MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File
The PDF file contains embedded JavaScript that exploits a prototype pollution vulnerability, specifically related to CVE-2026-34621. This JavaScript is designed to execute arbitrary code, likely leading to the download and execution of a secondary payload. The presence of JavaScript and the specific exploit pattern strongly indicate a malicious intent to compromise the user's system.
Heuristics 5
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Acrobat prototype-pollution PoC/exploit pattern — CVE-2026-34621 related critical CVE likely CVE_2026_3461_RELATEDPDF JavaScript combines Acrobat prototype pollution targeting privileged state with an execution or sensitive file-read primitive. This matches the likely CVE-2026-34621 PoC/exploit cluster without asserting the exact internal Adobe API chain.
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Prototype-pollution JavaScript pattern high PDF_JS_PROTOTYPE_POLLUTIONPDF JavaScript mutates object prototypes while also referencing privileged or sensitive PDF APIs. This tracks a modern PDF exploit technique family without assigning an unverified CVE.
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Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.URL http://192.168.1.100/cve-2026-34621-beacon
- http://192.168.1.100/beacon2
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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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