MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by an ML classifier and contains numerous embedded links. One prominent URL, https://ttraff.ru/wix?keyword=fractured+but+whole+best+class+combos, is identified as a malicious redirector. The document also exhibits characteristics of a PDF link farm, with many links pointing to static.usrfiles.com, suggesting an attempt to manipulate search engine results or distribute malicious content through a large number of seemingly benign links.
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=fractured+but+whole+best+class+combos
- https://static.usrfiles.com/ugd/b8c837_2e3a30113151436e925358d05a45388e.pdf
- https://static.usrfiles.com/ugd/5ad03d_edb95da175924459939decdfebd75ee0.pdf
- https://static.usrfiles.com/ugd/277b62_741c420e732d4d42b5505e2c24bc2620.pdf
- https://static.usrfiles.com/ugd/61f964_9f6bf9a67fd34855bb4bf07b64514bc8.pdf
- https://static.usrfiles.com/ugd/2c8d66_dd1e02bee070475cb365653061452962.pdf
- https://static.usrfiles.com/ugd/04e6f9_2f5f69d9039448e1a208960588dd5841.pdf
- https://static.usrfiles.com/ugd/affaa6_8a6a0c859c35489394f76d44b510e7ab.pdf
- https://cdn.shopify.com/s/files/1/0436/7394/4217/files/advertising_media_planning_book.pdf
- https://cdn.shopify.com/s/files/1/0430/4715/7911/files/goxujuzepibutuwasepop.pdf
- https://cdn.shopify.com/s/files/1/0461/6408/2851/files/30417555417.pdf
- https://cdn.shopify.com/s/files/1/0438/3778/4224/files/gm_service_manual.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23063093424.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_off00008f31.bind37a4cfef5b406f4c238496717a8edfc5864cf8ad2d923b582a57c6e35ce6a05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F31 | 5368 bytes |
font_01_sfnt_off0000a156.bin72a8041eaf681b26c524550c2d68b8f9a2bf2ae979022de0d9c0c08d0c8f74fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA156 | 9896 bytes |
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