MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.com, disguised with a keyword related to sheet music. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on static.usrfiles.com, suggesting a link farm or a method to obscure the true malicious destination. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is part of a phishing or malware distribution campaign.
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=ride+on+time+sheet+music
- https://static.usrfiles.com/ugd/83d902_7d38e83f4ece431a963142533ade672a.pdf
- https://static.usrfiles.com/ugd/43d598_c5ff77ba62ec44f08f14e7613125c688.pdf
- https://static.usrfiles.com/ugd/4dd980_7386ed91f4cc4023bdbb3bb66eef3cc6.pdf
- https://static.usrfiles.com/ugd/b8c837_5174e7def6a94be988f14b32e2cadd09.pdf
- https://static.usrfiles.com/ugd/1df9ea_157103e6fcb244e4ba2deb1739f34d33.pdf
- https://cdn.shopify.com/s/files/1/0437/1329/8581/files/sokawopolew.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53607129813.pdf
- https://cdn.shopify.com/s/files/1/0437/8951/6958/files/vamuv.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zupapinited.pdf
- https://cdn.shopify.com/s/files/1/0432/2358/0830/files/apc_br1500g_back-_ups_pro_1500_manual.pdf
- https://static.usrfiles.com/ugd/d4a9d6_2310ab1562d8406e985a6a7faaa7fe6a.pdf
- https://static.usrfiles.com/ugd/73f3b0_e2f51c6f797f473697ffa645fceb92d6.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_off00007450.binfb0239ecadbf02c1fea3e339420b945488dfbff1ea6e3f4a608df6b0ea5ea7f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7450 | 4848 bytes |
font_01_sfnt_off000084b0.bin5e169ff0952b236507f9cc1c6a6ecbfda7d2de77cd6d8f67784f82f7127999bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84B0 | 10076 bytes |
font_02_sfnt_off0000a760.binb59afbb2f683942213df284fd86cd9422ada0c5f1ffac7698db8c94a40390bc4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA760 | 16100 bytes |
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