MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1200 Hardware Add-in
The PDF document was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains URLs that are part of a large link farm, suggesting a tactic to increase search engine visibility for malicious content. The primary malicious URL identified is https://ttraff.cc/pify?keyword=calcium+oxalate+kidney+stones+pdf.
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.cc/pify?keyword=calcium+oxalate+kidney+stones+pdf
- http://files.mciea.org/uploads/1/3/0/8/130874205/b05df30f92d9.pdf
- http://totev.differentshadesofcomedy.com/uploads/1/3/0/7/130775795/1162930.pdf
- http://nolupegax.talesfromasketchyartist.com/uploads/1/3/0/8/130814017/wufiso.pdf
- https://cdn.shopify.com/s/files/1/0434/4800/8866/files/kesipurugozavejomapapate.pdf
- https://cdn.shopify.com/s/files/1/0427/9504/0924/files/xujuwewudoluwune.pdf
- https://cdn.shopify.com/s/files/1/0433/7578/8184/files/wotlk_jewelcrafting_guide.pdf
- https://cdn.shopify.com/s/files/1/0437/7794/9848/files/simple_poll_discord.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38746106010.pdf
- https://cdn.shopify.com/s/files/1/0439/2442/2811/files/webogiwadubodoraju.pdf
- https://cdn.shopify.com/s/files/1/0434/4394/5628/files/73635476504.pdf
- https://cdn.shopify.com/s/files/1/0430/8634/8450/files/kunabegabadevofakakazov.pdf
- https://cdn.shopify.com/s/files/1/0436/9596/4328/files/663040138.pdf
- https://cdn.shopify.com/s/files/1/0434/9624/3364/files/ky_driver_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/1077/6484/files/gotowok.pdf
- https://cdn.shopify.com/s/files/1/0427/7701/8524/files/bigej.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_off000065bb.bind43603fd5bece9f024c68d87ee6d27e083fd7c646a95cba579ed60eb50b82905 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65BB | 5344 bytes |
font_01_sfnt_off000077e8.bin11b047ecac385faeeefc68a6dc2f1c9c2e171aefc3122e53575b9cdd0c863449 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77E8 | 10020 bytes |
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