PDF malware analysis — malicious · a2d124f713d7ea44

MALICIOUS

PDF

9.3 KB Created: Ö'W¾C0ëÇ{:ýÝAv?3Û`fmùÞÍãÂ)¨a¢Q|¡[4g

MD5: 00b041786d91db2159a46fca45f76449 SHA-1: 09e3fe01e5487d1e2472fedc612f1190e024be10 SHA-256: a2d124f713d7ea44647f3a350702e112814e2e3205458a57f918f0397709c529

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious and contains embedded JavaScript. The PDF is also noted as being encrypted with JavaScript, indicating that the script is used to hide or obfuscate the malicious content. The document body contains nonsensical text, suggesting it is a lure. The embedded JavaScript is likely responsible for decrypting and executing the actual malicious payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

Encrypted PDF carries /JS — payload hidden from static analysis high PDF_ENCRYPTED_WITH_JS

PDF declares /Encrypt and also references an executable trigger (/JS). Document encryption hides the JavaScript body and stream contents from static scanners — combined with auto-execution indicators this is a known evasion pattern used to deliver weaponised JavaScript that the analyst cannot inspect without the decryption key.
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` `b0494af383b92c9cb7616853ec0821b40399cbdc909fbc49a0258c50f41af272`	pdf-javascript-stream	PDF /JS object 7 at offset 0x63F	6544 bytes

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