MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, disguised as a textbook download, redirects to a known malicious domain (ttraff.ru). This indicates a social engineering attack designed to lure users to malicious infrastructure, likely for further exploitation or credential harvesting.
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=introduction+to+aerospace+engineering+textbook+pdf
- http://files.clintonems.org/uploads/1/3/2/6/132695575/3883073.pdf
- http://files.laetitiamartinez.com/uploads/1/3/1/4/131437604/durililojutekag-nenekakukirane.pdf
- http://gomoxi.fikarisart.com/uploads/1/3/1/3/131379803/7336124.pdf
- https://cdn.shopify.com/s/files/1/0433/8732/2522/files/zixagigij.pdf
- https://cdn.shopify.com/s/files/1/0435/9543/2099/files/autocad_drawing_to_converter_online.pdf
- https://cdn.shopify.com/s/files/1/0427/7121/8588/files/wowupunuludupimufan.pdf
- https://cdn.shopify.com/s/files/1/0437/1313/4757/files/how_to_change_discord_tag.pdf
- https://cdn.shopify.com/s/files/1/0432/1817/4107/files/logatilujajelawam.pdf
- https://cdn.shopify.com/s/files/1/0434/2359/6693/files/dubipe.pdf
- https://cdn.shopify.com/s/files/1/0427/5834/0774/files/84355706213.pdf
- https://cdn.shopify.com/s/files/1/0427/8901/1612/files/87858260215.pdf
- https://cdn.shopify.com/s/files/1/0432/8954/2809/files/administracion_publica_en_espaa.pdf
- https://cdn.shopify.com/s/files/1/0434/0757/3157/files/39882437356.pdf
- https://cdn.shopify.com/s/files/1/0428/8951/1068/files/java_array_copy.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_off00006cb9.bin0e4cdf2c65b65130367ccdb92f54aaf82a5c88d6a874492910bc4a02e8ab4b06 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CB9 | 5500 bytes |
font_01_sfnt_off00007f7e.bin61cf60d067f0d56525a541e18fffeae2a1abd72222e00c2a7e4150fc02865b5d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F7E | 10080 bytes |
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