MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document was flagged as malicious due to a critical heuristic firing for a redirector link pointing to ttraff.cc. Additionally, the PDF contains a large number of embedded links, many hosted on static.usrfiles.com, suggesting a link farm or SEO poisoning tactic. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be a malicious redirector link embedded within the document.
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=the+complex+sentences+with+adverbial+clauses+of+cause+purpose+and+manner+%25D0%25BF%25D1%2580%25D0%25B0%25D0%25B2%25D0%25B8%25D0%25BB%25D0%25B0
- https://static.usrfiles.com/ugd/105a8c_ee9c9abd46264475bee835294cae772e.pdf
- https://static.usrfiles.com/ugd/b8c837_870f38f1880f485db65ace1972aabca5.pdf
- https://static.usrfiles.com/ugd/efb3f0_d12091cc6ca34a56917ef802f9cfd461.pdf
- https://cdn.shopify.com/s/files/1/0428/3102/0198/files/wikaxodelasuwenumukena.pdf
- https://static.usrfiles.com/ugd/b8c837_76bac145d3f942f5895190352fac18c3.pdf
- https://static.usrfiles.com/ugd/b8c837_0a0445fbf03441d0a8e13c78aaf8a6cc.pdf
- https://static.usrfiles.com/ugd/b56239_387f52d9b7074d188f73973dccb7d81d.pdf
- https://static.usrfiles.com/ugd/b8c837_1cb4107600054da8b5f169b8a7abdea4.pdf
- https://static.usrfiles.com/ugd/6cf392_8963222d8b0742fcae1062cb4c5b01e3.pdf
- https://static.usrfiles.com/ugd/b8c837_aa28568802844c82bf3acaf25de470f5.pdf
- https://static.usrfiles.com/ugd/b8c837_5feaceab535f40989b1c48f2273993c2.pdf
- https://static.usrfiles.com/ugd/b8c837_854749b94cf34baca9ab932ae6fd90a9.pdf
- https://static.usrfiles.com/ugd/88a84f_03dfe46aaeb543e1a7e4ed7e88144181.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_off0000f90d.bina02d68ef2c7ccdf5a958aea577a3b060a8a18f8480fa07efd9271a27009302b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF90D | 6412 bytes |
font_01_sfnt_off00010dd3.bincc85592c79466fb44616d63c49bc3975ba7e5ed55fc0270d15a8375eeed5f53a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DD3 | 10464 bytes |
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