PDF malware analysis — malicious · ffd69a4989293d4c

MALICIOUS

PDF

7.6 KB Created: 2009-10-10 19:42:67 Authoring application: PDF Library 2.6.6 (via PDF Library 10.6.3)

MD5: b5a98c58f3e61c278e3c48f88b76ca66 SHA-1: 2f775ac45ff560c3923636f46835da065dcee982 SHA-256: ffd69a4989293d4c6e36fbef5a264286a250abbe61c6118e251702e464dac261

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by an ML classifier and exhibits suspicious characteristics including JavaScript actions and embedded JS streams. The presence of ASCIIHexDecode filters further indicates obfuscation techniques commonly used in malicious PDFs. The embedded JavaScript file, 'javascript_obj0007_000.js', is likely responsible for executing the malicious payload.

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` `6b938a73c906d1bcef9a12c249e600b653951a99e8da52c6338d9bde7495f460`	pdf-javascript-stream	PDF /JS object 7 at offset 0x268	37089 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long hex-escaped blob(s).

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