PDF malware analysis — malicious · a4807bf06edc0ee2

MALICIOUS

PDF

9.4 KB Created: 2010-05-23 04:38:47 Authoring application: KHQnyyfJjkGepx (via yfXJByKkRrutBrnDuJYtoTec)

MD5: 2f6097ee31cbdc52ba86a7828e573844 SHA-1: 37be856b6c8183e2487a7e6de5087bc7495aeb2e SHA-256: a4807bf06edc0ee29472a1243ff95054d26e7cdef24b60029e51a31fbc7c42f1

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, as indicated by multiple heuristic firings and ClamAV detection (Pdf.Exploit.Agent-35572). The ML classifier also flagged it as highly malicious. The embedded JavaScript stream, named 'javascript_obj0007_000.js', is the primary indicator of malicious activity. While the exact script functionality is not fully detailed, its presence within a PDF known to exploit vulnerabilities strongly suggests it's used to download and execute a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-35572 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35572
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_obj0007_000.js` `fda382ab27f6eb88e40901e8c537246e35b2c03cc010822a3df2515b7743d801`	pdf-javascript-stream	PDF /JS object 7 at offset 0x550	7493 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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