MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file exhibits malicious behavior through a large number of embedded links, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. One primary URL, https://ttraff.ru/pify?keyword=functions+of+cerebral+cortex+pdf, appears to be a redirector. The document body, though heavily obfuscated, contains references to this URL and numerous other PDF links hosted on domains like cdn.shopify.com and others, suggesting a link farm or distribution mechanism. The ML classifier also 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/pify?keyword=functions+of+cerebral+cortex+pdf
- http://files.vinnythetaper.org/uploads/1/3/0/7/130776575/nadidonodera_motatapa_fasovid_tikij.pdf
- http://files.dingobiodiversity.com/uploads/1/3/0/7/130776712/434414.pdf
- http://ladipaw.somethingsaturdays.com/uploads/1/3/1/4/131407424/9dcc7ce8a153.pdf
- https://cdn.shopify.com/s/files/1/0436/7020/8662/files/ropudawejupije.pdf
- https://cdn.shopify.com/s/files/1/0429/7929/5383/files/44505549805.pdf
- https://cdn.shopify.com/s/files/1/0431/7816/4387/files/54915270897.pdf
- https://cdn.shopify.com/s/files/1/0428/8095/8617/files/95065831157.pdf
- https://cdn.shopify.com/s/files/1/0434/6531/0374/files/42422354042.pdf
- https://cdn.shopify.com/s/files/1/0435/0004/4454/files/atal_pension_yojana_form_bank_of_maharashtra.pdf
- https://cdn.shopify.com/s/files/1/0431/0709/0581/files/76835209945.pdf
- https://cdn.shopify.com/s/files/1/0433/5026/1915/files/bipolar_disorder_case_study.pdf
- https://cdn.shopify.com/s/files/1/0428/1604/5222/files/zudapobaru.pdf
- https://cdn.shopify.com/s/files/1/0432/2210/6271/files/71049362330.pdf
- https://cdn.shopify.com/s/files/1/0427/4126/8647/files/wubaxibexidenofipirevo.pdf
- https://cdn.shopify.com/s/files/1/0431/3504/1685/files/52132027229.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_off00007b46.bin4a8cc1a73966258503412915cc5838db56e71f7961d134d6cba4458e03fde447 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B46 | 5312 bytes |
font_01_sfnt_off00008d6b.bin797add0bc1faf7b6de4286e3da8fabf330f85a6faa15e7c3a2946aca21d6ad8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D6B | 10052 bytes |
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