PDF malware analysis — malicious · bdafc1559a4458cf

MALICIOUS

PDF

3.5 KB Created: 2009-04-05 17:46:46 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 5c23899003fca05b478ff508c89ebbd9 SHA-1: b69c08ec4c40ad13916119d9a8aed69c40cbbdd1 SHA-256: bdafc1559a4458cf0f7dafd99173eedb9cd62aa5643dd220f6e4072e452a5656

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, including an eval() call and String.fromCharCode usage, indicating obfuscated code execution. The heuristics suggest the JavaScript is designed to download and execute a secondary payload. While the specific family is not identifiable, the techniques used are common for initial access via malicious documents.

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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_000.js` `40f50a34930de3b56444ad82a4dda60b644ffa443c9982c7d1f752fb8a5927e5`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3CE	7169 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`deobfuscated.js` `46f7fa1f0aa029d22505075754ef2ba400c7432f96f9250c1c5f74dd572de443`	deobfuscated-js	PDF JavaScript deobfuscation pass	16134 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s). Carved artifact contains 2 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.