PDF malware analysis — malicious · f2ecb9b408501b46

MALICIOUS

PDF

3.4 KB

MD5: 7ac5b20dc03ffb7ad265fc78ecca8428 SHA-1: ed7aefdbee990a465aaa2c7d332f52319599c884 SHA-256: f2ecb9b408501b46b27894b895f13146a8e0585bc490da46b208af2b07616d49

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains obfuscated JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics, and a critical ClamAV detection for obfuscated objects. The embedded JavaScript file, javascript_obj0006_000.js, is likely responsible for executing the malicious payload. The unescape() call further suggests code deobfuscation is occurring. The exact intent of the script cannot be fully determined due to obfuscation, but it is designed to execute arbitrary code.

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_obj0006_000.js` `d7c8759ef591ab9a37dd101dde00222dba793f96ce565e984ade72f1d268a080`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1B0	2172 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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