PDF malware analysis — malicious · 568250637bf3af0d

MALICIOUS

PDF

7.6 KB Created: 2009-11-27 19:45:59 Authoring application: PDF Library 6.1.1 (via PDF Library 4.1.8)

MD5: e580e2d20d471bcd039306a19adb72d8 SHA-1: 4b175d23c24d5b048aaec1db27464d9e9064d6c2 SHA-256: 568250637bf3af0dc30e8795330744b22fc33d6472fcf10c58c86b6059ecc341

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by an ML classifier as malicious and contains embedded JavaScript. The JavaScript stream, named 'javascript_obj0007_000.js', is likely responsible for executing the malicious payload. The presence of ASCIIHexDecode filters with exploit indicators further suggests an attempt to obfuscate malicious content, typical of PDF-based exploits.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
Suspicious extracted artifact medium 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.
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_obj0007_000.js` `4a88c229046589ae0bfaa8086ce15c0287c07a8822288331a96facfdc9245247`	pdf-javascript-stream	PDF /JS object 7 at offset 0x268	37401 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long hex-escaped blob(s).

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