MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The primary malicious URL identified is https://ttraff.com/wix?keyword=recommendation+letter+for+professor+sample. The document body, though heavily corrupted, also contains this URL, suggesting it is the intended lure. The presence of numerous other links hosted on static.usrfiles.com indicates a broad distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=recommendation+letter+for+professor+sample
- https://static.usrfiles.com/ugd/93971e_87c493dc73b74064b569dde526dc5176.pdf
- https://static.usrfiles.com/ugd/6cfc61_0333a4aac39545ae89231b2832e888e9.pdf
- https://static.usrfiles.com/ugd/01e791_8ef0cafa3d1c459b968bf6514546b819.pdf
- https://static.usrfiles.com/ugd/b8c837_1eb19ebe98084798a5388d3372aada1d.pdf
- https://static.usrfiles.com/ugd/b8c837_00599d8ac6fc4720becba405955ae7e7.pdf
- https://static.usrfiles.com/ugd/9757e7_b6c1c4bc272445e58b6e784b5bbee671.pdf
- https://static.usrfiles.com/ugd/b8c837_f1ecf845b4e84769b685920271feb4ac.pdf
- https://static.usrfiles.com/ugd/f84671_5fe36ad6d47d4059974738585cca430b.pdf
- https://static.usrfiles.com/ugd/764aaa_bf08bb49b2ea4dad99a62986e660017d.pdf
- https://static.usrfiles.com/ugd/c3548c_26789274dc874a6fabee9241cdc70eba.pdf
- https://cdn.shopify.com/s/files/1/0431/9268/0611/files/cd_key_age_of_empires_3_the_warchiefs.pdf
- https://cdn.shopify.com/s/files/1/0437/8597/8018/files/jawotoruwamagebezurabeg.pdf
- https://cdn.shopify.com/s/files/1/0437/8509/3281/files/sepsis_shock_guidelines_2018.pdf
- https://static.usrfiles.com/ugd/7198c1_0b52a5fa59854f4e9af02b5887d0f518.pdf
- https://static.usrfiles.com/ugd/40512e_5b5c4a82f88446248df3008ab2b56cbe.pdf
- https://static.usrfiles.com/ugd/1cfe37_a47885d405144edc84d7da323eae62e1.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_off000065f5.bin2472cf4abd30cbd34cacb3022e9a8c3b326c13201638785a1c7d77ba6b641b7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65F5 | 5096 bytes |
font_01_sfnt_off00007720.bin7c440256c337cf206734b4fd5ec4a348f47db73af3affca189c6e44975f6190b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7720 | 10424 bytes |
font_02_sfnt_off00009ac0.bincd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AC0 | 4324 bytes |
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