PDF malware analysis — malicious · bcebac9af3633e95

MALICIOUS

PDF

45.3 KB

MD5: 75b18e14da86c7b751fd7576347a2692 SHA-1: 961392dc306c642cec5e9b062092528d6a0a2f10 SHA-256: bcebac9af3633e95a02e710da18ea7aede2cdc62e9a9d5738fc3a6182a78070a

114 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically identified 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.

Machine Learning

Nyx PDF Classifier malicious score 0.9555

Heuristics 5

ClamAV: Pdf.Dropper.Agent-1506704 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-1506704
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` `f9e1c8fe3949635a932b3e323464f1e3507dacbfdbaccd49f477515a15b8bee9`	pdf-javascript-stream	PDF /JS object 12 at offset 0xA1D7	3786 bytes

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