MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a service manual title, suggesting a lure. The presence of a large number of external PDF links, many pointing to static.usrfiles.com, indicates a link farm strategy. The ML classifier also strongly flagged this PDF as malicious.
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=bernina+virtuosa+150+service+manual
- https://static.usrfiles.com/ugd/0779a3_2627dfdaeb224e1bbab6c77e5a445f31.pdf
- https://static.usrfiles.com/ugd/33ab24_bace3dd589964fde96ecd4c293232705.pdf
- https://static.usrfiles.com/ugd/b6edda_2015db672acf47589a13a73ffc081bea.pdf
- https://static.usrfiles.com/ugd/cbdbb6_be6fea4ba1e34fbda3ffaeb224b9abd5.pdf
- https://static.usrfiles.com/ugd/eb4c03_f8c9645cf4664ad5bd0c314b30288a33.pdf
- https://static.usrfiles.com/ugd/cb2bed_ddcb62815b904a0ca9f9b68499c7d734.pdf
- https://static.usrfiles.com/ugd/b8c837_2c354ab937614221a690f8e5650ebb8a.pdf
- https://static.usrfiles.com/ugd/b8c837_bf40f4c26e664fb09c7741a6be1858b6.pdf
- https://static.usrfiles.com/ugd/ae059d_7f4ff1a879cd4ca79d826008b6a2dd53.pdf
- https://static.usrfiles.com/ugd/b8c837_c18c34ad10884e728dd5f90b0d3ff43b.pdf
- https://static.usrfiles.com/ugd/b8c837_503930efaa134338ab701eb24487daf0.pdf
- https://cdn.shopify.com/s/files/1/0440/0644/1125/files/prime_video_australia.pdf
- https://cdn.shopify.com/s/files/1/0434/9906/1408/files/active_and_passive_verbs_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0430/3064/2837/files/pebazomujedu.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_off00006643.binc7399425c151276ea25514686dd24b3f05ec1a0f7d5f258e74c1e42b5ca7ed26 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6643 | 5372 bytes |
font_01_sfnt_off0000787a.bin1b0821ded92b260ec5b1a05071ed2219ae18a20042639e88a46ca5533be80f2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x787A | 10680 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.