MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/wix?keyword=la+casa+del+perfume, which is also listed as a malicious redirector. The presence of numerous other PDF links, many hosted on static.usrfiles.com, suggests a link farm or redirection strategy to obscure the final destination.
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+casa+del+perfume
- https://static.usrfiles.com/ugd/b8c837_a8de1a510741490685f51a983956bd75.pdf
- https://static.usrfiles.com/ugd/b8c837_55e7767d0cdd483a97363b0b4daa3e13.pdf
- https://static.usrfiles.com/ugd/d94ae5_f7ea3b8effb344d085cc8ca43421c08f.pdf
- https://static.usrfiles.com/ugd/d162e3_e2a4cc83662647b982c51bf2b70a353a.pdf
- https://cdn.shopify.com/s/files/1/0435/3458/1911/files/fezig.pdf
- https://cdn.shopify.com/s/files/1/0454/7146/5624/files/ritamuwonamirex.pdf
- https://cdn.shopify.com/s/files/1/0463/2487/5419/files/flight_of_the_bumblebee_cello.pdf
- https://cdn.shopify.com/s/files/1/0436/5775/6825/files/puzagojabuwavi.pdf
- https://cdn.shopify.com/s/files/1/0430/0334/7098/files/lyric_route_66.pdf
- https://static.usrfiles.com/ugd/b8c837_5b0760ebcf8242cf9a594d4b66f2709a.pdf
- https://static.usrfiles.com/ugd/097bd5_18a0681448904058b753dd758f986c6d.pdf
- https://static.usrfiles.com/ugd/b8c837_21b9ebe27ef7402f87e0d0f199e9f391.pdf
- https://static.usrfiles.com/ugd/405339_3a9e3fb792e94ae98b0b86703be980ec.pdf
- https://cdn.shopify.com/s/files/1/0436/9180/2777/files/duxirefufatujo.pdf
- https://cdn.shopify.com/s/files/1/0435/6777/5905/files/xuvegozas.pdf
- https://cdn.shopify.com/s/files/1/0427/5752/1574/files/871506377.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_off00005344.bina4e474a30315328f732aa7728eadd88b7c75c5c2f514cda6ba91602772579a96 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5344 | 5240 bytes |
font_01_sfnt_off000064fc.bin833cae48b4ee58efbae41f4cc576d430cb6e8914c985493e85cd132b9db1e512 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64FC | 10992 bytes |
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