MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to contain text related to an academic book, likely a lure. The ML classifier strongly flagged this PDF as malicious, indicating a high probability 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=modern+labor+economics+13th+edition
- http://gever.mclewis63.com/uploads/1/3/0/7/130776068/4828831e4.pdf
- http://files.afchoir.org/uploads/1/3/1/0/131069869/xaxebababot_zukejomovujub_jazuz_jibonef.pdf
- http://files.anewleaf4you.com/uploads/1/3/1/4/131454345/wixurobelajeku-ziwesikip-viratikomugotot-xijurofiwujax.pdf
- http://wozur.yurigiorguanime.com/uploads/1/3/1/4/131406893/b9aae95817.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/8990/3264/files/8191757873.pdf
- https://cdn.shopify.com/s/files/1/0431/5689/7947/files/vutuderonaporabokexuje.pdf
- https://cdn.shopify.com/s/files/1/0432/3147/7922/files/nisajutiwelegotirof.pdf
- https://cdn.shopify.com/s/files/1/0434/0681/9477/files/no_colbert_report_last_night.pdf
- https://cdn.shopify.com/s/files/1/0437/0504/1051/files/vekekanuvosuraxale.pdf
- https://cdn.shopify.com/s/files/1/0434/3260/7894/files/tuwaba.pdf
- https://cdn.shopify.com/s/files/1/0434/5161/3334/files/bumemilasuzosimutiwibike.pdf
- https://cdn.shopify.com/s/files/1/0438/8945/9368/files/98294659634.pdf
- https://cdn.shopify.com/s/files/1/0434/3159/2092/files/vray_material_library_for_3ds_max_20.pdf
- https://cdn.shopify.com/s/files/1/0433/5468/5599/files/visefanusekopemi.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000544c.bin8b3cc2180a783236dd9dd7aeedcedd30435c46a224417a0bc0fc66e4bef0d83d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x544C | 5540 bytes |
font_01_sfnt_off000066fa.bin368584400f7bf149345b89df7b4f1c4a2c48ab558080fbafdbb058bdd0b2a364 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66FA | 9516 bytes |
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