MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. This URL is likely part of a phishing or malware distribution chain. The document body, though heavily obfuscated, also contains this URL. The presence of numerous external PDF links, many hosted on 'static.usrfiles.com', suggests a link farm or a method to obscure the ultimate destination. The ML classifier also strongly flagged this PDF as malicious.
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=article+of+association+pdf+notes
- https://static.usrfiles.com/ugd/b8c837_f68ba551c4664203a2ecacec1817c8da.pdf
- https://static.usrfiles.com/ugd/d162e3_2f688792e13e43a98f88088fefcc38b1.pdf
- https://static.usrfiles.com/ugd/3aca14_a63616ec77fb4a909a5808d906544800.pdf
- https://static.usrfiles.com/ugd/0d002d_27d351d9c494446f88bccee225e3acda.pdf
- https://static.usrfiles.com/ugd/a2d007_c1b167060067497292f6a4c13f77075a.pdf
- https://static.usrfiles.com/ugd/4725f1_4b4ae5e5e7b74326abee05053c0f96b5.pdf
- https://static.usrfiles.com/ugd/b8c837_1e32c33576144ae6bc827d11eab69f72.pdf
- https://cdn.shopify.com/s/files/1/0437/2804/4193/files/anuncios_publicitarios_definicion.pdf
- https://cdn.shopify.com/s/files/1/0428/2325/4179/files/sikamaradud.pdf
- https://cdn.shopify.com/s/files/1/0434/5469/3537/files/segetad.pdf
- https://static.usrfiles.com/ugd/cb5dea_bf1c321226274715b34949eefffffad6.pdf
- https://static.usrfiles.com/ugd/516793_714acfd4f86e44f29cef460feb42cdc0.pdf
- https://static.usrfiles.com/ugd/4826f5_ee877c7b3f8f4b9f9960659ca37d4bc1.pdf
- https://static.usrfiles.com/ugd/9d66c7_d54383ee39bf4c418d351b28bc80dac4.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_off0000754a.bind7c07660945e29372d1bef281396891bec0af1e4c2cdf15454ec2f2cad867879 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x754A | 5140 bytes |
font_01_sfnt_off000086da.bin0d036348eba585661fa5f6561003710665faa16093915767b799942fe6860308 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86DA | 9688 bytes |
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