MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to a lure for 'drivers detective crack'. This link leads to ttraff.ru, which is known malicious infrastructure. The document also contains a mass external PDF link farm, with the dominant host being static.usrfiles.com. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted from this sample.
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.ru/wix?keyword=drivers+detective+crack
- https://static.usrfiles.com/ugd/b8c837_8c8db09b874642879def5dcbfd0058e2.pdf
- https://static.usrfiles.com/ugd/b8c837_6b38903ac0944aadbc3783f42a6e28be.pdf
- https://static.usrfiles.com/ugd/b8c837_2f46307689d54debacfec8c14670a98d.pdf
- https://static.usrfiles.com/ugd/b8c837_38c8f7ec8ff14a9e93db357aff1485b5.pdf
- https://static.usrfiles.com/ugd/b8c837_82ffa41a2f0a4ea58ef08650f38e5c37.pdf
- https://static.usrfiles.com/ugd/b8c837_976822f605494c2280f25cbafcfbd61d.pdf
- https://static.usrfiles.com/ugd/b8c837_9c7c66be668b4432a4816b250b75f5d3.pdf
- https://static.usrfiles.com/ugd/b8c837_520695429b8040a68507a86bffe1995b.pdf
- https://static.usrfiles.com/ugd/b8c837_c8cb7da0ef3f4a4dab8a47c7576dcc1b.pdf
- https://static.usrfiles.com/ugd/b8c837_757eb45f7b604307b38eaf564db98e1c.pdf
- https://static.usrfiles.com/ugd/b8c837_4b8fb097159b46f8baa5753c1a57bc4d.pdf
- https://static.usrfiles.com/ugd/b8c837_3eecc460d65b40b39c20558ba37dc838.pdf
- https://static.usrfiles.com/ugd/b8c837_1bdc95b42e6642598840b247177bcbaa.pdf
- https://static.usrfiles.com/ugd/b8c837_847181db77ea4b77923e3445bc95c134.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006529.bin22aed680bee9b8346c267b92c4d98f22445c2610ba65454b5d6b4da70624dbcb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6529 | 4596 bytes |
font_01_sfnt_off000074de.bind286afda7ad4b05034ac9a29115df5ae271bc7d9b53e4640fe5dcac467f4396b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74DE | 11592 bytes |
font_02_sfnt_off00009a7f.bin9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A7F | 4324 bytes |
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