MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a malicious redirector link disguised as a 'Kubota b2320 parts manual'. This link, 'https://ttraff.ru/wix?keyword=kubota+b2320+parts+manual', is identified as a critical threat. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDFs, likely for SEO manipulation to increase visibility. The ML classifier strongly supports the malicious nature of this PDF.
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=kubota+b2320+parts+manual
- https://cdn.shopify.com/s/files/1/0432/9085/3531/files/19828868487.pdf
- https://cdn.shopify.com/s/files/1/0440/4084/7510/files/clek_foonf_guide.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3750/files/analytical_method_validation_acceptance_criteria.pdf
- https://static.usrfiles.com/ugd/5fd5c1_3e1962a8183b4810bdda6cde407fc694.pdf
- https://static.usrfiles.com/ugd/b8c837_bb27de6cef0b4598afe0d75b800c6143.pdf
- https://cdn.shopify.com/s/files/1/0438/8293/8520/files/ijazat_movie_songs_ming.pdf
- https://cdn.shopify.com/s/files/1/0432/2381/0211/files/93345159740.pdf
- https://cdn.shopify.com/s/files/1/0431/1144/8729/files/9051665124.pdf
- https://cdn.shopify.com/s/files/1/0427/7351/2359/files/21534496753.pdf
- https://cdn.shopify.com/s/files/1/0471/0619/5606/files/43978912978.pdf
- https://cdn.shopify.com/s/files/1/0437/6225/3978/files/wiwepomikuwubuxebad.pdf
- https://cdn.shopify.com/s/files/1/0433/0668/0484/files/beauty_and_the_beast_2020.pdf
- https://cdn.shopify.com/s/files/1/0431/5843/8039/files/18933837088.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_off00005b7e.binfde5b6e1117fb9ee29d8c5523d65c3717ea8ce650c4054a239780e24827f1dc2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B7E | 5512 bytes |
font_01_sfnt_off00006e17.binb0ed3dd1f62f203d951835b30d70e8b4aeacce2f2c92250625698cfcc15bdcb1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E17 | 10500 bytes |
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