PDF malware analysis — malicious · b6a82d32118f7376

MALICIOUS

PDF

14.1 KB

MD5: 8627dad06e559fd34fb1970393d75297 SHA-1: f3e0826c45a05e356b938886272d46e316095c48 SHA-256: b6a82d32118f73765fd11f1054f051dca7d44060a5d8d888b4d2aed7aed09ed1

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF contains obfuscated JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT', 'PDF_JS', and 'PDF_FROMCHARCODE'. The ClamAV detection 'Heuristics.PDF.ObfuscatedNameObject' further confirms its malicious nature. The embedded JavaScript file, 'javascript_obj0006_000.js', is the primary artifact responsible for executing the malicious payload, likely involving downloading and running additional malware.

Heuristics 5

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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` `2a2926b57f216f01a3490cca11522648c859a328d5340fcf3acf7e21dfbf58ed`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1AD	14286 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 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.