Malicious PDF — malware analysis report

Static analysis result for SHA-256 52752a854ad7a40d…

MALICIOUS

PDF

45.0 KB
MD5: 931fe142211db71d4a101d41175c2292 SHA-1: c1a84179b8d69d53d078369e1fcbc9d6b33c6187 SHA-256: 52752a854ad7a40d0490317e3ae7284a991110ebedf3a409f22adf0720440ddf
114 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, identifying it as a dropper. Embedded JavaScript actions and streams were detected, indicating the likely execution of malicious code. The primary function appears to be downloading and executing a second-stage payload, as suggested by the dropper classification and the presence of embedded JavaScript. The document body is unreadable, but the technical indicators point to a malicious dropper.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9401

Heuristics 5

  • ClamAV: Pdf.Dropper.Agent-1507060 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-1507060
  • 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
7e14ea4485e5cf0d2cb711aa88750b639fe65bd005c0f37a2e722058aab95142
pdf-javascript-stream PDF /JS object 12 at offset 0xA1FA 3486 bytes