PDF malware analysis — malicious · df9ce05467347ea0

MALICIOUS

PDF

5.1 KB

MD5: ab653ff3d39e3ca8abcf96ddd9a1569e SHA-1: 799983689f6c5da13b47e2f4f0029fff1738bf42 SHA-256: df9ce05467347ea09c7c58dba08cd607a29e7ef8f9218972f55a3e3e39b12e05

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

The PDF document contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_EVAL and PDF_FROMCHARCODE firings suggest that the JavaScript is obfuscated and likely used to execute arbitrary code. The extracted artifact 'javascript_obj62307_000.js' is also flagged as suspicious due to script obfuscation indicators. The primary attack pattern involves leveraging JavaScript within the PDF to achieve code execution, likely for downloading and running a secondary payload.

Heuristics 5

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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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_obj62307_000.js` `de20ae484e01ce2ad5d8d04920b90df923ab28cacf9f916199e98f46ad0f1676`	pdf-javascript-stream	PDF /JS object 62307 at offset 0x137	8364 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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