MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to 'ttraff.ru', which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to a malicious site. The PDF also contains a large number of links to other PDFs, indicating a link farm for SEO manipulation, likely to obscure the malicious redirector. The ML classifier strongly indicates maliciousness.
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=quantitative+aptitude+test+questions
- https://cdn.shopify.com/s/files/1/0438/3670/2870/files/javascript_string_to_float.pdf
- https://cdn.shopify.com/s/files/1/0461/3675/4329/files/51814081998.pdf
- https://cdn.shopify.com/s/files/1/0434/0993/2440/files/infinity_sign_tg.pdf
- https://cdn.shopify.com/s/files/1/0433/7047/9766/files/joxetemonevabupur.pdf
- https://static.usrfiles.com/ugd/bdeb4c_659af27b1536460bb45e85c96f7107ce.pdf
- https://static.usrfiles.com/ugd/b8c837_e4b04af9a61a4a1baa7d41cb89037e9f.pdf
- https://static.usrfiles.com/ugd/a64c8c_aed4fe89fcf648c7ab76c76755283e17.pdf
- https://static.usrfiles.com/ugd/b8c837_e912caf4da494d2f919252a83514dc81.pdf
- https://static.usrfiles.com/ugd/b8c837_22e15d914cc34657a0397e54a8e1e26e.pdf
- https://static.usrfiles.com/ugd/9e53d4_1e67e9aca3b24646a6797d768024256f.pdf
- https://static.usrfiles.com/ugd/b8c837_1df06a60e2a0448bb8c8dd8cb523d366.pdf
- https://static.usrfiles.com/ugd/b8c837_1736f348234e4d3ab48b7fa687084960.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/
- https://static.usrfiles.com/ugd/bdeb4c_659
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000872a.bin199270fab12d7cc6e4ff4a76e709d18972c8852484a9e8c088963fb6edde036d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x872A | 5072 bytes |
font_01_sfnt_off00009881.bine8d71230a3b10d6c0fca6e7515ce4ac79d45bebb4619709130c6fc0a1a055a41 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9881 | 14784 bytes |
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