PDF malware analysis — malicious · fb9876d1fb04150e

MALICIOUS

PDF

47.7 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: Acrobat PDFMaker 7.0.5 for PowerPoint (via subst)

MD5: 0cd94959f9f4a58480edd2c7a9363607 SHA-1: ddfc6cb887e89c317b3a1e20faf82104bd553999 SHA-256: fb9876d1fb04150eaf489ae10e16145c3d28d64a651a66db6197852051a255e8

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, which identified it as Pdf.Exploit.Dropped-94. The presence of embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics, suggests an attempt to exploit vulnerabilities within the PDF reader. This JavaScript is likely responsible for downloading and executing a secondary malicious payload, a common technique for initial access.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0076_000.js` `58fd059fb00d52f26f86851bbcbf8797aecd7ee0e25223bbf161ffd4aad2aa98`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99B	46103 bytes

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