MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically identifies a link to traff.ru, which is known malicious redirector infrastructure. The ML classifier also strongly indicates maliciousness. The document body contains garbled text but includes the primary malicious URL.
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=ut+austin+debate+camp
- https://static.usrfiles.com/ugd/b8c837_a7e8c56585f840e6b619c65076370ccf.pdf
- https://static.usrfiles.com/ugd/3aee12_9f458e4d776e46138e8cd61f023d9028.pdf
- https://static.usrfiles.com/ugd/89363e_30d27f25b4cf4f3093291a52be97d2ba.pdf
- https://static.usrfiles.com/ugd/b8c837_efc3a2a58ac94b36bb8b3bdd4e5be681.pdf
- https://cdn.shopify.com/s/files/1/0430/9224/6685/files/98857373803.pdf
- https://cdn.shopify.com/s/files/1/0429/8607/8369/files/68559663027.pdf
- https://cdn.shopify.com/s/files/1/0439/2511/0952/files/android_developer_tutorial.pdf
- https://cdn.shopify.com/s/files/1/0431/0820/4704/files/dawuwujevopevuvusibo.pdf
- https://cdn.shopify.com/s/files/1/0434/3313/2184/files/96762160959.pdf
- https://cdn.shopify.com/s/files/1/0428/2603/9463/files/buwodadogorisugaxomedu.pdf
- https://cdn.shopify.com/s/files/1/0430/1514/3587/files/fexuro.pdf
- https://cdn.shopify.com/s/files/1/0448/5169/1680/files/snoop_dogg_albums_ranked.pdf
- https://cdn.shopify.com/s/files/1/0431/6630/2376/files/nisatotomeboloso.pdf
- https://cdn.shopify.com/s/files/1/0465/1882/9206/files/jilonugejap.pdf
- https://cdn.shopify.com/s/files/1/0429/2699/7663/files/dixatunofebus.pdf
- https://cdn.shopify.com/s/files/1/0438/6449/0149/files/57312517828.pdf
- https://cdn.shopify.com/s/files/1/0431/5106/5243/files/32624584711.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_off000073f2.bin2259ea54f7e1b748e5049e19d25a1f66c0a8270b9c0fb834d0441578f806ebe6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73F2 | 5220 bytes |
font_01_sfnt_off0000858e.bin7bb2bb26f619fd5d6f0295e634e57cc1a463d35fc9988514cfe86f8761b1ce1a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x858E | 10264 bytes |
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