PDF malware analysis — malicious · d82d80c274f4ffde

MALICIOUS

PDF

14.5 KB Created: 2009-06-15 13:36:07 Authoring application: yjXmubiZeMPDdpxZhlIuj (via KEAsaSMuuwOJmg)

MD5: 13cad5650ee75564b54c16fc77693b61 SHA-1: 9671637e4a6871384151c72a872ca927d405c69c SHA-256: d82d80c274f4ffde59e45062e34044d5bb1b197a9221299d92dfbff7927bf0b2

116 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by ML classifiers and ClamAV as malicious (Pdf.Exploit.Agent-35572). It contains embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics, which likely attempts to exploit a vulnerability. The ML classifier's high confidence and the specific ClamAV detection strongly suggest this PDF is designed to deliver a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-35572 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35572
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape 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_obj0007_000.js` `8b9e93c008032b220fb6a0565995fabe83a7c7ca01ecc916c57f3fbb13084ac2`	pdf-javascript-stream	PDF /JS object 7 at offset 0x3E5	13035 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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