MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The primary malicious URL identified is https://ttraff.ru/wix?keyword=acpi_hal%255C+pnp0c08%255C+0, which is part of a known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL and numerous other links, suggesting a coordinated effort to distribute malicious content through a link farm.
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.ru/wix?keyword=acpi_hal%255C+pnp0c08%255C+0
- https://static.usrfiles.com/ugd/b8c837_6d1f8fe4a33d46089843b871d05a5bbf.pdf
- https://static.usrfiles.com/ugd/538d67_6396bffaf04e4c8e914a0edecd93b734.pdf
- https://static.usrfiles.com/ugd/b8c837_9c7202b59caa47c7907a047c07b8db53.pdf
- https://static.usrfiles.com/ugd/2b25b5_04f73f6ce7b2435faab43dc436ca7032.pdf
- https://static.usrfiles.com/ugd/b8c837_337eaea437404630ab88b982952dc62e.pdf
- https://cdn.shopify.com/s/files/1/0435/3402/4855/files/pdf_to_mp4.pdf
- https://cdn.shopify.com/s/files/1/0433/1434/8197/files/acceleration_equations_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8003629611.pdf
- https://cdn.shopify.com/s/files/1/0430/3064/2837/files/android_10_update_for_samsung_a8_plus.pdf
- https://cdn.shopify.com/s/files/1/0462/6943/1959/files/mabinogi_price_timer.pdf
- https://cdn.shopify.com/s/files/1/0428/8125/3535/files/15056280116.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_off00005f80.bind6757b55b5c0e08961534e18be47850d0cc5a5c29da06bf944219525942b64c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F80 | 3852 bytes |
font_01_sfnt_off00006d31.bined748f01da5f8bee802283fc57a1e38ee81fcd6507a0bbbe229716231a60c482 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D31 | 5136 bytes |
font_02_sfnt_off00007eb3.bin8337fb02335010342da7b89ab6495ce35e0390fbea63fe33829093c93be6c69e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EB3 | 14548 bytes |
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