Malicious PDF — malware analysis report

Static analysis result for SHA-256 467de7e1a494851e…

MALICIOUS

PDF

45.7 KB
MD5: 6540465879de65436db8d74d2dfbdb91 SHA-1: 8c278ded18ada818e5927972fb19f91bc093b1a2 SHA-256: 467de7e1a494851eeb59469da623755f19da18225fe536b20a60ea7ff38583c4
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file exhibits multiple heuristic firings related to JavaScript and XFA forms, with a critical ClamAV detection for obfuscated content. The presence of embedded JavaScript suggests an attempt to execute code upon opening the document. While the document body is unreadable, the combination of PDF structure and embedded script points towards a malicious intent, likely for exploitation or payload delivery. The specific URLs extracted are related to XFA, which is a known vector for PDF exploits.

Heuristics 5

  • 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
  • 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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0012_000.js
d6ba08559923024eb8214da87b5e18bbf347c930664822460fd4e1121d86d65d		 pdf-javascript-stream PDF /JS object 12 at offset 0xA1CC 4114 bytes

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