MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. It also contains a large number of external PDF links, characteristic of a link farm. The primary malicious URL identified is https://ttraff.cc/wix?keyword=physics+for+scientists+and+engineers+giancoli, which likely serves as the initial lure or redirector.
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=physics+for+scientists+and+engineers+giancoli
- https://static.usrfiles.com/ugd/b8c837_b9cb98e7aaa244ebb303e8d3e69481bb.pdf
- https://static.usrfiles.com/ugd/b8c837_c4561c2183f94120b0ed500ba06b6d3c.pdf
- https://static.usrfiles.com/ugd/93c935_eae9dc9931de4b378c0c3619b355b810.pdf
- https://static.usrfiles.com/ugd/b8c837_8056c5936ebc4364bbd367e4684a9b01.pdf
- https://static.usrfiles.com/ugd/b8c837_3e6c9b4ac71343a5b67e9dac467c4afb.pdf
- https://static.usrfiles.com/ugd/b8c837_b4bf28d886724b2fb5d66d5345da4ae8.pdf
- https://static.usrfiles.com/ugd/b8c837_72a36348727c4e4a8f130218f187521d.pdf
- https://static.usrfiles.com/ugd/b8c837_79d18a12e5bf4706bb62bc5982b6810e.pdf
- https://static.usrfiles.com/ugd/b8c837_702f54417be04f348fcd7bf88b2809b7.pdf
- https://static.usrfiles.com/ugd/b8c837_6284ee5ef7f74cc293fa6d99cbb42d45.pdf
- https://cdn.shopify.com/s/files/1/0471/0521/2566/files/tokuyama_daigoro_making.pdf
- https://cdn.shopify.com/s/files/1/0429/1503/7351/files/19592106001.pdf
- https://cdn.shopify.com/s/files/1/0435/9431/7981/files/56405889687.pdf
- https://cdn.shopify.com/s/files/1/0435/4847/5541/files/1727645077.pdf
- https://static.usrfiles.com/ugd/b8c837_5108e906952e4dbca29928509db2eede.pdf
- https://static.usrfiles.com/ugd/b8c837_f0328a08538c460e8b0451d8c349ddf8.pdf
- https://static.usrfiles.com/ugd/b8c837_1ce5197c9e444e41af22a31f73cc618d.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_off00009632.binde781cb3a25aba9ca8fb96277a8131ce3c5530c5b868ee0d36cc5d7f2da5a398 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9632 | 5388 bytes |
font_01_sfnt_off0000a86f.bina0d022840078ac73d5abc5f0016508f6de119812dda8a40b5a857ca57256bc99 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA86F | 10360 bytes |
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