MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a download for 'Cisco anyconnect vpn mac free'. The document also features a large number of links to external PDFs hosted on static.usrfiles.com, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to malicious infrastructure.
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.ru/wix?keyword=cisco+anyconnect+vpn+mac++free
- https://static.usrfiles.com/ugd/b8c837_9586012e658f4a18b04395e18214053e.pdf
- https://static.usrfiles.com/ugd/b8c837_054f7823701d4e72b3a7a00e0b0ad30f.pdf
- https://static.usrfiles.com/ugd/b8c837_381b546bdefd495399c4dd11be544532.pdf
- https://static.usrfiles.com/ugd/b8c837_51a779df1f9348c3967d9a86dfea61fc.pdf
- https://static.usrfiles.com/ugd/b8c837_2a61fc3bb1214983a4047278be7b03db.pdf
- https://static.usrfiles.com/ugd/b8c837_ad319baeaa3f4a14b46fe1e02621a7ea.pdf
- https://static.usrfiles.com/ugd/b8c837_2b1bded44bc649df9930a58778dcf501.pdf
- https://static.usrfiles.com/ugd/b8c837_e583852ca8544ac5888c86b26d712f5c.pdf
- https://static.usrfiles.com/ugd/b8c837_487fc394f08a44459ad4c0592f0a8814.pdf
- https://static.usrfiles.com/ugd/b8c837_bb182faf500d43258938161b721e2c6e.pdf
- https://static.usrfiles.com/ugd/b8c837_c7dff08cdc934edf9583b34df90f6ec4.pdf
- https://cdn.shopify.com/s/files/1/0428/5677/5839/files/22948635658.pdf
- https://cdn.shopify.com/s/files/1/0436/4327/3369/files/9683720870.pdf
- https://cdn.shopify.com/s/files/1/0433/9879/1329/files/buremunoj.pdf
- https://cdn.shopify.com/s/files/1/0429/6769/5511/files/43640932613.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_off00006edb.binc6126f3edcc01984e32ce8ef62ed1c6120961ee0b5e23af8580c860d1863ce2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EDB | 5196 bytes |
font_01_sfnt_off00008080.bin30059c1c903ae212d645348580d4ad3f350067d57d1dfb872ba18693737f63e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8080 | 10760 bytes |
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