MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and a large list of other URLs hosted on 'static.usrfiles.com', suggesting a link farm designed to distribute malicious content. The primary attack pattern involves luring users through these links.
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=shrek+dark+souls+3
- https://static.usrfiles.com/ugd/e3ff21_1e7495ee2d64433883fe2679139eb7ae.pdf
- https://static.usrfiles.com/ugd/ad2ade_c585fef45e484de2b9ad76cd892d1269.pdf
- https://static.usrfiles.com/ugd/837d34_abd5d419e798444e8a77928afcd5791b.pdf
- https://static.usrfiles.com/ugd/3f80ec_970e4fb43d7c49d48038cb099a2593db.pdf
- https://static.usrfiles.com/ugd/b8c837_9bc31f4d6b524514a431ef7b2747371e.pdf
- https://static.usrfiles.com/ugd/4bdc6d_f5b2f75458074564b2cd1a5de066eb40.pdf
- https://static.usrfiles.com/ugd/b8c837_5ae5a8526eff4daead8a6266f2e97379.pdf
- https://static.usrfiles.com/ugd/40512e_f767315dda5a4248bf225bcca1d27bd9.pdf
- https://static.usrfiles.com/ugd/19103d_5f952d0f83714166b4128e68a1098b01.pdf
- https://static.usrfiles.com/ugd/756799_0e71fe84fca54fe1bbe06f943b399b7c.pdf
- https://static.usrfiles.com/ugd/a382ee_0453a67b5ad3409faa77e558d12dfa44.pdf
- https://static.usrfiles.com/ugd/3f4b99_160d6dd62b07428a89e8983bc9caa38e.pdf
- https://static.usrfiles.com/ugd/b8c837_e1ecea4fb2ef4005905eea90850c4860.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_off00004f6b.binf7925177b83ed13b45246e591fbaa689e5c091c771f06e0c1a83c3081c0609f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F6B | 5244 bytes |
font_01_sfnt_off00006130.bin92588bfea28c045357de3c3aa77ff91b54f9b532c9d83967b326e9248da34315 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6130 | 10536 bytes |
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