MALICIOUS
152
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, specifically pointing to 'https://ttraff.ru/wix?keyword=stomper+cd+labels+template+download'. This URL is presented within the document body, suggesting a lure to download content. The presence of numerous other links, many pointing to 'static.usrfiles.com', indicates a link farm strategy, likely to obscure the malicious destination. 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.ru/wix?keyword=stomper+cd+labels+template+download
- https://static.usrfiles.com/ugd/9219f8_6aebff9dec9141b3849c1c63f66ee3bf.pdf
- https://static.usrfiles.com/ugd/b8c837_95984a5f735046ce9fcdf2916bf839b3.pdf
- https://static.usrfiles.com/ugd/b8c837_1c732696afd849b3b6a42663602a4478.pdf
- https://static.usrfiles.com/ugd/b8c837_563ce3767da741cea3b73fcca27d45d3.pdf
- https://cdn.shopify.com/s/files/1/0429/3158/5180/files/81555899780.pdf
- https://cdn.shopify.com/s/files/1/0431/1616/7328/files/central_and_south_america_map.pdf
- https://cdn.shopify.com/s/files/1/0432/3534/4539/files/jaxeso.pdf
- https://static.usrfiles.com/ugd/b8c837_6ad2c6d186d241708bee8ee9f35fc233.pdf
- https://static.usrfiles.com/ugd/b8c837_244c20871d254709ae39f38d64059956.pdf
- https://static.usrfiles.com/ugd/b8c837_9b6be9d1737c4c5db67bd7a8dc720410.pdf
- https://static.usrfiles.com/ugd/61b8bf_bff318dc8bde4039922c25a209fd2134.pdf
- https://static.usrfiles.com/ugd/10b11f_a77649d2f59d4a39a6c3c07dbdb4d67f.pdf
- https://static.usrfiles.com/ugd/b8c837_6488a0cfe728435b831603c2fb947484.pdf
- https://static.usrfiles.com/ugd/cb2bed_d8d6399c0de94d7c8bccdaa1ee6be0b1.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_off000067a9.bin77f3b14eead108a67eff251319c045f3c89297aa66eda51e5e63949f36abf6a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67A9 | 5556 bytes |
font_01_sfnt_off00007a71.bin76c357560e20143c7adee4deb0249eaae07a5fb8d4555e654ef3fc7cff7f5053 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A71 | 14720 bytes |
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