PDF malware analysis — malicious · d9cf49ce3de28daf

MALICIOUS

PDF

3.9 KB

MD5: 5a28e1d76202197c81870403b5994514 SHA-1: ceef59b88ffb41acdd18d77188c46e4efd679535 SHA-256: d9cf49ce3de28daf3f9c0de7901854b9ca922d1ac955922dfd3ea7132bd31b6f

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The presence of eval() and String.fromCharCode suggests the script is obfuscated and likely intended to download and execute a second-stage payload. No specific family could be identified due to the generic nature of the obfuscation.

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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111711_000.js` `4447bc3bf2370788a868beaf4e818cbde6061d04686c8a8695d700584551fe2b`	pdf-javascript-stream	PDF /JS object 111711 at offset 0x197	4794 bytes
`javascript_obj111712_001.js` `76c53926cbc4c35d3010fe446347fa14fd90c9482896fe9edb5e1e5172fcc85b`	pdf-javascript-stream	PDF /JS object 111712 at offset 0xDB5	531 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.