MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which point to a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is ttraff.ru, which is flagged as a redirector. The document body, though heavily obfuscated, contains references to academic work, likely a lure to disguise the malicious intent.
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=form%25C3%25A1tov%25C3%25A1n%25C3%25AD+bakal%25C3%25A1%25C5%2599sk%25C3%25A9+pr%25C3%25A1ce+uhk
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_1845900f8f6c4f749ea740a21fd36569.pdf
- https://static.usrfiles.com/ugd/83b1b3_9b32052a084e46c9a9de0aa31856d7ec.pdf
- https://static.usrfiles.com/ugd/b8c837_03eac66e30104d518342abf41c340fb7.pdf
- https://static.usrfiles.com/ugd/5fd5c1_b92567ed195a451289c79bf5cd88c6ac.pdf
- https://static.usrfiles.com/ugd/74e905_85d455a549b544ef933cedc78fdad303.pdf
- https://static.usrfiles.com/ugd/0779a3_2d94c6c5eae44ac9b7eee896d77092d8.pdf
- https://static.usrfiles.com/ugd/d01287_b20f3330af53455094e3d0d711f43d9d.pdf
- https://static.usrfiles.com/ugd/269bb8_70c3646f7fe24ed5be4cf442c42a3c2b.pdf
- https://static.usrfiles.com/ugd/3b7182_ea90ed4982344a86b3364435594c6cc0.pdf
- https://static.usrfiles.com/ugd/a6e5e9_6fc0a2b605ca46dead950e66a2943c7d.pdf
- https://static.usrfiles.com/ugd/dad90e_6e99ac9be00f4672a63846c12437b635.pdf
- https://static.usrfiles.com/ugd/eda9ba_041e6f9d7d344620b8477672e0457a47.pdf
- https://static.usrfiles.com/ugd/4117a9_cc084d7cf6f24b0eaed6809b9d760a87.pdf
- https://static.usrfiles.com/ugd/4c76bf_aeac75249e244cc4bd98d98cd0ccb345.pdf
- https://static.usrfiles.com/ugd/b8c837_11d7e0a432bf4fbebf5515a8cdde996c.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_off00009681.bind9a5559d5262955bb9332e26e545015c16828547eab25acbb643ebe6e84d0f6e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9681 | 5948 bytes |
font_01_sfnt_off0000a98b.bine668a4f46f729c701a9c7a3dcbc24527f30c8d50b0379113c1a1bd0ad7b2fab5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA98B | 13776 bytes |
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