MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to a URL that is disguised as a fantasy football cheat sheet. The document body, though heavily obfuscated, contains the same URL. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to improve SEO for malicious content. The ML classifier strongly flagged this PDF as malicious.
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=yahoo+fantasy+football+cheat+sheet+half+ppr
- http://files.kingdomhandymangillette.com/uploads/1/3/1/4/131453124/cdaff080253f213.pdf
- http://files.idoflowers.net/uploads/1/3/1/4/131438059/5246234.pdf
- https://cdn.shopify.com/s/files/1/0428/7728/8611/files/prova_de_auditor_fiscal_da_receita_federal.pdf
- https://cdn.shopify.com/s/files/1/0434/7301/0840/files/93446149109.pdf
- https://cdn.shopify.com/s/files/1/0432/1122/7300/files/11809349355.pdf
- https://cdn.shopify.com/s/files/1/0428/3976/9254/files/gumubukabom.pdf
- https://cdn.shopify.com/s/files/1/0429/9236/9823/files/barista_resume.pdf
- https://cdn.shopify.com/s/files/1/0428/9704/7718/files/suxidetef.pdf
- https://cdn.shopify.com/s/files/1/0433/8191/5802/files/kazowa.pdf
- https://cdn.shopify.com/s/files/1/0429/9417/2058/files/nec_dt400_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/7103/6835/files/buvamovapomoterudo.pdf
- https://cdn.shopify.com/s/files/1/0429/9846/4661/files/nesolajomutafijezu.pdf
- https://cdn.shopify.com/s/files/1/0435/3032/2084/files/download_the_value_proposition_canvas.pdf
- https://cdn.shopify.com/s/files/1/0428/6958/8124/files/kefifeminebekebitopuxesuv.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_off0000cd73.bin563b4339021690c5df8efe5e16ff8c8d001f03e8a212fc5b503d8dc60fa3e152 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD73 | 5308 bytes |
font_01_sfnt_off0000df7f.bin3d0239088c8331b5328a555198d918f47a227c3e77af69a3030203ebf63940fa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF7F | 11140 bytes |
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