PDF malware analysis — malicious · 0d06a6264432ee56

MALICIOUS

PDF

10.0 KB Created: 2009-09-08 00:48:04 Authoring application: iFuUtZiMuNJonPJ (via SzuMWyesfGIUhwe)

MD5: d6b4b671d81694a2ec8ecbe6bd369576 SHA-1: 5d2a814b523da4cfa4791386141323f6dffc82d4 SHA-256: 0d06a6264432ee56dda8a4ff849b66f87f734f4c185e0d5fb5c38a2f5a6e679f

208 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript that utilizes an eval() function, a common indicator of obfuscated malicious code. This script is designed to exploit a vulnerability within the PDF viewer to download and execute a secondary payload from a hardcoded URL. The ClamAV detection and ML classifier strongly indicate malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTER

PDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
ClamAV: Pdf.Exploit.Agent-35572 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35572
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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` `b5ac84c26a7a5dce4c7c635ee4e885704515a31969d3f11c8502e03a643369ba`	pdf-javascript-stream	PDF /JS object 7 at offset 0x459	8304 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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