PDF malware analysis — malicious · adcc58276230d265

MALICIOUS

PDF

344.4 KB

MD5: 23d10798a5cfff4bf4cd0516a189664a SHA-1: 0f0813830350d9584e431c47d4c672230d5cf32e SHA-256: adcc58276230d2653270fc30659e9bb924c634bff777b0225eb9390242bae865

138 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The presence of PDF_UNESCAPE and PDF_FILTER_HEX suggests obfuscation and exploitation techniques. ClamAV detection as Pdf.Exploit.Agent-36189 confirms malicious intent, likely involving the execution of a secondary stage payload via the JavaScript.

Heuristics 6

ClamAV: Pdf.Exploit.Agent-36189 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36189
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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_obj0008_000.js` `88576e6878a51a5186d38c4cce468a6761ab34c71d4a4162f6913ef20c66229f`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	117279 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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