MALICIOUS
152
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 SEO-optimized PDF files hosted on Shopify. One of these links, however, directs to a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to lure users to malicious infrastructure. The ML classifier also strongly indicated 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.club/wix?keyword=list+of+dungeons+and+dragons+3.5+books
- https://cdn.shopify.com/s/files/1/0429/5639/0551/files/mixed_number_fraction_worksheets_3rd_grade.pdf
- https://cdn.shopify.com/s/files/1/0429/6661/4175/files/calculus_sem_1_book.pdf
- https://cdn.shopify.com/s/files/1/0428/5405/6095/files/vanunamafulug.pdf
- https://cdn.shopify.com/s/files/1/0428/4160/4263/files/54488025545.pdf
- https://cdn.shopify.com/s/files/1/0437/4495/2471/files/da_form_2823_fillable.pdf
- https://cdn.shopify.com/s/files/1/0459/6059/3567/files/54026651620.pdf
- https://cdn.shopify.com/s/files/1/0437/2421/0326/files/bitstream_vera_serif_font_free.pdf
- https://static.usrfiles.com/ugd/b8c837_7c260c57c9c54c50a60ec3f7617d18dc.pdf
- https://static.usrfiles.com/ugd/b8c837_5e91c8ffad224240b9b6ae6b2fc36491.pdf
- https://static.usrfiles.com/ugd/b8c837_f2f8ee6dcc2042408a592ecaf12b1995.pdf
- https://static.usrfiles.com/ugd/8cbfce_e8a9c2ebf464477889508c42064d729d.pdf
- https://cdn.shopify.com/s/files/1/0428/5143/4659/files/27138220849.pdf
- https://cdn.shopify.com/s/files/1/0434/0357/5447/files/98599574570.pdf
- https://cdn.shopify.com/s/files/1/0429/7034/9731/files/lafepipatemos.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_off0000644e.bin27c404df3bd65977a85d96c5667c36f3afd1d507e9409bc7e11f56883e27fb01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x644E | 5508 bytes |
font_01_sfnt_off0000771f.binfec5193dc652b6d27eff648c4c162080af5d3283110e3089be2b02bad364483e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x771F | 10220 bytes |
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