MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains numerous embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure at https://ttraff.ru/wix?keyword=quick+user+guide+template. The document body, though heavily obfuscated, also contains this URL and a large number of other PDF links, suggesting a link farm or SEO poisoning attempt. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.
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=quick+user+guide+template
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_6bce75eab4a74046a3de81a9a599826a.pdf
- https://static.usrfiles.com/ugd/b916f4_5d3ecd084d054d30b54dbdebecaf0399.pdf
- https://static.usrfiles.com/ugd/b8c837_912569e4c4bb43e8b098a71aeca5d8d9.pdf
- https://cdn.shopify.com/s/files/1/0428/4727/3116/files/4396334008.pdf
- https://cdn.shopify.com/s/files/1/0440/5762/4726/files/corvette_automatic_or_manual_transmission.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nagexonulelaxefirulilona.pdf
- https://static.usrfiles.com/ugd/b8c837_e85dd171fe154ea7a1a64fa96965ea2d.pdf
- https://static.usrfiles.com/ugd/e1d12c_aad8f4099afe44c39d5d4967c2e9ccbd.pdf
- https://static.usrfiles.com/ugd/b8c837_5bdf47db0d9e40fb8e1f3dfd7efc3884.pdf
- https://static.usrfiles.com/ugd/b13fd1_e8a843d5a00b44cc915b94c3deb355b8.pdf
- https://cdn.shopify.com/s/files/1/0429/1097/4108/files/75598151250.pdf
- https://cdn.shopify.com/s/files/1/0434/5665/9621/files/bokifenuloxofubo.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007011.bin5c2e928fa6f06cf78e3c58930d040e80a576794d838957ef36e7ec24bc9d20ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7011 | 5520 bytes |
font_01_sfnt_off000082be.bin88fc94b6cd56051e463a601a313ba2c34c0f319ad7089e62612443191bb72caf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82BE | 10812 bytes |
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