PDF malware analysis — malicious · d18ec23c07a3a14e

MALICIOUS

PDF

4.1 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 174feabceeba6fbddd7918049ac39985 SHA-1: cc17278a4f5dde7d9fcc69e2e4a30a16009b8932 SHA-256: d18ec23c07a3a14ec39d4bc330803ec0f370775e59c0aae0f58292fffe145206

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The presence of an eval() call and String.fromCharCode usage within the decoded stream suggests obfuscated code execution. The extracted artifact 'javascript_obj0013_001.js' is also flagged as suspicious due to script obfuscation indicators. The script's purpose is to execute obfuscated code, likely to download and run a second-stage payload, but the exact functionality is obscured.

Heuristics 5

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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. (matched inside decoded stream)
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` `228c6fca6ae78cfe916e5b708648f09a064bad445b548d9c1eab20f7b563fb17`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3D2	12558 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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