MALICIOUS
152
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, which is disguised as a search result for 'Android sdk ddms files not found'. The document body, though heavily obfuscated, contains this URL and numerous other links to PDF files hosted on static.usrfiles.com, suggesting a link farm or redirection strategy. The ML classifier strongly supports the malicious verdict.
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=android+sdk+ddms+files+not+found
- https://static.usrfiles.com/ugd/23e9be_e37abf911c7142a1b72c94bd6a921d41.pdf
- https://static.usrfiles.com/ugd/e3c460_75efaa6571ab4d759e8b982dd4b977ea.pdf
- https://static.usrfiles.com/ugd/f967ac_87ee316cce9b49d7887d76cb9d69fffe.pdf
- https://static.usrfiles.com/ugd/111c46_a46a1b09e1c94e51b0f91a1a1e2d3516.pdf
- https://static.usrfiles.com/ugd/5cf23b_050cf7b846d041f0a558971a8a9e3bb3.pdf
- https://cdn.shopify.com/s/files/1/0428/6555/7670/files/cerro_rico_de_potosi.pdf
- https://cdn.shopify.com/s/files/1/0431/8072/0294/files/mobatisozogutasapo.pdf
- https://static.usrfiles.com/ugd/45e30f_4e0ee97db7314949b39906d807ae3a61.pdf
- https://static.usrfiles.com/ugd/c618e9_6b36a74415c143259f07bb33e3ae1b64.pdf
- https://static.usrfiles.com/ugd/9757e7_0006acc6c90343a6b04d9d2a746e38eb.pdf
- https://static.usrfiles.com/ugd/b8c837_38d7b0e6c97e424aa457235151730891.pdf
- https://static.usrfiles.com/ugd/405339_e655e31278a343eca51c024e0c422d75.pdf
- https://cdn.shopify.com/s/files/1/0439/5125/9803/files/bookworm_adventures_2_for_pc.pdf
- https://cdn.shopify.com/s/files/1/0428/3501/7884/files/nubaver.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_off00006eca.bind550af5f647e5dcf51f16f6e5c26192e231f5e8a26046d1cf64d296f88c024ea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ECA | 4896 bytes |
font_01_sfnt_off00007f5a.bin7da2ff6964bdba10689d770c79a2a2ad935787dcd6e00583698133051af2d147 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F5A | 13936 bytes |
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