MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on 'static.usrfiles.com', indicating a link farm strategy. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves luring the user to a malicious site via the embedded link.
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=johan+cruijff+arena+self+guided+tour
- https://static.usrfiles.com/ugd/9ea91e_c4eab2c5b3a44b3ba4910056ee1a33e8.pdf
- https://static.usrfiles.com/ugd/2e16aa_f332c95c68ac4ab2beb470004d7f91b6.pdf
- https://static.usrfiles.com/ugd/99965f_f65d58df47df4a18a6e1f55d38bca523.pdf
- https://static.usrfiles.com/ugd/daca0d_8fc5ee2c150a4acdbc627cb30447c711.pdf
- https://static.usrfiles.com/ugd/b8c837_41739e46bade405d8169c1762424a5e1.pdf
- https://static.usrfiles.com/ugd/b8c837_d8405a7a87514521a8b6e3a1fa891439.pdf
- https://static.usrfiles.com/ugd/77941b_d9d4fa914aa645eaa50a95d0d9b29146.pdf
- https://static.usrfiles.com/ugd/b8c837_d06114fd55c34a168a23eb77a0e2652f.pdf
- https://cdn.shopify.com/s/files/1/0435/3907/1144/files/rizofamexega.pdf
- https://cdn.shopify.com/s/files/1/0436/9684/9051/files/71802474803.pdf
- https://cdn.shopify.com/s/files/1/0445/8446/8644/files/learn_python_for_beginners_download.pdf
- https://cdn.shopify.com/s/files/1/0429/9459/8047/files/31041317159.pdf
- https://cdn.shopify.com/s/files/1/0431/8468/5220/files/bisaxodorumojopikakufabi.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_off000061d1.bindcd99cd8b3e55e1eab57e8ff9f264cf9202f3f694196a6d71d8679fde65ae16c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61D1 | 5348 bytes |
font_01_sfnt_off000073fd.binb09085fff869b8eebe8454ccc9055962923d5982dbc0d5653a75752bcb3ef5a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73FD | 10288 bytes |
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