MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm designed to redirect users. The primary redirector URL is https://ttraff.cc/wix, which is flagged as malicious. The document body, though heavily obfuscated, contains this malicious URL and several other benign-looking URLs hosted on Shopify and static.usrfiles.com, likely as part of the link farm strategy. The ML classifier strongly indicates maliciousness.
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.cc/wix?keyword=introduction+to+polymers+third+edition+pdf
- https://cdn.shopify.com/s/files/1/0440/4841/6933/files/21075114228.pdf
- https://cdn.shopify.com/s/files/1/0439/2619/2283/files/math_worksheets_grade_2_shapes.pdf
- https://cdn.shopify.com/s/files/1/0431/3333/7768/files/xadozemeratozuvamux.pdf
- https://cdn.shopify.com/s/files/1/0460/3143/7983/files/xarobuturobiwe.pdf
- https://static.usrfiles.com/ugd/ba3095_76abff16e6744cca8ee07564a3c4bb4c.pdf
- https://static.usrfiles.com/ugd/b8c837_f3688d69465f4086acd3acd9e7f4a155.pdf
- https://static.usrfiles.com/ugd/b8c837_b2dc94cbac1740c5a09c1362aa8ed58d.pdf
- https://static.usrfiles.com/ugd/b8c837_bed65fcd91c445d79940ca66078fefe7.pdf
- https://static.usrfiles.com/ugd/b8c837_c90be221867b471ab1ce3eec6149f1c0.pdf
- https://static.usrfiles.com/ugd/b8c837_3a157940a3f544febec2083513d0072b.pdf
- https://static.usrfiles.com/ugd/b8c837_dd3e25d7631a44d99af8c9a5ed94781c.pdf
- https://static.usrfiles.com/ugd/b8c837_7e14e11f8f12494caa97b635a78dc641.pdf
- https://static.usrfiles.com/ugd/b8c837_a9c5e2d08c574af38a1e288aa41168c6.pdf
- https://static.usrfiles.com/ugd/b8c837_7a97b535424944388ee9c23b16124b08.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_off00006111.bincbf61e0d47d8233b5cd888970812ecaa1ba214323a2c208652181f5d9658fea5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6111 | 5224 bytes |
font_01_sfnt_off000072b4.bin5dac1f6df979241343876fc792a38f09471258e4277545fa459ecb108700bd16 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72B4 | 10268 bytes |
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