MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by a machine learning classifier as malicious. It contains a critical heuristic indicating it links to known malicious redirector infrastructure, specifically 'https://ttraff.com/wix?keyword=webex+turn+off+video+camera'. Additionally, it features a large number of embedded links to 'static.usrfiles.com', suggesting a link farm designed to distribute malicious content or phish users. The document body itself is heavily obfuscated and contains the 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.com/wix?keyword=webex+turn+off+video+camera
- https://static.usrfiles.com/ugd/b8c837_5ebbf8250bd9413c8ee89fee0159f020.pdf
- https://static.usrfiles.com/ugd/b8c837_9a3ef07e97904202a80aa852f99cc785.pdf
- https://static.usrfiles.com/ugd/b8c837_bab8d139f16d40d2aa89387052243d87.pdf
- https://static.usrfiles.com/ugd/9ea9b6_7047faee26d44d0e91365219168c5ae3.pdf
- https://static.usrfiles.com/ugd/0f5b72_c403ddef9961414fbb23e8a9bd7b8187.pdf
- https://static.usrfiles.com/ugd/e4bc37_0da8a5d512564920979826f26d79c036.pdf
- https://static.usrfiles.com/ugd/5ed537_07ae6340909c4cfab9939fab9c6a6ca1.pdf
- https://static.usrfiles.com/ugd/affaa6_2594bd5c7c9a4144849ffe9c0e1d0503.pdf
- https://static.usrfiles.com/ugd/4b7290_9c3b1f52d1514c629bb841ba401d51d4.pdf
- https://static.usrfiles.com/ugd/49be48_19b8eb67bbbd4ba3898d13fce3b208d8.pdf
- https://static.usrfiles.com/ugd/b8c837_bf567948d778449dadfef72b0fab2175.pdf
- https://static.usrfiles.com/ugd/ad2ade_901a1f98419843b1aafd3e5e9b43d2d7.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_off00004ba4.bind4ebfa2aa22c251e053969bc76f7616f794b421ffbe9bc6aee58e24c2c96ef3a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4BA4 | 5236 bytes |
font_01_sfnt_off00005d70.binccaadec10dd881047af2318ffffe90be2f8cad885649860d1b93bc4ae91afd57 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D70 | 13024 bytes |
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