MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged as malicious by an ML classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=common+new+girlfriend', which is also listed as a malicious redirector. Additionally, the PDF contains a large number of external links, many pointing to 'static.usrfiles.com', suggesting a link farm or redirection strategy. 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.cc/wix?keyword=common+new+girlfriend
- https://static.usrfiles.com/ugd/4b874d_3fe6be3bac104c138f1fd8bcd8bab504.pdf
- https://static.usrfiles.com/ugd/fd3290_b09d4729553746038b46c8498cb3c58a.pdf
- https://static.usrfiles.com/ugd/b8c837_60a2b0324e5e4562ad4f5ea1b57b51ee.pdf
- https://static.usrfiles.com/ugd/b8c837_d76afc95570843bbb83e292015836584.pdf
- https://static.usrfiles.com/ugd/02beb7_9c464f2a46114ccdb245d0f7ac50cf5d.pdf
- https://static.usrfiles.com/ugd/b65acf_4701e86a9854469197737f1b71546c3d.pdf
- https://static.usrfiles.com/ugd/b8c837_2416ac1a9c6341dfa49e44188597864c.pdf
- https://cdn.shopify.com/s/files/1/0434/7514/0761/files/citation_machine_chicago_format.pdf
- https://cdn.shopify.com/s/files/1/0433/5665/1669/files/certificado_de_preparatoria_falso.pdf
- https://static.usrfiles.com/ugd/111c46_75237cca8d754d4ca6a3f3314c62284f.pdf
- https://static.usrfiles.com/ugd/83f04e_55589ce7ac23429faa70044759814eb3.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_off000062d8.bin0fb4c572b9aa45916bfc8c48fe24313892c016e5ed34e394bc4bf02122afec3d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62D8 | 4836 bytes |
font_01_sfnt_off00007345.bin19096be64b85e4ca2cbad653e831604c46ac653a2bb3aa5704f05c4ee6a2751c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7345 | 10848 bytes |
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