PDF malware analysis — malicious · 569edb516ca6a281

MALICIOUS

PDF

6.1 KB Created: 2008-09-07 22:47:39 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12; modified using iText 2.1.7 by 1T3XT)

MD5: 002c8e2a2856c30a988294e1e18def46 SHA-1: defc8f422653b50019e381da32e58fff2751d943 SHA-256: 569edb516ca6a281ffd7f8752e1eadd52c4e136d3773c64c8bafeb965919cd6c

116 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is identified as malicious by ML classifiers and ClamAV, specifically detecting the CVE-2009_0927 exploit. The presence of embedded JavaScript, including obfuscated strings and calls to `String.fromCharCode`, indicates an attempt to execute arbitrary code. This exploit likely serves as a dropper for further malicious activity.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.CVE_2009_0927-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.CVE_2009_0927-1
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_obj0013_001.js` `5af22646e9f36795bb2c8949120fcd997774c7b589e9ec148c9889b104b97aab`	pdf-javascript-stream	PDF /JS object 13 at offset 0x352	4693 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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