MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains this URL and also references a large number of other PDFs hosted on static.usrfiles.com, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious.
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=routing+and+switching+essentials+com
- https://static.usrfiles.com/ugd/e2f7e1_c5621d29ae6145379799abda068cb865.pdf
- https://static.usrfiles.com/ugd/79e0dc_da1e174478ff4a4ea86478846c46242b.pdf
- https://static.usrfiles.com/ugd/b5472a_1eacf8ecb13e46f19a200706e95cfcbb.pdf
- https://static.usrfiles.com/ugd/de3d83_d8f354ca878d439ba86691d3b2b48962.pdf
- https://static.usrfiles.com/ugd/d775a9_df88680c024b496faf599e1f7bcb29c1.pdf
- https://static.usrfiles.com/ugd/9ff9b8_0d63dd8a40e3480da3e1060915b20cee.pdf
- https://static.usrfiles.com/ugd/b8c837_4f02072d5c3d403f93d38896f2eba95e.pdf
- https://static.usrfiles.com/ugd/e4ff69_5b61d2cbd29f4a2e8c40097ff02b1b83.pdf
- https://static.usrfiles.com/ugd/238140_85dd663de75646ef92aaefb84e8e7f88.pdf
- https://static.usrfiles.com/ugd/a838c0_bfd72a9d0417476c8cec13f1606cee01.pdf
- https://static.usrfiles.com/ugd/3de8a6_245a943420f8482e8259e13ab9fd51f3.pdf
- https://cdn.shopify.com/s/files/1/0434/6137/8212/files/dufasibiwuvobobi.pdf
- https://cdn.shopify.com/s/files/1/0462/0088/1302/files/travel_briefing_document_template.pdf
- https://cdn.shopify.com/s/files/1/0436/0683/5358/files/physical_science_grade_11_deped.pdf
- https://cdn.shopify.com/s/files/1/0429/9508/9559/files/buxidewizuberigeb.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_off0000579a.bina2787b4492840000dcc63ed55c12c112db49f5762420ef44d098625ecfd03eab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x579A | 5356 bytes |
font_01_sfnt_off000069c3.bin7c08017ea5dcacfc6dc8dfb8302c5033ffa2ef6c4b3c7033ba07d49aaea2c00e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69C3 | 10300 bytes |
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