MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious due to the presence of a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that leads to this redirector. The file also contains a large number of embedded links, many pointing to static.usrfiles.com, which is identified as a link farm. The primary malicious indicator is the redirector URL, suggesting a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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.
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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.
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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.
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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.club/wix?keyword=cork+sheet+cutting+machine
- https://static.usrfiles.com/ugd/7ad284_ebe547a8eaeb4102b588e1780117887c.pdf
- https://static.usrfiles.com/ugd/b8c837_a33d3cda790a4d43ba951291a5ab1ebf.pdf
- https://static.usrfiles.com/ugd/98e2de_78077d9c47094d0f9b24de0f9d7548ca.pdf
- https://cdn.shopify.com/s/files/1/0430/7773/0464/files/malayalam_kambikuttan_download.pdf
- https://cdn.shopify.com/s/files/1/0449/8640/0936/files/lelosusibugivox.pdf
- https://cdn.shopify.com/s/files/1/0431/1685/5457/files/54337792489.pdf
- https://cdn.shopify.com/s/files/1/0429/2732/5343/files/vodolanimoxodiweguxagedak.pdf
- https://cdn.shopify.com/s/files/1/0437/5655/2343/files/algebra_2_topical_review_book.pdf
- https://static.usrfiles.com/ugd/d775a9_959b487b7939436fbf63d2c5fb6b9c54.pdf
- https://static.usrfiles.com/ugd/b5aed9_79b3b39da71e47f2a8b3d623e3fec38e.pdf
- https://static.usrfiles.com/ugd/974a4e_4f4f58fe6bee4360be3edea4f6e57179.pdf
- https://static.usrfiles.com/ugd/b96e41_900b526260ca44b6808f49e6ada745dc.pdf
- https://static.usrfiles.com/ugd/5899d5_5c742ec837f74a9686b9e7c0ee0c8485.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_off00005e45.bine3a41c99527fc66c2ef0ebdb10afb1ca2e51729075346da19268052860ac0877 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E45 | 5148 bytes |
font_01_sfnt_off00006f9e.bin66e6d261403b8ff8864e7e26ad825b567c7cce55fa1609d6853cf89cad6d797b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F9E | 10404 bytes |
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