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 pointing to external PDF documents, which is indicative of a link farm. One of the primary links directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to '2019 fantasy football cheat sheet' and a URL that aligns with the malicious redirector, suggesting a lure to attract users. 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.com/pify?keyword=2019+fantasy+football+cheat+sheet+nfl.+com
- https://static.usrfiles.com/ugd/3f80ec_0f715daa5ad240fb8c9ac373065f5bd1.pdf
- https://static.usrfiles.com/ugd/0cd019_b964cc633e6a49c1a495a78f09bb872b.pdf
- https://static.usrfiles.com/ugd/158fb9_cf2b389cf0314c4fa198f24793d91449.pdf
- https://static.usrfiles.com/ugd/2486b5_ccc385e284d14c4ab27b6b5b6a243998.pdf
- https://static.usrfiles.com/ugd/f09a9d_102187b1b1094ce087b57b63a5d0cb79.pdf
- https://static.usrfiles.com/ugd/87a178_561cfce4b0d942b7b2d2650944ac9015.pdf
- https://static.usrfiles.com/ugd/b28561_e98eb09d52dc492b99ec0b992e68db5e.pdf
- https://static.usrfiles.com/ugd/0dcf4b_4939d3fe85b44b8cb9767cce99b6342a.pdf
- https://static.usrfiles.com/ugd/a382ee_14d5029f1597435881f9ca5d005abc84.pdf
- https://static.usrfiles.com/ugd/8b9728_fdd76c066c4640689c1e50c6afbe504e.pdf
- https://cdn.shopify.com/s/files/1/0432/5448/1058/files/nenipatovupo.pdf
- https://cdn.shopify.com/s/files/1/0432/7571/4715/files/55442366993.pdf
- https://cdn.shopify.com/s/files/1/0433/9616/9886/files/rafigawemuzi.pdf
- https://cdn.shopify.com/s/files/1/0430/7379/8306/files/nejesulo.pdf
- https://cdn.shopify.com/s/files/1/0432/3131/4077/files/73980719892.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_off00006c1e.bin47100371a4d8491dea605b6dce99146fa9b9d8d49713fc616259e67ffc40e047 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C1E | 5684 bytes |
font_01_sfnt_off00007f5f.bin4e70f820c49f4b410af7ffe752244ced6ecd29846738681da5f21dfd4b88ce47 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F5F | 9968 bytes |
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