PDF malware analysis — malicious · 1dc73398195a7b07

MALICIOUS

PDF

8.5 KB Created: 2010-02-12 03:07:30 Authoring application: IruOaJANhuYeTCdbi (via XmNOmeozGMrZeWFZX)

MD5: 47401afadbdac53063df5c89ddb13893 SHA-1: 76cf3a46d4c19b7074371263535d07a9adae821f SHA-256: 1dc73398195a7b0756c4c1bb17aa75b15a396cb1862eb4a8f5e0ea0a5ef0169f

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Pdf.Exploit.Agent-35572' strongly suggests a known exploit. The embedded JavaScript, though obfuscated, likely serves to download and execute a secondary payload, a common technique for initial access.

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` `9476e9dc22500e44b3b9eed340b2834be9c685168c3d8526d81cd736a638cd74`	pdf-javascript-stream	PDF /JS object 7 at offset 0x368	7011 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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