PDF malware analysis — malicious · 8beca72653f6fce5

MALICIOUS

PDF

4.3 KB

MD5: 4be11428111c32da08f0e68fc24b067b SHA-1: 415f1702e47e78eaa5944f6ada6fb31f13972d47 SHA-256: 8beca72653f6fce5e87c5eac60a1e694a6ee00940d51280439b708cc87424e67

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_EVAL and PDF_FROMCHARCODE firings suggest that the JavaScript code is obfuscated and uses eval() and String.fromCharCode() for execution. This pattern is commonly used to download and execute further malicious payloads. No specific malware family could be identified, but the techniques used are consistent with a downloader or dropper.

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_obj0418_000.js` `6785256dc691d27abcd9646fafd9b4906165f6d9142b58bfef0201d39366a6e5`	pdf-javascript-stream	PDF /JS object 418 at offset 0x138	8296 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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