PDF malware analysis — malicious · f50b4fa51ace522f

MALICIOUS

PDF

45.1 KB

MD5: b88746957acbcb95fca66ad5ab8005de SHA-1: 75ec9c445e931bb558179007bfb95c88edaea1db SHA-256: f50b4fa51ace522fa35abbc481c5245e163523f8f007bab912f05aded9f966c1

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains obfuscated JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. This script is likely responsible for downloading and executing a second-stage payload, as suggested by the critical ClamAV detection for Heuristics.PDF.ObfuscatedNameObject. While the document body is unreadable, the presence of embedded JavaScript and XFA form elements points towards a malicious intent, likely for malware delivery.

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` `42460dd87a93ea880182e3f5ba033cd9165fc64cffb8d69014cc57db7c809743`	pdf-javascript-stream	PDF /JS object 12 at offset 0xA1F6	3477 bytes

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