Malicious PDF — malware analysis report

Static analysis result for SHA-256 59c100005462e6eb…

MALICIOUS

PDF

45.1 KB
MD5: aa5a28d0c96c11741f33fb5c3c7074de SHA-1: e4758eeef5dc05265d6115f76b57837be9a42f11 SHA-256: 59c100005462e6eb81d5a44f1b954f9a6e742dcf126382c25797ed40cd9e5c2b
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file exhibits multiple heuristic firings related to JavaScript and XFA forms, with a critical ClamAV detection for obfuscated objects. The presence of embedded JavaScript, indicated by 'PDF_JAVASCRIPT' and 'PDF_JS' heuristics, suggests an attempt to execute malicious code. While the document body is heavily obfuscated and unreadable, the overall structure and heuristic firings point towards a malicious PDF designed to exploit vulnerabilities or download further malware. The embedded URLs, though mostly benign or unknown, are part of the document's structure.

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
6689e9ad5daf9c05a410f99255aaf9f9662939d4292931f70e85082963c4fc4b		 pdf-javascript-stream PDF /JS object 12 at offset 0xA1DC 3534 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.