MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/wix?keyword=kitchen+planning+guidelines+codes+standards'. The document body, though heavily obfuscated, contains this same URL, suggesting it is the primary lure. The presence of a large number of external PDF links, many hosted on 'static.usrfiles.com', further supports the link farm classification. 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=kitchen+planning+guidelines+codes+standards
- https://static.usrfiles.com/ugd/3d0627_c3ee2ad56ec44b2ba6706900ace8eb80.pdf
- https://static.usrfiles.com/ugd/b8c837_bd1a8274c51f454a8fef573f351975b6.pdf
- https://static.usrfiles.com/ugd/b8c837_818fe1d25b1149c4bd0ae8845076063f.pdf
- https://static.usrfiles.com/ugd/99965f_2b941b8d9f6d4d5c958790fb89086fd9.pdf
- https://static.usrfiles.com/ugd/48d9a1_ea4f2392935046b6af522da5528b062b.pdf
- https://static.usrfiles.com/ugd/b8c837_7e02755ea7f64cb2ba3cd4a7f15fa134.pdf
- https://static.usrfiles.com/ugd/b8c837_e41db60785a940b79d36a42069d4c010.pdf
- https://static.usrfiles.com/ugd/d9d1f5_51fb6c210a6145449251ada8f0607e87.pdf
- https://static.usrfiles.com/ugd/12f4eb_83f04254f3b34738a023cc1c140428e0.pdf
- https://static.usrfiles.com/ugd/a91264_a22478c0b15340d6bf954382695cb0db.pdf
- https://static.usrfiles.com/ugd/b8c837_2022151995844827939005307418c717.pdf
- https://static.usrfiles.com/ugd/b8c837_9fc565d8a5fe4862abe0ccba70beb78f.pdf
- https://static.usrfiles.com/ugd/963627_de351ddfe8c34152b1279606de35d661.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_off00006d0f.bind4025bcb8f2b1a978fcd53a22f063d3d62e6b018f931a68f4ae162e5a701dbe3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D0F | 5304 bytes |
font_01_sfnt_off00007f17.bin8f0c11ac6512091b3af3f0cc0cfc05910a0bda198da78add02ae4762d513ec12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F17 | 10200 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.