MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF file contains a large number of embedded links, many of which point to a PDF link farm hosted on static.usrfiles.com. One of these links, https://ttraff.com/wix?keyword=quete+ragnar+nostale, is identified as a known malicious redirector. The ML classifier also strongly flagged this PDF as malicious. The presence of a link farm and a malicious redirector suggests an attempt to lure users to malicious infrastructure.
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.com/wix?keyword=quete+ragnar+nostale
- https://static.usrfiles.com/ugd/23e9be_5385f51ac92441aaad8ad269d107db70.pdf
- https://static.usrfiles.com/ugd/d775a9_e9fd05c719424219a3b4c7ca001262db.pdf
- https://static.usrfiles.com/ugd/b8c837_fdf5f146ca094003854c4e8304bba7de.pdf
- https://static.usrfiles.com/ugd/e6092c_98d1d72a4c2d4d27bf6896bc17360f95.pdf
- https://static.usrfiles.com/ugd/4dd980_400a6e5dde7e4ea991a92e94524164b2.pdf
- https://static.usrfiles.com/ugd/238140_196987be67ef43bc93bc230548aac788.pdf
- https://static.usrfiles.com/ugd/7ff653_b5cd2f6879d649afacc865d9c1ecdfaf.pdf
- https://static.usrfiles.com/ugd/735424_bf514eab0b7a484098951f757d4ea33d.pdf
- https://static.usrfiles.com/ugd/e2b09b_47f58c2386774d85ad698115d6dfef3c.pdf
- https://static.usrfiles.com/ugd/b8c837_e43cd70dca8b46ba9686f78f1d9aba3d.pdf
- https://static.usrfiles.com/ugd/b8c837_972a347c37134841bd889e0d19d56688.pdf
- https://static.usrfiles.com/ugd/173616_cb0c949cef6d485aa6435ac11a89fa9e.pdf
- https://static.usrfiles.com/ugd/0cd019_454a39dfc9624187a52dfa878b67ec6e.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_off00005ad1.bin7651b9c4e97b9e121ddd3c62198918aadbb7eaf5e42660e62b24a86aa442970f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AD1 | 4912 bytes |
font_01_sfnt_off00006b97.bine303d3300eafca2dd294957fda044824f132e42c2a138cc116cd665a816c7dee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B97 | 10216 bytes |
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