MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL and references to sheet music, suggesting a lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF documents, likely for SEO poisoning or to host further malicious content. The ML classifier strongly indicates 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=turkish+march+sheet+music+beethoven
- https://static.usrfiles.com/ugd/902d29_01c87a77cfb946cfb50c7ecc9c319097.pdf
- https://static.usrfiles.com/ugd/ce0e6d_3cee01f1cc1249c6953b22e54b3e3bdf.pdf
- https://static.usrfiles.com/ugd/99a8f2_0207ebc27cd34aa1a1283e22a4692883.pdf
- https://static.usrfiles.com/ugd/b8c837_d43729fe8a844fb998c967e8a585d748.pdf
- https://static.usrfiles.com/ugd/c3548c_780f2a81acc74d9996165088ed21faf0.pdf
- https://cdn.shopify.com/s/files/1/0429/2696/4903/files/20262094914.pdf
- https://cdn.shopify.com/s/files/1/0431/0378/1015/files/wamuvaxuxax.pdf
- https://cdn.shopify.com/s/files/1/0434/4119/3110/files/88415784683.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1317992411.pdf
- https://cdn.shopify.com/s/files/1/0432/3573/7755/files/16480672363.pdf
- https://cdn.shopify.com/s/files/1/0465/1584/7326/files/bibliography_mla_format_word.pdf
- https://cdn.shopify.com/s/files/1/0430/6678/5949/files/zevukagosozufidodoj.pdf
- https://static.usrfiles.com/ugd/696b8a_5ffec19e353742da81f013e1ccc6f7de.pdf
- https://static.usrfiles.com/ugd/565485_48008b76cfb849e0a0ae2d11bd003c99.pdf
- https://static.usrfiles.com/ugd/a4d998_688c200608e0403493b8ed134ae0cf5e.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_off00006157.binfbb5e6827f60a55f9b8165c37da9d8e311a8ac5b98b24dd244d783d8eed2286b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6157 | 5220 bytes |
font_01_sfnt_off000072ef.bina5b9ce10d846808a1f8bfd6ac0ab17ecd4e58353c162c6364c8a8c766326c73d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72EF | 15432 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.