MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=la+vie+en+rose+piano+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of numerous other PDF links, many pointing to 'static.usrfiles.com', suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, and the document body was heavily obfuscated, but the malicious redirector is a clear indicator of malicious intent.
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=la+vie+en+rose+piano+pdf
- https://static.usrfiles.com/ugd/0aab01_5da3432fa7d24148bceffa2204d13709.pdf
- https://static.usrfiles.com/ugd/7f16bd_9d72cc03143e4fcfabbf5976bd4940e4.pdf
- https://static.usrfiles.com/ugd/865d50_83655d59b92b4e7590f476c72bc18190.pdf
- https://static.usrfiles.com/ugd/ca32a8_2248362bc9f7448abcdab5b44a19e22b.pdf
- https://static.usrfiles.com/ugd/b8c837_636df3f81567434b8f96819371890238.pdf
- https://static.usrfiles.com/ugd/b8c837_ea145b9d95fa4104aaa97b7668ab9385.pdf
- https://static.usrfiles.com/ugd/1849a1_1e10a1a9ca3644bb8c8432a53d3f7888.pdf
- https://static.usrfiles.com/ugd/cb2bed_7feaa5efad4b41a3ad8371e090c90f02.pdf
- https://static.usrfiles.com/ugd/b8c837_7de91ee6400e4ae6a6f20299d784fb41.pdf
- https://static.usrfiles.com/ugd/451461_a6ff371f9535473b8ce4586e6edb0994.pdf
- https://static.usrfiles.com/ugd/eb4c03_f6c71451b8d44a51a4889dad24d87ff9.pdf
- https://static.usrfiles.com/ugd/b914b5_a4ce5e3944754e9ba05cc9b1b0dae78d.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_off0000425b.bin687f2ad1df54df12111982ec202e3172907c3a1065fcba6405967f6747ac802e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x425B | 5004 bytes |
font_01_sfnt_off00005376.bin803aef6573f4790f65b15efd8f8030fb60d93d4c5460e0b6b03beb9f7aa680de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5376 | 10448 bytes |
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