MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the redirector. The presence of a large number of external PDF links, many pointing to static.usrfiles.com, suggests a link farm or a method to obscure the ultimate destination.
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=new+vegas+ed-+e+my+love
- https://static.usrfiles.com/ugd/b8c837_b128c3a141f74a0eb75a7d75772ce05b.pdf
- https://static.usrfiles.com/ugd/b8c837_12985fe92d964c679b808b2fc07d15e6.pdf
- https://static.usrfiles.com/ugd/61f964_2f00418410e842a6bd91f23c73b5e525.pdf
- https://static.usrfiles.com/ugd/cafc24_f50bcef046b340bd9cc04c1e7e134b9a.pdf
- https://static.usrfiles.com/ugd/b8c837_6121099b4b3845219d4bbc06114877e3.pdf
- https://static.usrfiles.com/ugd/4725f1_632558d9917f4f919087ddbff8469e95.pdf
- https://static.usrfiles.com/ugd/5360f8_1609ee9f39634e65a12535a95b3a253f.pdf
- https://static.usrfiles.com/ugd/ecec20_076292c275304be4b713cd867c4bfec7.pdf
- https://static.usrfiles.com/ugd/b8c837_e46cd4cd6ce043e0b967df1c11e1ab78.pdf
- https://static.usrfiles.com/ugd/36f25b_a7833a29ad134510a8da21a6807b75a4.pdf
- https://static.usrfiles.com/ugd/b8c837_96ca8690fda74c27bbbcaf388d325fc6.pdf
- https://cdn.shopify.com/s/files/1/0434/4774/6710/files/liwitikitowifuwad.pdf
- https://cdn.shopify.com/s/files/1/0431/7482/2044/files/vovibirufigojaxewidexuru.pdf
- https://cdn.shopify.com/s/files/1/0436/0595/0626/files/5605468515.pdf
- https://cdn.shopify.com/s/files/1/0432/3042/9346/files/baby_shower_invitations_templates_free.pdf
- https://cdn.shopify.com/s/files/1/0427/6623/7852/files/bezefoguwaturukuwupemajo.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_off00007931.binafc0d74ca797edc951367c15fac45d9db20aa5d9fd717c9cad534dc326a4118a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7931 | 5304 bytes |
font_01_sfnt_off00008b59.bin35ad6e4f0b6256e532b6fb2c4795a4ef113d3803192326b20c21f66cbe131880 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B59 | 11260 bytes |
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