytes |
SHA-256: f82ab70e504e9e0f38836394fa572e42c702b25a97ff483ce14964c2f94a0487 |
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font_02_sfnt_off00008af4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8AF4 | 16084 bytes |
SHA-256: e8051d68498e63029d7c34361d406bcd46815681d18da0e8952f0660ee027cca |
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