PDF malware analysis — malicious · 4eeb8f90851041f1

MALICIOUS

PDF

69.6 KB

MD5: ceac604c7261bfee0027755fcb8ede95 SHA-1: 9f599bbad8a729b03acac068c60391e4245be9c8 SHA-256: 4eeb8f90851041f13a43a0c579fee1c0dfc7a2fac39e0dcc9d78142fddfe290a

76 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.002 Spearphishing Attachment

The file is a PDF containing embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV also flagged it as Heuristics.PDF.ObfuscatedNameObject, suggesting malicious obfuscation. The embedded JavaScript, named 'javascript_obj0012_000.js', is likely responsible for executing the malicious payload. An embedded URL, http://www.bitstream.com, was also found, which could be used for further stages of the attack.

Heuristics 4

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.
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://www.bitstream.com

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0012_000.js` `81f4c24bdf2ac37d6d272915802d8c932742671b9524274e2ed28fc050338aa9`	pdf-javascript-stream	PDF /JS object 12 at offset 0x10616	3564 bytes

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