PDF malware analysis — malicious · f65cf9f96eda6333

MALICIOUS

PDF

2.6 KB Created: 2008-31-20 53:85:00 Authoring application: aaaaaaaa

MD5: 51bc897d7318ac485d9058557f1e24c0 SHA-1: 58f6b40e9e556763e5a76f6becdfe5ad64200626 SHA-256: f65cf9f96eda63330cd44deede7eda8a4f35cb52b3a2029c46b8732e40271ffb

78 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics, and a suspicious extracted artifact named 'javascript_obj0013_001.js'. ClamAV also flagged it as Heuristics.PDF.ObfuscatedNameObject. The embedded JavaScript is likely used to exploit vulnerabilities within the PDF reader or to download and execute a secondary payload, which is a common attack vector for malicious PDFs.

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.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `1b84d8055fb834ead76942fae430a40ea6bf06f780ad5c3bc410c6168668af8a`	pdf-javascript-stream	PDF /JS object 13 at offset 0x329	4003 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 6 eval/decoder/string-building token(s).

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