MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=free++bluestack+uptodown'. This URL is part of a link farm designed to attract traffic. The document body, though heavily obfuscated, also contains this URL. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.
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/pify?keyword=free++bluestack+uptodown
- http://gedaw.impactunited.net/uploads/1/3/1/3/131384424/gogaxufubed.pdf
- http://files.technicalwritingonline.net/uploads/1/3/0/7/130739060/vokezanekapuzevut.pdf
- http://files.riveroflifemedical.org/uploads/1/3/1/6/131606295/zanurizore_jupazitu_desuneruvewe_kujofulupokave.pdf
- http://files.pfcmooremess.com/uploads/1/3/0/7/130776072/65264bc54.pdf
- https://cdn.shopify.com/s/files/1/0428/0742/7238/files/vuxigivasibixizuvemenena.pdf
- https://cdn.shopify.com/s/files/1/0440/2675/7270/files/manual_biomagnetismo_gratis.pdf
- https://cdn.shopify.com/s/files/1/0439/0181/2904/files/ffx_official_strategy_guide.pdf
- https://cdn.shopify.com/s/files/1/0432/5982/2244/files/battersea_park_map.pdf
- https://cdn.shopify.com/s/files/1/0431/9327/0429/files/heroku_postgres_backup.pdf
- https://cdn.shopify.com/s/files/1/0431/6086/2882/files/zemijizepekowadezanagaweb.pdf
- https://cdn.shopify.com/s/files/1/0429/5449/0012/files/21092872797.pdf
- https://cdn.shopify.com/s/files/1/0435/4670/6088/files/halogen_derivatives_of_alkanes_and_arenes_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0433/3902/2485/files/29707732546.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_off000061d1.bin390b68ff8253f7e5100c238ceee7df960c0541ba6873376a323193c54a3d401b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61D1 | 7500 bytes |
font_01_sfnt_off00007b04.bine5c7222157c7a6043150d4225cf8aabcd677d01ec7bd15cf8a86c5b56cbbea6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B04 | 5320 bytes |
font_02_sfnt_off00008d33.bin7bd7d987201b39449e80d6d532382e3f840084bb0a6c3f5db8920d4c502969bf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D33 | 10248 bytes |
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