PDF malware analysis — malicious · e6a31939deba874c

MALICIOUS

PDF

7.7 KB Created: 2009-12-04 19:41:78 Authoring application: PDF Library 7.1.9 (via PDF Library 10.5.10)

MD5: db7c7bb2a33e4f6144ec12f02e195a70 SHA-1: ee1cf10a005ca61b64083b68d53e7645e8f65e18 SHA-256: e6a31939deba874cbe04d9f05ed271555ad95951fac74341070e9420d57d955c

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF was flagged as malicious by an ML classifier 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 further indicates obfuscation techniques commonly used in malicious PDFs.

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` `e68e714758e1fc050c9382c04c82df54a5427181a670b5edb5c7f6eb28adee98`	pdf-javascript-stream	PDF /JS object 7 at offset 0x268	37377 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long hex-escaped blob(s).

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