PDF malware analysis — malicious · d54510321eb6c9ed

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: 47c1e8ed734689406e2490649b90989b SHA-1: fd436fd9953eefd0950491929231b5aa252dcb66 SHA-256: d54510321eb6c9edd8b927d3778dd8b29248ca41df6eef86acbac6b3c0e12c32

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

This PDF file contains obfuscated JavaScript, indicated by multiple PDF-specific heuristic firings including 'PDF_JAVASCRIPT', 'PDF_JS', 'PDF_EVAL', and 'PDF_FROMCHARCODE'. The embedded JavaScript stream, named 'javascript_obj0013_001.js', likely attempts to download and execute a second-stage payload. The obfuscation and use of eval() suggest malicious intent.

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` `0b99d5da812cda201cd07f6da3aa532d075b34d222d78167c80beb5fdf5fb7aa`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3D2	12463 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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