MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains the malicious URL and a large number of other URLs, suggesting a link farm or redirection attempt. The ML classifier also strongly indicated 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.cc/wix?keyword=books+activities+esl
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/2f3ac6_095b76d1135e44feb6a16d7f04c70b66.pdf
- https://static.usrfiles.com/ugd/b8c837_be7fa280f0f7406d832ece9bff050d7e.pdf
- https://static.usrfiles.com/ugd/b8c837_b8649b4894614051aeb2fadee47746f0.pdf
- https://cdn.shopify.com/s/files/1/0429/2925/8649/files/binomial_distribution_chart.pdf
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/81420300150.pdf
- https://cdn.shopify.com/s/files/1/0450/4708/7262/files/livre_bienvenue_en_france.pdf
- https://cdn.shopify.com/s/files/1/0433/8620/8406/files/xitavudugan.pdf
- https://cdn.shopify.com/s/files/1/0431/8330/8962/files/american_heart_association_guidelines_for_dyslipidemia.pdf
- https://static.usrfiles.com/ugd/0c268c_1885bf3a2b5d48aea72cb31fa4242615.pdf
- https://static.usrfiles.com/ugd/b8c837_66c63703024c45c3942bc6ac7713b1aa.pdf
- https://static.usrfiles.com/ugd/b8c837_39b5926b6d2743f98b7495f268de3080.pdf
- https://static.usrfiles.com/ugd/6cf392_52cc7e24537e449e951726ddada164ad.pdf
- https://static.usrfiles.com/ugd/b8c837_e1170fe5bb9b42beaf18c4ff951fc045.pdf
- https://static.usrfiles.com/ugd/b8c837_9205e142f72a4937a5e236e07320cc8b.pdf
- https://static.usrfiles.com/ugd/0779a3_243e4887addc493884d08db652134f8c.pdf
- https://static.usrfiles.com/ugd/54fa57_5bd04be41fbd4702a4e697b30865ccb3.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_off00007c8a.bin09d2b124f279cdc1bc750170385c0339106ed8de80283919fcfdb55c8693ab53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C8A | 4872 bytes |
font_01_sfnt_off00008d35.bin2f092ec9c6f9851223eae0a32221c0a4db4648119b2311660ea9c0776b609ba0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D35 | 10704 bytes |
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