MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by a machine learning classifier and contains multiple heuristics indicating malicious intent. It features a link farm with 24 external PDF links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/pify?keyword=coyote+gulch+trail+guide', which is likely intended to lead the user to malicious content. The presence of numerous benign-looking PDFs hosted on 'static.usrfiles.com' suggests an attempt to camouflage the malicious redirector within a larger set of links.
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.club/pify?keyword=coyote+gulch+trail+guide
- https://static.usrfiles.com/ugd/538d67_7aea9b22edc5429080bb7c085aa620c3.pdf
- https://static.usrfiles.com/ugd/3f4b99_39f24fca053f4285b0e963907d9b3890.pdf
- https://static.usrfiles.com/ugd/b8c837_dcb5058c29704033828765542c911985.pdf
- https://static.usrfiles.com/ugd/9904c2_a8bdb7e38a8642ee8db91cb23bc5b5e4.pdf
- https://static.usrfiles.com/ugd/e3834b_afc42a5664cb458abb20010508615774.pdf
- https://static.usrfiles.com/ugd/6f9b04_0c7f5e5645584e3197458e3199ebca51.pdf
- https://static.usrfiles.com/ugd/374ce0_53760700f45d466dbf3fb5a8cbd57d35.pdf
- https://static.usrfiles.com/ugd/b8c837_55d976cb04a84082b6f311c67079b2d0.pdf
- https://static.usrfiles.com/ugd/0c4177_ab399e667467415e9829f2aeedd18310.pdf
- https://static.usrfiles.com/ugd/dc98cc_39b870c3af5545cc853972f556d91b9a.pdf
- https://static.usrfiles.com/ugd/3eed2b_df44b27a190842ccb65b603f00cb1641.pdf
- https://static.usrfiles.com/ugd/dd6616_bf2935dcc76546999d61ab141c92b767.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_off00008140.bin4028467159e00491ba822b47a62da4b7fafbbe12dad8587d7723cd9c8e85959f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8140 | 5028 bytes |
font_01_sfnt_off0000925a.binc15156e0d83309632649897d26874ac47b3ca43debc312995832877ca4ac7aa4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x925A | 11876 bytes |
font_02_sfnt_off0000b974.bin975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB974 | 16312 bytes |
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