MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The link `https://ttraff.cc/wix?keyword=tantra+pdf+free` is the primary indicator of malicious intent. The file also contains a large number of embedded links, many pointing to `static.usrfiles.com`, which is flagged as a link farm. The ML classifier strongly supports the malicious verdict.
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.cc/wix?keyword=tantra+pdf+free
- https://static.usrfiles.com/ugd/80c1db_0a08c2f2a142461cb5c3be14f82e49d9.pdf
- https://static.usrfiles.com/ugd/cbdbb6_035ca15a452f4f169b407bb7ebc0777a.pdf
- https://static.usrfiles.com/ugd/b8c837_a62f106c7fe5456199d27a2c9b566263.pdf
- https://static.usrfiles.com/ugd/39cb9d_cc037c0138844ef9b44f0df36b4dfb99.pdf
- https://static.usrfiles.com/ugd/d902bb_8d578d2bbd6b4fae8c2d9266c24c20b4.pdf
- https://static.usrfiles.com/ugd/22bf55_b42c86fdda8a48609ae81297ab59eb4e.pdf
- https://static.usrfiles.com/ugd/eda9ba_c1a1b2147b2a44029173eaaa3d6aaadb.pdf
- https://cdn.shopify.com/s/files/1/0462/7827/9317/files/mizutuma.pdf
- https://cdn.shopify.com/s/files/1/0431/4093/9933/files/alcanos_ejercicios_resueltos.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81108552740.pdf
- https://cdn.shopify.com/s/files/1/0450/6419/2150/files/sijesomoraninajixivanur.pdf
- https://cdn.shopify.com/s/files/1/0446/9984/4762/files/b._ed_first_year_books_in_english.pdf
- https://cdn.shopify.com/s/files/1/0430/9480/2593/files/32882523033.pdf
- https://cdn.shopify.com/s/files/1/0431/1384/0793/files/25844315985.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_off00006104.bin26b95f4b6f1f92a929b1aa44f0638b94d41d7c8b71ab789eb59db360a5e94bf8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6104 | 4772 bytes |
font_01_sfnt_off00007152.bin49f866a2a0a7b06d99cf21682ef90471462f0aa4e9e0ce82846efdb8dc5570d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7152 | 11180 bytes |
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