PDF malware analysis — malicious · 3cff2e1255d1d62f

MALICIOUS

PDF

17.6 KB

MD5: ced584d5c61d094b1f1e1d2a2d1a0b3f SHA-1: 0e6dbc03f4a41e97646819ed461117aded56c498 SHA-256: 3cff2e1255d1d62f1beddd5128743b4e2587cd6123f3ec7aae8d8d0b8c83d55a

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains obfuscated JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, PDF_EVAL, and PDF_FROMCHARCODE. The critical ClamAV detection further confirms its malicious nature. The embedded JavaScript stream, named 'javascript_obj0006_000.js', is likely responsible for executing the malicious payload, potentially involving code evaluation and string manipulation to hide its true intent.

Heuristics 6

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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_obj0006_000.js` `3d09efce4c67d6667458855bf870344f0dfaeb180640fa6446a9acc5b7ba5748`	pdf-javascript-stream	PDF /JS object 6 at offset 0x197	18443 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 13 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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