MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many pointing to external PDF files hosted on static.usrfiles.com. This structure is indicative of a link farm, likely used for SEO manipulation or to host malicious content. The primary malicious URL identified is https://ttraff.ru/wix?keyword=el+gusto+y+su+funcion, which is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
-
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.
-
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.
-
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.
-
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=el+gusto+y+su+funcion
- https://static.usrfiles.com/ugd/8de238_b068109f282a4be7b26757553e66d6ba.pdf
- https://static.usrfiles.com/ugd/b8c837_bd2509dd60c8478d80cab159c50a1e43.pdf
- https://static.usrfiles.com/ugd/b8c837_1ee47d256e764390bb80a568278c3939.pdf
- https://static.usrfiles.com/ugd/3f80ec_58ed854ef2d343e5ba053b0e695eea35.pdf
- https://static.usrfiles.com/ugd/704566_8e7ea9d35b9c44fb9aa0acdb6da005e7.pdf
- https://static.usrfiles.com/ugd/b8c837_950486a450b343529280ce17b1cf9dfd.pdf
- https://static.usrfiles.com/ugd/e2f7e1_a0e9dde3d6004ae487768afec524f4a0.pdf
- https://static.usrfiles.com/ugd/07ef24_576649b977f04b12a0a86b0bbedc3bb7.pdf
- https://cdn.shopify.com/s/files/1/0434/7471/4790/files/riwuzoxuruwubipaxitevun.pdf
- https://cdn.shopify.com/s/files/1/0431/5335/8999/files/fuzafa.pdf
- https://cdn.shopify.com/s/files/1/0432/1017/8717/files/kozubuj.pdf
- https://cdn.shopify.com/s/files/1/0428/0510/0707/files/53754075252.pdf
- https://cdn.shopify.com/s/files/1/0428/7214/4038/files/riranoviregowidazo.pdf
- https://cdn.shopify.com/s/files/1/0431/7341/3032/files/44326315873.pdf
- https://cdn.shopify.com/s/files/1/0433/7152/8344/files/budesonida_formoterol_spray.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_off00007faf.bin0dd6cfdf0e1781ae4dfa83f45190491e497d6afa42829448cd0bc7ca8df49141 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FAF | 4804 bytes |
font_01_sfnt_off00009032.bin75925ba5ba519cc20f12b925688a9c0753528fdb0a050c093f9661e4d93bced9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9032 | 11552 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.