PDF malware analysis — malicious · 46d933043bb7a73e

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: 8ae644b439aa669988441b38415c5eeb SHA-1: c406109aab27cf17ad94ff511c0fd5b246bfa05b SHA-256: 46d933043bb7a73e18809f605ff78cbab55e947d74957d76fe27e7d1760a3176

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 a PDF_EVAL heuristic firing suggests that the JavaScript code is obfuscated and uses eval() to execute it. This pattern is commonly used to download and execute additional malicious payloads. The extracted artifact 'javascript_obj0013_001.js' is also flagged as suspicious due to script obfuscation indicators. The confidence is moderate due to the lack of specific IOCs like URLs or hashes within the provided evidence, and the obfuscated nature of the script.

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` `3d05bdd22de5f3f14b4a77fb3d4dd44b6c3b3981a5214cb06107ed4d91a0ea88`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3D2	12703 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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