PDF malware analysis — malicious · 46dc0b4142bf2b57

MALICIOUS

PDF

7.8 KB Created: 2009-12-03 19:43:81 Authoring application: PDF Library 1.10.3 (via PDF Library 7.5.8)

MD5: 8d6b91e35a698f50eee7f7ba86b47600 SHA-1: 00cd28f6fe162e535b07a21dea98f2275e3e5a5f SHA-256: 46dc0b4142bf2b573fb034082c7774b8a1f175b2453bbe8eb6218381bf96acd4

116 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical ClamAV detection and medium-severity heuristic for ASCIIHexDecode filter with exploit indicators suggest this JavaScript is malicious. The embedded JavaScript file, 'javascript_obj0007_000.js', is likely responsible for executing the exploit. The exact nature of the exploit and its payload cannot be determined without further dynamic analysis.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-7685 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-7685
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
Suspicious extracted artifact medium 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `faa89f65b715f873955c0e3ea35cb8156b392575c623da0b8344e37930962a32`	pdf-javascript-stream	PDF /JS object 7 at offset 0x268	37665 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long hex-escaped blob(s).

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