PDF malware analysis — malicious · 3b698e25d04f56b8

MALICIOUS

PDF

44.7 KB

MD5: 4e197adc6fe3a748ec9c25794f5c22e8 SHA-1: 8373d650cb32a2836d4046dbb83d9310a57381b9 SHA-256: 3b698e25d04f56b85466dbc65a0b9ad7437255401da6cc3829feb554cc8f8422

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file exhibits multiple heuristic firings related to JavaScript and XFA forms, indicating malicious intent. The presence of embedded JavaScript, flagged as a critical heuristic, suggests the execution of potentially harmful code. While the document body is largely unreadable, the overall structure and heuristic firings point towards an exploit attempt. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload.

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.

Filename	Kind	Source	Size
`javascript_obj0012_000.js` `272a5cc9aad59ff3caea5b37224ec3cd2b17c5e7a2e2a4eb5ac00aad252febba`	pdf-javascript-stream	PDF /JS object 12 at offset 0xA1F0	3092 bytes

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