PDF malware analysis — malicious · a49bba0dcc3b663a

MALICIOUS

PDF

7.3 KB Created: 2009-04-06 21:04:49 Authoring application: JYHuMVaEOPicSWtAuKI (via EDuCtYXimLlIPMSRP)

MD5: 4ad4419f482403c543365cad5e60269a SHA-1: b50488eacbb8954b6dcc3adb5fe4734c65a4489f SHA-256: a49bba0dcc3b663a530f7524dbe57f1c4d6c08cc1400b5e40b2c242a0a4b5b0d

86 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 ClamAV detection of 'Pdf.Exploit.Agent-35572' strongly suggests a known exploit. The JavaScript is obfuscated, making its exact function difficult to determine, but it is likely designed to download and execute a second-stage payload. The document body text is nonsensical and does not provide clues to the lure.

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` `8dc368b2ddd4aa7308a1dd30ce28f1983dd1b821ffd4b948278384225cc09213`	pdf-javascript-stream	PDF /JS object 7 at offset 0x27C	6017 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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