Malicious PDF — malware analysis report

Heuristics 8

• Adobe Reader CoolType SING font exploit — CVE-2010-2883 critical CVE likely CVE_2010_2883
  PDF embeds a TrueType/OpenType font with an actual SING table and pairs it with JavaScript heap-spray shellcode. This matches the public Adobe Reader CoolType SING exploit shape for CVE-2010-2883.
• PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTER
  PDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
• ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
• JavaScript action low PDF_JAVASCRIPT
  PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• XFA form low PDF_XFA
  PDF uses XML Forms Architecture — can contain script logic
• PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
  The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
• Embedded URL info EMBEDDED_URL
  One 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 http://ns.adobe.com/xdp/

  • http://www.xfa.org/schema/xci/2.6/
  • http://www.xfa.org/schema/xfa-template/2.6/

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