PDF malware analysis — malicious · ea543012d60062e4

MALICIOUS

PDF

7.0 KB

MD5: 611e9db00c273304bff84e4375b65c8b SHA-1: 4db4fff5dcb7004d8124807abc14605a440a366d SHA-256: ea543012d60062e41c25a184d94d6be50d73470768e15123703c24ed8abda2dd

118 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, and PDF_UNESCAPE. The embedded JavaScript stream, named 'javascript_obj0014_000.js', is likely responsible for executing a malicious payload. ClamAV also flagged this file as Heuristics.PDF.ObfuscatedNameObject, further supporting its malicious nature. The exact intent of the script could not be fully determined due to obfuscation, but it is characteristic of a downloader or initial execution stage.

Heuristics 5

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (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.
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_obj0014_000.js` `0bc49599dc64b3d18d3849ad45e8e31658b87a341ab458b335cc4ebcaee220ac`	pdf-javascript-stream	PDF /JS object 14 at offset 0x46A	2750 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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