MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The ML classifier also strongly indicated maliciousness. The document body contains a URL that points to a redirector, which in turn likely leads to malicious content. The presence of numerous external links, many pointing to static.usrfiles.com, suggests a tactic to either distribute malware or engage in SEO manipulation for malicious purposes.
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.link/wix?keyword=beginner+blues+piano+pdf
- https://static.usrfiles.com/ugd/7baf93_4ef414635b8149c988af5c1b4a800f7f.pdf
- https://static.usrfiles.com/ugd/5fd5c1_3f7092318e594ccb9763a9523e0d206a.pdf
- https://static.usrfiles.com/ugd/b88e3d_7b0dff4c11ab4aafa0a2682a40bfb1c3.pdf
- https://cdn.shopify.com/s/files/1/0430/6799/8362/files/74538303574.pdf
- https://static.usrfiles.com/ugd/b914b5_e33d64b4bf4f4ac78fad3d18b67c23cf.pdf
- https://static.usrfiles.com/ugd/1b7c00_690e4b31dbd949d28ede3fba6a72566c.pdf
- https://static.usrfiles.com/ugd/b444d4_f7169687a7464476916c36680247dc39.pdf
- https://static.usrfiles.com/ugd/cf5aa9_7467c96da7754d2187dbcb5c0baa1ae3.pdf
- https://static.usrfiles.com/ugd/b8c837_b4105a9085274f2aa15636327422548c.pdf
- https://cdn.shopify.com/s/files/1/0449/2699/2551/files/72870997830.pdf
- https://cdn.shopify.com/s/files/1/0465/1719/0806/files/45474829310.pdf
- https://cdn.shopify.com/s/files/1/0432/6676/9051/files/3054240339.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006010.bin60806744745ccf4586967c009b940c5c408593e936153cacc3a24d256307dc4c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6010 | 5396 bytes |
font_01_sfnt_off0000726e.bine9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x726E | 1800 bytes |
font_02_sfnt_off00007afc.binbe0225506b7e7fac7ac5c4a37893f405f605b13d60858beb2ddb05498ba61b21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AFC | 10052 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.