MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains embedded links, one of which, 'https://ttraff.com/pify?keyword=smart+audiobook+player+apkpure', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text fragments suggesting a lure related to 'Smart audiobook player apkpure'. The presence of a large number of external PDF links, many pointing to static.usrfiles.com, indicates a link farm strategy, likely to improve search engine ranking and distribute malicious content.
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/pify?keyword=smart+audiobook+player+apkpure
- https://static.usrfiles.com/ugd/808d8c_c160903d59524ea0989ad83694d28fbc.pdf
- https://static.usrfiles.com/ugd/36f25b_e77d1605e2364dfba062be0ba7a817b1.pdf
- https://static.usrfiles.com/ugd/912de2_b989811a0b89490daf1a856146aefa53.pdf
- https://static.usrfiles.com/ugd/b8c837_7d64aeb2fd244f58acb219daefbb57bf.pdf
- https://static.usrfiles.com/ugd/b8c837_79cc6e811873480ca61b1ff00357a0c7.pdf
- https://static.usrfiles.com/ugd/374ce0_bf70b33f831d480ba385e0acbb59fb0c.pdf
- https://static.usrfiles.com/ugd/7d1dc9_a81c397609e940f99c70b0a14faf7798.pdf
- https://static.usrfiles.com/ugd/a48928_6abf0351dc1f4dd483db9a95046f3e69.pdf
- https://static.usrfiles.com/ugd/b56239_60a8711f72054eb797110211f8e01c1c.pdf
- https://static.usrfiles.com/ugd/764aaa_914030dea3dc433b828444bb6dfa51df.pdf
- https://static.usrfiles.com/ugd/89064d_3eed73c60820492f8c0764cf37233809.pdf
- https://cdn.shopify.com/s/files/1/0432/1663/4016/files/75701714632.pdf
- https://cdn.shopify.com/s/files/1/0432/5546/4104/files/x_ray_app.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_off000064d3.bin648a0b55625efc0695741698bb7c22f62dd0fe8e711bfa9da473509f0ad69eed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64D3 | 5336 bytes |
font_01_sfnt_off000076e6.binf7eb2c993845caf8ad71b2fa1b326f39a477a8a44006a0d2f299f982d98814fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76E6 | 10096 bytes |
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