PDF malware analysis — malicious · 478eb4fafdcf8cee

MALICIOUS

PDF

16.0 KB

MD5: 5595cf55c7dc752547aa5b2b30d4cc09 SHA-1: e5f5ef175ef72102c1675580fe3fdbf47ca2a55f SHA-256: 478eb4fafdcf8ceecb4319258abcd22abd197d4e8ce74fbe19d88ac020508017

78 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. ClamAV also flagged it with 'Heuristics.PDF.ObfuscatedNameObject', suggesting obfuscation techniques common in malware. The embedded JavaScript file, 'javascript_obj0006_000.js', is the primary artifact suggesting malicious intent, likely to download and execute a second-stage payload.

Heuristics 4

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.
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` `489bbdac4c071b369f4c2f8f075a90e6ace0d5828300680e067a359f12ae741b`	pdf-javascript-stream	PDF /JS object 6 at offset 0x19C	17305 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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